CMPC, CMPC+ and CSNA Commands

cmpc

csna

show extended channel cmgr

show extended channel cmpc

show extended channel csna

show extended channel tg

tg (CMPC)

tg (CMPC+)

CMPC, CMPC+ and CSNA Commands

Use the commands in this chapter to configure and monitor the Cisco Mainframe Channel Connection (CMCC) products, which include the Channel Interface Processor (CIP) and the Channel Port Adapter (CPA). For hardware technical descriptions and for information about installing the router interfaces, refer to the hardware installation and maintenance publication for your particular product.

Note Unless otherwise specified, all commands in this chapter are supported on the Cisco 7000 with RSP7000, Cisco 7500 and the Cisco 7200 series routers.

For interface configuration information and examples, refer to the "Configuring Cisco Mainframe Channel Connection Adapters," "Configuring CSNA and CMPC," and "Configuring CMPC+" chapters of the Cisco IOS Bridging and IBM Networking Configuration Guide.

For a conversion table of the modular products and Cisco 7000 family processors, refer to the "Platform Support" appendix of the Cisco IOS Configuration Fundamentals Command Reference.

cmpc

To configure a CMPC (or CMPC+) read subchannel and a CMPC (or CMPC+) write subchannel, use the cmpc interface configuration command. Use the no form of this command to remove a subchannel definition and to deactivate the transmission group.

cmpc path device tg-name {read | write}

no cmpc path device

path	Hexadecimal value in the range 0000 to FFFF. This value specifies the logical channel path and consists of two digits for the physical connection (either on the host or on the ESCON director), one digit for the channel logical address, and one digit for the control unit logical address. If the path is not specified in the IOCP, the default values for channel logical address and control unit logical address is 0.
device	Hexadecimal value in the range of 00 to FF. This is the unit address associated with the control unit number and path as specified in the host IOCP file.
tg-name	Name of the CMPC or CMPC+ transmission group. The maximum length of the name is 8 characters.
read	Same read value as specified in the TRL major node.
write	Same write value as specified in the TRL major node.

Defaults

No default is specified.

Command Modes

Interface configuration

Command History

Release Modification

11.3

This command was introduced.

12.0(3)T

Support for the CMPC+ feature was added.

Release	Modification
11.3	This command was introduced.
12.0(3)T	Support for the CMPC+ feature was added.

Usage Guidelines

Each cmpc configuration command in a given CMPC or CMPC+ transmission group specifies the same transmission group name. The corresponding tg command specifies the same transmission group name. Together, the cmpc and tg commands make up the transmission group specification.

The cmpc command defines the read/write subchannel addresses that CMPC or CMPC+ uses to connect to the host. The command corresponds to the definitions in the TRL major node on the host. Configure the cmpc command on a CMCC adapter physical interface. Configure one read subchannel and one write subchannel. If CMPC or CMPC+ is configured on a CMCC adapter with two physical interfaces, the read and write CMPC or CMPC+ subchannels may be configured on separate physical interfaces.

The no cmpc command deactivates the CMPC or CMPC+ subchannel. If the transmission group is used for a non-HPR connection, all sessions using the transmission group will be terminated immediately. If the transmission group is an HPR connection, all sessions using the transmission group will be terminated if no other HPR connection is available to the host.

Examples

The following example configures a read and a write subchannel on path C020 for the CMPC or CMPC+ transmission group named CONFIGE:

cmpc C020 F8 CONFIGE READ
cmpc C020 F9 CONFIGE WRITE

Related Commands

Command Description

tg (CMPC)

Defines LLC connection parameters for the CMPC transmission group.

tg (CMPC+)

Defines IP connection parameters for the CMPC+ transmission group.

show extended channel cmpc

Displays information about each CMPC or CMPC+ subchannel configured on the specified channel interface.

show extended channel tg

Displays configuration, operational information, and statistics information for CMPC or CMPC+ transmission groups configured on the virtual interface of the specified CMCC adapter.

show extended channel subchannel

Displays information about the CMCC adapter physical interfaces and displays information that is specific to the interface channel connection. The information displayed generally is useful only for diagnostic tasks performed by technical support personnel.

show extended channel statistics

Displays statistical information about subchannels on the physical interface of a CMCC adapter and displays information that is specific to the interface channel devices. The information generally is useful only for diagnostic tasks performed by technical support personnel.

Command	Description
tg (CMPC)	Defines LLC connection parameters for the CMPC transmission group.
tg (CMPC+)	Defines IP connection parameters for the CMPC+ transmission group.
show extended channel cmpc	Displays information about each CMPC or CMPC+ subchannel configured on the specified channel interface.
show extended channel tg	Displays configuration, operational information, and statistics information for CMPC or CMPC+ transmission groups configured on the virtual interface of the specified CMCC adapter.
show extended channel subchannel	Displays information about the CMCC adapter physical interfaces and displays information that is specific to the interface channel connection. The information displayed generally is useful only for diagnostic tasks performed by technical support personnel.
show extended channel statistics	Displays statistical information about subchannels on the physical interface of a CMCC adapter and displays information that is specific to the interface channel devices. The information generally is useful only for diagnostic tasks performed by technical support personnel.

csna

To configure SNA support on a CMCC physical channel interface, use the csna interface configuration command. This command is used to specify the path and device/subchannel on a physical channel of the router to communicate with an attached mainframe. Use the no form of this command to delete the CSNA device path.

csna path device [maxpiu value] [time-delay value] [length-delay value]

no csna path device

Syntax Description

path

Hexadecimal value in the range 0000 to FFFF. This value specifies the logical channel path and consists of two digits for the physical connection (either on the host or on the ESCON director), one digit for the channel logical address, and one digit for the control unit logical address. If the path is not specified in the IOCP, the default values for channel logical address and control unit logical address is 0.

device

Hexadecimal value in the range 00 to FF. This is the unit address associated with the control unit number and path as specified in the host IOCP file.

maxpiu value

(Optional) Maximum channel I/O block size in bytes that is transmitted across the physical channel from the CMCC adapter to the attached mainframe. The range is 4096 to 65535 bytes. The default is 20470 bytes.

time-delay value

(Optional) Number of milliseconds a host-bound SNA frame may be delayed in order to maximize the channel I/O block size. The range is 0 to 100 ms. The default is 10 ms.

length-delay value

(Optional) Amount of SNA frame data in bytes the CSNA subchannel accumulates before transmitting the accumulated channel I/O block to the attached mainframe. The range is 0 to 65535 bytes. The default is 20470 bytes.

path	Hexadecimal value in the range 0000 to FFFF. This value specifies the logical channel path and consists of two digits for the physical connection (either on the host or on the ESCON director), one digit for the channel logical address, and one digit for the control unit logical address. If the path is not specified in the IOCP, the default values for channel logical address and control unit logical address is 0.
device	Hexadecimal value in the range 00 to FF. This is the unit address associated with the control unit number and path as specified in the host IOCP file.
maxpiu value	(Optional) Maximum channel I/O block size in bytes that is transmitted across the physical channel from the CMCC adapter to the attached mainframe. The range is 4096 to 65535 bytes. The default is 20470 bytes.
time-delay value	(Optional) Number of milliseconds a host-bound SNA frame may be delayed in order to maximize the channel I/O block size. The range is 0 to 100 ms. The default is 10 ms.
length-delay value	(Optional) Amount of SNA frame data in bytes the CSNA subchannel accumulates before transmitting the accumulated channel I/O block to the attached mainframe. The range is 0 to 65535 bytes. The default is 20470 bytes.

Defaults

maxpiu value: 20470 (0x4ff6) bytes

time-delay value: 10 ms

length-delay value: 20470 (0x4ff6) bytes

Command Modes

Interface configuration

Command History

Release Modification

11.0

This command was introduced.

Release	Modification
11.0	This command was introduced.

Usage Guidelines

The parameters maxpiu, time-delay and length-delay control the characteristics of host-bound traffic for the CSNA subchannel. The channel protocol used by CSNA allows multiple SNA frames to be blocked into one channel I/O block, reducing the channel bandwidth utilization and mainframe and CMCC adapter process utilization.

The maxpiu parameter allows you to set the maximum size of a host-bound channel I/O block.

The time-delay parameter instructs the CSNA subchannel to delay sending the channel I/O block for the specified time in milliseconds, from the time the first SNA packet is blocked. This can increase the network latency for an SNA packet by up to the specified time delay.

The length-delay parameter instructs the CSNA subchannel to delay sending the channel I/O block until it contains the number of bytes specified by the length-delay parameter. An accumulated block is sent to the mainframe if one of the following conditions is true:

time-delay expires
channel I/O block reaches the length-delay size
channel I/O block reaches the maxpiu size.

A time-delay value of 0 instructs the CSNA subchannel to send SNA packets to the mainframe as soon as they are received from the network. A length-delay value of 0 instructs the CSNA subchannel to ignore this parameter.

The no csna command deactivates and removes the CSNA subchannel configuration. It also deactivates all LLC2 sessions established over the subchannel.

Examples

The following example shows CSNA, offload, and CLAW configured on a channel interface. CSNA has no dependencies to CLAW, Offload, or CMPC.

interface channel 1/0
 no ip address
 no keepalive
 offload c700 c0 172.18.1.127 TCPIP OS2TCP TCPIP TCPIP TCPIP API
 claw C700 c2 172.18.1.219 EVAL CISCOVM AAA BBB
 csna c700 c4
 csna c700 c5 maxpiu 65535 time-delay 100 length-delay 65535
 csna c700 c6 maxpiu 65535 time-delay 100

Related Commands

Command Description

lan

Configures an internal LAN on a CMCC adapter interface and enters the internal LAN configuration mode.

adapter

Configures internal adapters.

show extended channel csna

Displays information about the CSNA subchannels configured on the specified CMCC interface.

show extended channel connection-map llc2

Displays the number of active LLC2 connections for each SAP and the mapping of the internal MAC adapter and the SAP to the resource that activated the SAP.

show extended channel subchannel

Displays information about the CMCC adapter physical interfaces and displays information that is specific to the interface channel connection. The information displayed generally is useful only for diagnostic tasks performed by technical support personnel.

show extended channel statistics

Displays statistical information about subchannels on the physical interface of a CMCC adapter and displays information that is specific to the interface channel devices. The information generally is useful only for diagnostic tasks performed by technical support personnel.

Command	Description
lan	Configures an internal LAN on a CMCC adapter interface and enters the internal LAN configuration mode.
adapter	Configures internal adapters.
show extended channel csna	Displays information about the CSNA subchannels configured on the specified CMCC interface.
show extended channel connection-map llc2	Displays the number of active LLC2 connections for each SAP and the mapping of the internal MAC adapter and the SAP to the resource that activated the SAP.
show extended channel subchannel	Displays information about the CMCC adapter physical interfaces and displays information that is specific to the interface channel connection. The information displayed generally is useful only for diagnostic tasks performed by technical support personnel.
show extended channel statistics	Displays statistical information about subchannels on the physical interface of a CMCC adapter and displays information that is specific to the interface channel devices. The information generally is useful only for diagnostic tasks performed by technical support personnel.

show extended channel cmgr

To display information about the MPC+ transmission group (TG) connection manager, use the show extended channel cmgr privileged EXEC command.

show extended channel slot/port cmgr [tg-name]

Syntax Description

slot

Slot number.

port

Physical channel interface port number.

tg-name

(Optional) Name of the transmission group.

slot	Slot number.
port	Physical channel interface port number.
tg-name	(Optional) Name of the transmission group.

Command Modes

Privileged EXEC

Command History

Release Modification

12.0(3)T

This command was introduced.

Release	Modification
12.0(3)T	This command was introduced.

Usage Guidelines

This command is valid on the CIP's virtual channel interface or the CPA's physical channel interface.

Examples

The following is sample output from the show extended channel cmgr command:

Router# show extended channel 3/2 cmgr
CMGR:MPCPTG2  Type=PTP
  Local Group Token:0500128933                    Remote Group Token :0500993355
  Local VC Token   :0500109002                    Local Conn. Token  :0500109003
  Remote VC Token  :0500201002                    Remote Conn. Token :0500201002
  VC Status        :Active                        Connection Status  :Active
 
CMGR:MPCPTG3   Type=PTP
  Local Group Token:050014573                    Remote Group Token :05008984300
  Local VC Token   :0500109044                   Local Conn. Token  :0500109066
  Remote VC Token  :0500201095                   Remote Conn. Token :0500201088
  VC Status        :Active                       Connection Status  :Active

Table 26 describes the fields shown in the display.

Table 26: show extended channel cmgr Field Descriptions

Field Description

Local Group Token

CMCC's MPC+ group token for this TG.

Remote Group Token

Host's MPC+ group token for this TG.

Type

Connection manager type supported is point-to-point (PTP).

Local VC Token

CMCC adapter's token for the connection manager's virtual circuit.

Remote VC Token

host's token for the connection manager's virtual circuit.

VC Status

Valid states for a VC are:

Reset---Awaiting a connection manager virtual circuit activate indication from the host.

Active---Connection manager virtual circuit active indication was received from the host and CMCC adapter has sent a virtual circuit active indication to the host. The virtual circuit is now ready to send and/or receive connection requests.

Local Conn Token

CMCC's token for the connection manager's connection.

Remote Conn Token

Host's token for the connection manager's connection.

Connection Status

Valid states for a connection manager's connection are:

Reset---Awaiting a connection manager connection request from the host.

Active---Connection is active. The host has sent a connection request and the CMCC adapter has responded with a confirmation of the connection.

Field	Description
Local Group Token	CMCC's MPC+ group token for this TG.
Remote Group Token	Host's MPC+ group token for this TG.
Type	Connection manager type supported is point-to-point (PTP).
Local VC Token	CMCC adapter's token for the connection manager's virtual circuit.
Remote VC Token	host's token for the connection manager's virtual circuit.
VC Status	Valid states for a VC are: Reset---Awaiting a connection manager virtual circuit activate indication from the host. Active---Connection manager virtual circuit active indication was received from the host and CMCC adapter has sent a virtual circuit active indication to the host. The virtual circuit is now ready to send and/or receive connection requests.
Local Conn Token	CMCC's token for the connection manager's connection.
Remote Conn Token	Host's token for the connection manager's connection.
Connection Status	Valid states for a connection manager's connection are: Reset---Awaiting a connection manager connection request from the host. Active---Connection is active. The host has sent a connection request and the CMCC adapter has responded with a confirmation of the connection.

Related Commands

Command Description

cmpc

Configures a CMPC (or CMPC+) read subchannel and a CMPC (or CMPC+) write subchannel.

show extended channel cmgr

Displays information about the MPC+ TG connection manager.

Command	Description
cmpc	Configures a CMPC (or CMPC+) read subchannel and a CMPC (or CMPC+) write subchannel.
show extended channel cmgr	Displays information about the MPC+ TG connection manager.

show extended channel cmpc

To display information about each CMPC or CMPC+ subchannel configured on the specified channel interface, use the show extended channel cmpc privileged EXEC command.

show extended channel slot/port cmpc [path [device]]

Syntax Description

slot

Slot number.

port

Physical channel interface port number.

path

(Optional) Logical channel path.

device

(Optional) 2-digit hexadecimal value that specifies a device address of the CPMC or CMPC+ subchannel. If specified, only status for that CMPC or CMPC+ device will be displayed. If not specified, status for all CMPC or CMPC+ devices for the specified path will be displayed.

slot	Slot number.
port	Physical channel interface port number.
path	(Optional) Logical channel path.
device	(Optional) 2-digit hexadecimal value that specifies a device address of the CPMC or CMPC+ subchannel. If specified, only status for that CMPC or CMPC+ device will be displayed. If not specified, status for all CMPC or CMPC+ devices for the specified path will be displayed.

Command Modes

Privileged EXEC

Command History

Release Modification

11.3

This command was introduced.

12.0(3)T

Support for the CMPC+ feature was added.

Release	Modification
11.3	This command was introduced.
12.0(3)T	Support for the CMPC+ feature was added.

Usage Guidelines

This command is valid only on the CMCC adapter physical interfaces.

Examples

The following is sample output on a Cisco 7500 router from the show extended channel cmpc command:

Router# show extended channel 3/0 cmpc c020 
 
     Path Dv  TGName    Dir    Bfrs  Status
CMPC C020 46  MVS2ISRA  READ   10    Active
CMPC C020 47  MVS2ISRA  WRITE  16    Active
CMPC C020 4A  MVS2ISR1  READ   7     Active
CMPC C020 4B  MVS2ISR1  WRITE  16    Active
CMPC C020 4C  MVS2ISR2  READ   7     Active
CMPC C020 4D  MVS2ISR2  WRITE  16    Active
CMPC C020 4E  MVS2TN    READ   0     Inactive
CMPC C020 4F  MVS2TN    WRITE  0     Inactive

Table 27 describes the fields shown in the display.

Table 27: show extended channel cmpc Field Descriptions

Field Description

Path

CMPC or CMPC+ channel path configured.

Dv

CMPC or CMPC+ subchannel device configured.

TGName

Transmission group name configured for the CMPC or CMPC+ subchannel.

Dir

Identifies this CMPC or CMPC+ subchannel as READ or WRITE.

Bfrs

On the read subchannel, this is the number of 4 KB-size pages that VTAM has allocated for each Read. This will match the MAXBFRU value configured in the VTAM TRL major node. On the write subchannel, this is the maximum number of 4 KB pages VTAM can write to the CMCC adapter for a single channel I/O. The value will always be 16 for the write subchannel because the CIP always allows VTAM to write up to 64 KB per channel I/O.

Status

State of the CMPC or CMPC+ subchannel. Valid values are:

Shutdown---CMCC adapter interface for this CMPC or CMPC+ subchannel is shutdown. In this state, the Bfrs value is not available and will be displayed as zeros.

Inactive---CMPC or CMPC+ subchannel is not active.

XID2 Pending---XID2 handshaking in progress.

Active---XID2 exchange completed; CMPC or CMPC+ subchannel is active.

Active+---XID2 exchange is complete; subchannel is active in HPDT mode.

Field	Description
Path	CMPC or CMPC+ channel path configured.
Dv	CMPC or CMPC+ subchannel device configured.
TGName	Transmission group name configured for the CMPC or CMPC+ subchannel.
Dir	Identifies this CMPC or CMPC+ subchannel as READ or WRITE.
Bfrs	On the read subchannel, this is the number of 4 KB-size pages that VTAM has allocated for each Read. This will match the MAXBFRU value configured in the VTAM TRL major node. On the write subchannel, this is the maximum number of 4 KB pages VTAM can write to the CMCC adapter for a single channel I/O. The value will always be 16 for the write subchannel because the CIP always allows VTAM to write up to 64 KB per channel I/O.
Status	State of the CMPC or CMPC+ subchannel. Valid values are: Shutdown---CMCC adapter interface for this CMPC or CMPC+ subchannel is shutdown. In this state, the Bfrs value is not available and will be displayed as zeros. Inactive---CMPC or CMPC+ subchannel is not active. XID2 Pending---XID2 handshaking in progress. Active---XID2 exchange completed; CMPC or CMPC+ subchannel is active. Active+---XID2 exchange is complete; subchannel is active in HPDT mode.

Related Commands

Command Description

cmpc

Configures a CMPC (or CMPC+) read subchannel and a CMPC (or CMPC+) write subchannel.

tg (CMPC)

Defines LLC connection parameters for the CMPC transmission group.

tg (CMPC+)

Defines IP connection parameters for the CMPC+ transmission group.

show extended channel cmgr

Displays information about the MPC+ TG connection manager.

Command	Description
cmpc	Configures a CMPC (or CMPC+) read subchannel and a CMPC (or CMPC+) write subchannel.
tg (CMPC)	Defines LLC connection parameters for the CMPC transmission group.
tg (CMPC+)	Defines IP connection parameters for the CMPC+ transmission group.
show extended channel cmgr	Displays information about the MPC+ TG connection manager.

show extended channel csna

To display information about the CSNA subchannels configured on the specified CMCC interface, use the show extended channel csna privileged EXEC command.

show extended channel slot/port csna [path [device]] [admin | oper | stats]

Syntax Description

slot

Slot number.

port

Port number.

path

(Optional) A hexadecimal value in the range of 0x0000 to 0xFFFF. This specifies the data path and consists of two digits for the physical connection (either on the host or on the ESCON Director switch), one digit for the control unit address, and one digit for the channel logical address. If not specified, information is displayed for all CSNA subchannels configured on the selected interface.

device

(Optional) A hexadecimal value in the range of 0x00 to 0xFE. This is the unit address associated with the control unit number and path as specified in the host IOCP file. If not specified, information is displayed for all CSNA subchannels configured with the specified path on the selected interface.

admin

(Optional) Displays configured values for CSNA channel devices. If neither admin, oper, or stats is specified, admin is the default.

oper

(Optional) Displays operational values for CSNA channel devices.

stats

(Optional) Displays statistics for CSNA channel devices.

slot	Slot number.
port	Port number.
path	(Optional) A hexadecimal value in the range of 0x0000 to 0xFFFF. This specifies the data path and consists of two digits for the physical connection (either on the host or on the ESCON Director switch), one digit for the control unit address, and one digit for the channel logical address. If not specified, information is displayed for all CSNA subchannels configured on the selected interface.
device	(Optional) A hexadecimal value in the range of 0x00 to 0xFE. This is the unit address associated with the control unit number and path as specified in the host IOCP file. If not specified, information is displayed for all CSNA subchannels configured with the specified path on the selected interface.
admin	(Optional) Displays configured values for CSNA channel devices. If neither admin, oper, or stats is specified, admin is the default.
oper	(Optional) Displays operational values for CSNA channel devices.
stats	(Optional) Displays statistics for CSNA channel devices.

Command Modes

Privileged EXEC

Command History

Release Modification

11.0(3)

This command was introduced.

Release	Modification
11.0(3)	This command was introduced.

Usage Guidelines

The information that is displayed by this command is generally useful for diagnostic tasks performed by technical support personnel only.

Examples

The following is sample output from the show extended channel csna command. Three examples are provided, one for each type of output as specified by the admin, oper, and stats keywords.

The following example displays the configured values for all CSNA devices on interface channel 1/0:

Router# show extended channel 1/0 csna admin
 
     Path Dv  maxpiu       time-delay   length-delay
CSNA C200 60  64000        100          64000
CSNA C200 61  64000        100          64000
CSNA C200 62  64000        100          64000

The following example displays operational data for all CSNA devices configured on interface channel 1/0. The channel interface must be up (no shut) for this information to be displayed.

Router# show extended channel 1/0 csna oper
 
     Path Dv Status       SlowDown  maxpiu       time-delay   length-delay
CSNA C200 60 setupComplet off       64000        100          64000
CSNA C200 61 setupComplet off       64000        100          64000
CSNA C200 62 setupComplet off       64000        100          64000

The following example displays CSNA statistics for subchannel path c200, device 60. The channel interface must be up (no shut) for this information to be displayed. If the maxpiu value is reconfigured while the CSNA subchannel is active (setupComplete) then the maxpiu value displayed by the oper keyword is the old, operational value.

Router# show extended channel 1/0 csna c200 60 stats
 
CSNA     C200 60
Blocks Transmitted =   38979079  Received =   38979075
Bytes  Transmitted =  79251477K  Received =      13554
Slow downs Sent =          0  Received =          0
Txd by maxpiu      : Blocks =          0   Bytes =         0
Txd by time-delay  : Blocks =        222   Bytes =     12522
Txd by length-delay: Blocks =          0   Bytes =         0

Table 28 describes the fields shown in the displays.

Table 28: show extended channel csna Field Descriptions

Field Description

Path

Path from the CSNA configuration.

Dev

Device address from the CSNA configuration.

Status

State of the CSNA device. One of the following values:

closed---Subchannel is closed.

pendingOpen---An Open Subchannel command has been received from VTAM.

open---Subchannel is open.

pendingSetup---VTAM has queried CIP for all configured MAC adapters.

setupComplete ---All internal MAC adapter information has been responded to the CIP. The CSNA subchannel is operational.

pendingClose---A Close Subchannel command has been received from VTAM.

unknown---Current state of the CSNA subchannel cannot be determined.

SlowDown

Status of flow control for the CSNA device.

off---Subchannel is normal (both CSNA and VTAM are able to send data.

sent--- CSNA has put VTAM into a slow down state for this CSNA subchannel.

received---VTAM has put the CSNA subchannel into a slow down state.

both---Both VTAM and the CSNA subchannel are in a slow down state.

unknown---Current state of flow control on this CSNA subchannel cannot be determined.

maxpiu

Maximum size of a channel I/O block that the CSNA subchannel can send to the host. This value may differ from the configured maxpiu value if the value is reconfigured while the CSNA subchannel is active (setupComplete).

CSNA blocks SNA frames into channel I/O blocks which must not exceed the maxpiu value. A length-delay value less than the maxpiu value can cause the channel I/O blocks to be limited to the lower value.

The maxpiu value may be reconfigured while the subchannel is operational but the new maxpiu value does not take effect until the subchannel is reinitialized (in other words, until the XCA major node is recycled). In this case, the maxpiu value displayed with the admin keyword will be the new, configured value while the maxpiu displayed by the oper keyword will be the old, operational value.

time-delay

CSNA blocks SNA frames destined for VTAM for time-delay milliseconds from the time the first SNA frame within a channel I/O block is blocked for transmission. This can increase the overall throughput of CSNA by minimizing the number of channel I/O operations. However, blocking can induce response time latency of a transaction by up to the time-delay value. If time-delay=0, CSNA ignores length-delay and puts each frame into the channel I/O block for transmission to the host. Even with a time-delay=0, CSNA may still block frames while waiting for a previous channel I/O to complete.

length-delay

CSNA blocks SNA frames destined for VTAM when the current block reaches the length-delay value in size (bytes). This will increase the chance of using larger block sizes for CSNA channel I/O. SNA frames are blocked up to either time-delay milliseconds or until the block reaches the length-delay size, at which time CSNA starts the channel I/O.

The length-delay is ignored if larger than the maxpiu value. It can be used to force CSNA blocking to generate smaller I/O blocks than specified by maxpiu. In general, however, larger blocks result in better channel throughput and efficiency. A value of zero causes the length-delay value to be ignored; blocking is then controlled by the maxpiu and time-delay parameters.

Blocks Transmitted

Number of channel I/O blocks sent to VTAM from this CSNA subchannel. The Blocks Transmitted value may be higher than the total blocks for the Txd by maxpiu, Txd by time-delay, and Txd by length-delay counters. This is due to NULL blocks (8 bytes each with no data) that CSNA transmits. The channel program used for LSA traffic consists of a write/read CCW chain. When VTAM has data for CSNA it sends it with the write CCW. When the chained read CCW is executed CSNA will respond with any pending inbound data. If CSNA has no pending inbound data the read CCW is satisfied with an 8-byte header indicating no data.

Blocks Received

Number of channel I/O blocks received from VTAM by this CSNA subchannel.

SlowDowns Sent

Number of times CSNA put VTAM into a slow down (flow control) for this subchannel device.

SlowDowns Received

Number of times VTAM put CSNA into a slow down (flow control) for this subchannel.

Txd by maxpiu

Blocks/Bytes

Number of channel I/O blocks and bytes transmitted to VTAM by this CSNA subchannel because the size of the channel I/O block reached the maxpiu value configured for this subchannel.

Txd by time-delay

Blocks/Bytes

Number of channel I/O blocks and bytes transmitted to VTAM by this CSNA subchannel because blocking time-delay configured for this subchannel expired.

Txd by length-delay Blocks/Bytes

Number of channel I/O blocks and bytes transmitted to VTAM by this CSNA subchannel because blocking length-delay configured for this subchannel was reached.

Field	Description
Path	Path from the CSNA configuration.
Dev	Device address from the CSNA configuration.
Status	State of the CSNA device. One of the following values: closed---Subchannel is closed. pendingOpen---An Open Subchannel command has been received from VTAM. open---Subchannel is open. pendingSetup---VTAM has queried CIP for all configured MAC adapters. setupComplete ---All internal MAC adapter information has been responded to the CIP. The CSNA subchannel is operational. pendingClose---A Close Subchannel command has been received from VTAM. unknown---Current state of the CSNA subchannel cannot be determined.
SlowDown	Status of flow control for the CSNA device. off---Subchannel is normal (both CSNA and VTAM are able to send data. sent--- CSNA has put VTAM into a slow down state for this CSNA subchannel. received---VTAM has put the CSNA subchannel into a slow down state. both---Both VTAM and the CSNA subchannel are in a slow down state. unknown---Current state of flow control on this CSNA subchannel cannot be determined.
maxpiu	Maximum size of a channel I/O block that the CSNA subchannel can send to the host. This value may differ from the configured maxpiu value if the value is reconfigured while the CSNA subchannel is active (setupComplete). CSNA blocks SNA frames into channel I/O blocks which must not exceed the maxpiu value. A length-delay value less than the maxpiu value can cause the channel I/O blocks to be limited to the lower value. The maxpiu value may be reconfigured while the subchannel is operational but the new maxpiu value does not take effect until the subchannel is reinitialized (in other words, until the XCA major node is recycled). In this case, the maxpiu value displayed with the admin keyword will be the new, configured value while the maxpiu displayed by the oper keyword will be the old, operational value.
time-delay	CSNA blocks SNA frames destined for VTAM for time-delay milliseconds from the time the first SNA frame within a channel I/O block is blocked for transmission. This can increase the overall throughput of CSNA by minimizing the number of channel I/O operations. However, blocking can induce response time latency of a transaction by up to the time-delay value. If time-delay=0, CSNA ignores length-delay and puts each frame into the channel I/O block for transmission to the host. Even with a time-delay=0, CSNA may still block frames while waiting for a previous channel I/O to complete.
length-delay	CSNA blocks SNA frames destined for VTAM when the current block reaches the length-delay value in size (bytes). This will increase the chance of using larger block sizes for CSNA channel I/O. SNA frames are blocked up to either time-delay milliseconds or until the block reaches the length-delay size, at which time CSNA starts the channel I/O. The length-delay is ignored if larger than the maxpiu value. It can be used to force CSNA blocking to generate smaller I/O blocks than specified by maxpiu. In general, however, larger blocks result in better channel throughput and efficiency. A value of zero causes the length-delay value to be ignored; blocking is then controlled by the maxpiu and time-delay parameters.
Blocks Transmitted	Number of channel I/O blocks sent to VTAM from this CSNA subchannel. The Blocks Transmitted value may be higher than the total blocks for the Txd by maxpiu, Txd by time-delay, and Txd by length-delay counters. This is due to NULL blocks (8 bytes each with no data) that CSNA transmits. The channel program used for LSA traffic consists of a write/read CCW chain. When VTAM has data for CSNA it sends it with the write CCW. When the chained read CCW is executed CSNA will respond with any pending inbound data. If CSNA has no pending inbound data the read CCW is satisfied with an 8-byte header indicating no data.
Blocks Received	Number of channel I/O blocks received from VTAM by this CSNA subchannel.
SlowDowns Sent	Number of times CSNA put VTAM into a slow down (flow control) for this subchannel device.
SlowDowns Received	Number of times VTAM put CSNA into a slow down (flow control) for this subchannel.
Txd by maxpiu Blocks/Bytes	Number of channel I/O blocks and bytes transmitted to VTAM by this CSNA subchannel because the size of the channel I/O block reached the maxpiu value configured for this subchannel.
Txd by time-delay Blocks/Bytes	Number of channel I/O blocks and bytes transmitted to VTAM by this CSNA subchannel because blocking time-delay configured for this subchannel expired.
Txd by length-delay Blocks/Bytes	Number of channel I/O blocks and bytes transmitted to VTAM by this CSNA subchannel because blocking length-delay configured for this subchannel was reached.

Related Commands

Command Description

csna

Configures SNA support on a CMCC physical channel interface and specifies the path and device/subchannel on a physical channel of the router to communicate with an attached mainframe.

Command	Description
csna	Configures SNA support on a CMCC physical channel interface and specifies the path and device/subchannel on a physical channel of the router to communicate with an attached mainframe.

show extended channel tg

To display configuration, operational information, and statistics information for CMPC or CMPC+ transmission groups configured on the specified CMCC adapter's virtual interface, use the show extended channel tg EXEC command.

show extended channel slot/port tg [oper | stats] [detailed] [tg-name]

Syntax Description

slot

Slot number.

port

Port number.

oper

(Optional) Operational parameters for the CMPC or CMPC+ transmission group values.

stats

(Optional) Statistical values for the CMPC or CMPC+ transmission group.

detailed

(Optional) Additional information about the CMPC or CMPC+ transmission group.

tg-name

(Optional) Name of the transmission group.

slot	Slot number.
port	Port number.
oper	(Optional) Operational parameters for the CMPC or CMPC+ transmission group values.
stats	(Optional) Statistical values for the CMPC or CMPC+ transmission group.
detailed	(Optional) Additional information about the CMPC or CMPC+ transmission group.
tg-name	(Optional) Name of the transmission group.

Command Modes

EXEC

Command History

Release Modification

11.3

This command was introduced.

12.0(3)T

Support for the CMPC+ feature was added.

Release	Modification
11.3	This command was introduced.
12.0(3)T	Support for the CMPC+ feature was added.

Usage Guidelines

The show extended channel tg command is valid only on the virtual channel interface. If tg-name argument is not specified, information about all TGs configured on the specified interface is displayed.

If neither the oper or stats arguments are specified, operational values are displayed.

Examples

The following is sample output from the show extended channel tg oper command for a CMPC transmission group:

Router# show extended channel 3/2 tg oper detailed MVS2-TG1
 
CMPC-TG: MVS2-TG1 Status: ACTIVE
   Adapter:token    1  RMAC:4000.4040.1996         LSAP:04         RSAP:04
   TGN    :21          Local CP: NETA.MVS2         Remote CP: NETA.CALEB
   MaxIn  :4105        MaxOut  :4105
   HPR    :NO          HPR LSAP:04                 HPR RSAP :00
   RIF    :0830.1FF1.0041.00A0
Connection LLC2 Information:
   t1-time   = 1000  tpf-time  = 1000  trej-time = 3200  tbusy-tim = 9600
   idle-time =60000  local-win =    7  recv-wind =    7  N2        =    8
   N1-Send   = 1033  N1-Rcv    = 1033  ack-delay =  100  ack-max   =    3
   Nw        =    0  Ww        =    7
   Last Ww Cause = other
   Connection Time: 00:00:00 UTC Jan 1 1970
   Last modified: 00:00:00 UTC Jan 1 1970

Table 29 describes the fields shown in the display.

Table 29: show extended channel tg oper Field Descriptions

Field Description

Status

Connection status of the CMPC transmission group. Valid values are:

Shutdown---CMCC virtual interface is shutdown. In this state, all nonconfigurable values will not be displayed and the LLC connection operational values displayed when the detailed argument is specified also are not displayed.

Inactive---CMPC transmission group is reset ready to activate.

LocatingRemoteLinkStation---Exploring network for configured CMPC transmission group peer.

RemoteLinkStationLocated---CMPC transmission group network peer found. Waiting for connection negotiation to start.

XID3Negotiation---XID negotiation in progress.

PendingActive---Connect station pending.

Active---CMPC transmission group connection active.

Adapter

Identifies the CMCC adapter's internal MAC adapter configured for this CMPC transmission group. The MAC address configured for this adapter is the local MAC address for the CMPC or CMPC+ transmission group LLC connection.

RMAC

Remote MAC address configured for the CMPC transmission group LLC connection.

LSAP

Local SAP configured for the CMPC transmission group LLC connection.

RSAP

Remote SAP configured for the CMPC transmission group LLC connection.

TGN

Transmission group number for this CMPC transmission group LLC connection. This value is extracted from the XID3 negotiation exchange.

Local CP

Control point name for VTAM. The name is extracted from XID3s received from VTAM.

Remote CP

Control point name for the remote node connected by this CMPC transmission group. The name is extracted from XID3 received from the remote node.

MaxIn

Maximum PIU the remote node is allowed to send to VTAM. The value is the max PIU field in the XID3s received from VTAM.

MaxOut

Maximum PIU VTAM is allowed to send to the remote node. The value is the lowest of the max PIU field in the XID3 received from the remote node, the LF (length field) size in the RIF and the CMCC virtual interface MTU size.

HPR

Valid values are YES and NO. If HPR is active on this CMPC transmission group, then the value will display YES.

HPR LSAP

Local SAP value used for HPR traffic. This value will be the same as the configured local SAP value.

HPR RSAP

Remote SAP value used for HPR traffic. This value is extracted from the XID3s during the connection negotiation between VTAM and the remote node.

RIF

Routing information field. If the CMPC transmission group LLC connection is established using source-route bridging, then the RIF used for the connection is displayed here.

Field	Description
Status	Connection status of the CMPC transmission group. Valid values are: Shutdown---CMCC virtual interface is shutdown. In this state, all nonconfigurable values will not be displayed and the LLC connection operational values displayed when the detailed argument is specified also are not displayed. Inactive---CMPC transmission group is reset ready to activate. LocatingRemoteLinkStation---Exploring network for configured CMPC transmission group peer. RemoteLinkStationLocated---CMPC transmission group network peer found. Waiting for connection negotiation to start. XID3Negotiation---XID negotiation in progress. PendingActive---Connect station pending. Active---CMPC transmission group connection active.
Adapter	Identifies the CMCC adapter's internal MAC adapter configured for this CMPC transmission group. The MAC address configured for this adapter is the local MAC address for the CMPC or CMPC+ transmission group LLC connection.
RMAC	Remote MAC address configured for the CMPC transmission group LLC connection.
LSAP	Local SAP configured for the CMPC transmission group LLC connection.
RSAP	Remote SAP configured for the CMPC transmission group LLC connection.
TGN	Transmission group number for this CMPC transmission group LLC connection. This value is extracted from the XID3 negotiation exchange.
Local CP	Control point name for VTAM. The name is extracted from XID3s received from VTAM.
Remote CP	Control point name for the remote node connected by this CMPC transmission group. The name is extracted from XID3 received from the remote node.
MaxIn	Maximum PIU the remote node is allowed to send to VTAM. The value is the max PIU field in the XID3s received from VTAM.
MaxOut	Maximum PIU VTAM is allowed to send to the remote node. The value is the lowest of the max PIU field in the XID3 received from the remote node, the LF (length field) size in the RIF and the CMCC virtual interface MTU size.
HPR	Valid values are YES and NO. If HPR is active on this CMPC transmission group, then the value will display YES.
HPR LSAP	Local SAP value used for HPR traffic. This value will be the same as the configured local SAP value.
HPR RSAP	Remote SAP value used for HPR traffic. This value is extracted from the XID3s during the connection negotiation between VTAM and the remote node.
RIF	Routing information field. If the CMPC transmission group LLC connection is established using source-route bridging, then the RIF used for the connection is displayed here.

The following is sample output on a Cisco 7500 router from the show extended channel tg stats command for a CMPC transmission group:

Router# show extended channel 3/2 tg stats detail MVS2-TG1
 
CMPC-TG:MVS2ISR1
  IFramesIn   :51             IFramesOut  :41
  IBytesIn    :4378           IBytesOut   :51803
  UIFramesIn  :0              UIFramesOut :0
  UIBytesIn   :0              UIBytesOut  :0
  TESTRspsIn  :1              TESTCmdsOut :1
  XIDCmdsIn   :3              XIDCmdsOut  :3
  XIDRspsIn   :0              XIDRspsOut  :0
  ConnectReqs :2              ConnectInds :0
  ConnectRsps :2              ConnectCnfms:0
  DISCReqs    :1              DISCInds    :0
  SweepReqsIn :0              SweepReqsOut:0
  SweepRspsIn :0              SweepRspsOut:0
  Wraps       :0
  LastSeqNoIn :9              LastSeqNoOut:7
  LastSeqNoFailureCause     : None
TimeSinceLastSeqNoFailure : never
  LLC2 Connection Statistics: 
 LAN Token  0 Adapter   1 4000.cdcd.cdcd
   Local SAP=04 Remote MAC=4000.4040.1996 Remote SAP=04
     LocalBusies    =          0  RemoteBusies   =          0
     IFramesIn      =         51  IFramesOut     =         41
     IOctetsIn      =       4378  IOctetsOut     =      51803
     SFramesIn      =          0  SFramesOut     =          0
     REJsIn         =          0  REJsOut        =          0
     RetransmitsOut =          0  WwCountChanges =          0

Table 30 describes the fields shown in the display.

Table 30: show extended channel tg stats Field Descriptions

Field Description

IFramesIn

Number of connection-oriented PIUs received by this CMPC transmission group from the remote network node.

IFramesOut

Number of connection-oriented PIUs sent by this CMPC transmission group to the remote network node.

UIFramesIn

Number of connectionless PIUs (HPR frames) received by this CMPC transmission group from the remote network node.

UIFramesOut

Number of connectionless PIUs (HPR frames) sent by this CMPC transmission group to the remote network node.

TestRspsIn

Number of TEST responses received for this CMPC transmission group.

TestCmdsOut

Number of TEST commands sent by this CMPC transmission group to the configured remote MAC address.

XidCmdsIn

Number of XID commands received for this CMPC transmission group.

XidCmdsOut

Number of XID commands sent by this CMPC transmission group.

XidRspsIn

Number of XID responses received for this CMPC transmission group.

XidRspsOut

Number of XID responses sent by this CMPC transmission group.

SweepReqsIn

Number of CMPC sweep requests received from VTAM on this CMPC transmission group.

SweepReqsOut

Number of CMPC sweep requests sent to VTAM on the CMPC transmission group.

SweepRspsIn

Number of CMPC responses received from VTAM on this CMPC transmission group.

SweepRspsOut

Number of CMPC responses sent to VTAM on this CMPC transmission group.

IBytesIn

Number of bytes for connection-oriented PIUs received by this CMPC transmission group from the remote network node.

IBytesOut

Number of bytes for connection-oriented PIUs sent by this CMPC transmission group to the remote network node.

UIBytesIn

Number of bytes for connectionless PIUs received by this CMPC transmission group from the remote network node.

UIBytesOut

Number of bytes for connectionless PIUs sent by this CMPC transmission group to the remote network node.

ConnectReqs

Number of connect requests received from the host by this CMPC transmission group.

ConnectInds

Number of connect indications sent to the host by this CMPC transmission group.

ConnectRsps

Number of connect responses received from the host by this CMPC transmission group.

ConnectCnfms

Number of connect confirms sent to the host by this CMPC transmission group.

DISCReqs

Number of disconnect requests received from the host by this CMPC transmission group.

DISCInds

Number of disconnect indications sent to the host by this CMPC transmission group.

Wraps

The number of times the sequence numbers wrapped for this CMPC transmission group.

LastSeqNoIn

The sequence number on the last CMPC data block sent to the host from this CMPC transmission group.

LastSeqNoOut

The sequence number on the last CMPC data block received from the host for this CMPC transmission group.

LastSeqNoFailureCause

The cause of the last sequence number failure for this CMPC transmission group. Valid values are as follows:

None---No sequence number failures have occurred on this CMPC transmission group since it was configured or the interface was last "no shut".

Block---The sequence number failure occurred on a MPC data block received from the host for this CMPC transmission group.

Sweep---The sequence number failure occurred on a sweep command received from the host for this CMPC transmission group.

TimeSinceLastSeqNoFailure

Time since the last CMPC sequence number failure for this CMPC transmission group. If there have been no failures, "never" is displayed.

Field	Description
IFramesIn	Number of connection-oriented PIUs received by this CMPC transmission group from the remote network node.
IFramesOut	Number of connection-oriented PIUs sent by this CMPC transmission group to the remote network node.
UIFramesIn	Number of connectionless PIUs (HPR frames) received by this CMPC transmission group from the remote network node.
UIFramesOut	Number of connectionless PIUs (HPR frames) sent by this CMPC transmission group to the remote network node.
TestRspsIn	Number of TEST responses received for this CMPC transmission group.
TestCmdsOut	Number of TEST commands sent by this CMPC transmission group to the configured remote MAC address.
XidCmdsIn	Number of XID commands received for this CMPC transmission group.
XidCmdsOut	Number of XID commands sent by this CMPC transmission group.
XidRspsIn	Number of XID responses received for this CMPC transmission group.
XidRspsOut	Number of XID responses sent by this CMPC transmission group.
SweepReqsIn	Number of CMPC sweep requests received from VTAM on this CMPC transmission group.
SweepReqsOut	Number of CMPC sweep requests sent to VTAM on the CMPC transmission group.
SweepRspsIn	Number of CMPC responses received from VTAM on this CMPC transmission group.
SweepRspsOut	Number of CMPC responses sent to VTAM on this CMPC transmission group.
IBytesIn	Number of bytes for connection-oriented PIUs received by this CMPC transmission group from the remote network node.
IBytesOut	Number of bytes for connection-oriented PIUs sent by this CMPC transmission group to the remote network node.
UIBytesIn	Number of bytes for connectionless PIUs received by this CMPC transmission group from the remote network node.
UIBytesOut	Number of bytes for connectionless PIUs sent by this CMPC transmission group to the remote network node.
ConnectReqs	Number of connect requests received from the host by this CMPC transmission group.
ConnectInds	Number of connect indications sent to the host by this CMPC transmission group.
ConnectRsps	Number of connect responses received from the host by this CMPC transmission group.
ConnectCnfms	Number of connect confirms sent to the host by this CMPC transmission group.
DISCReqs	Number of disconnect requests received from the host by this CMPC transmission group.
DISCInds	Number of disconnect indications sent to the host by this CMPC transmission group.
Wraps	The number of times the sequence numbers wrapped for this CMPC transmission group.
LastSeqNoIn	The sequence number on the last CMPC data block sent to the host from this CMPC transmission group.
LastSeqNoOut	The sequence number on the last CMPC data block received from the host for this CMPC transmission group.
LastSeqNoFailureCause	The cause of the last sequence number failure for this CMPC transmission group. Valid values are as follows: None---No sequence number failures have occurred on this CMPC transmission group since it was configured or the interface was last "no shut". Block---The sequence number failure occurred on a MPC data block received from the host for this CMPC transmission group. Sweep---The sequence number failure occurred on a sweep command received from the host for this CMPC transmission group.
TimeSinceLastSeqNoFailure	Time since the last CMPC sequence number failure for this CMPC transmission group. If there have been no failures, "never" is displayed.

The following is sample output on a Cisco 7500 router from the show extended channel tg stats command for a CMPC transmission group when the interface is shut down:

Router# show extended channel 3/2 tg stats detail MVS2-TG1
 
CIP LLC-TG:MVS2ISR1 -Statistics Not Available

The following is sample output from the show extended channel tg command for a CMPC+ transmission group:

CMPC-TG:MPCPTG2   Status:Active
  Local IP address:201.44.4.1                     Remote IP Address :201.44.4.2
 
  Connection Info: Type=TCP/IP
  Local VC Token  :0500109002                     Local Conn. Token :0500109003
  Remote VC Token :0500201002                     Remote Conn. Token:0500201002
  VC Status       :Active                         Connection Status :Active
 
CMPC-TG:MPCPTG3   Status:Active
  Local IP address:172.18.3.1                     Remote IP Address :172.18.3.2
 
  MPC+ Connection Info: Type=HSAS IP
  Local VC Token  :0500109002                     Local Conn. Token :0500109003
  Remote VC Token :0500201002                     Remote Conn. Token:0500201002
  VC Status       :Active                         Connection Status :PendingActive

Table 31 describes the fields shown in the display.

Table 31: show extended channel tg Field Descriptions

Field Description

Status

Connection status of the CMPC+ transmission group. Valid values are:

Shutdown---CMCC virtual interface is shut down. In this state, all nonconfigurable values will not be displayed and the connection operational values displayed when the detailed argument is specified also are not displayed.

Ready---CMCC virtual interface is operational.

Unknown---Unknown status.

Inactive---CMPC+ transmission group is reset ready to activate.

Active---CMPC+ transmission group connection active.

Local IP Address

IP address of the CMCC interface for this TG. This address matches the router's IP address configured on the corresponding TG statement.

Remote IP Address

IP address of the host for this TG. This address matches the host IP address configured on the corresponding TG statement.

Type

Valid IP connection types are:

TCP/IP---Indicates that the connection is via the TCP/IP stack.

HSAS IP---Indicates that the connection is via the HSAS stack.

Local VC Token

CMCC adapter's token for the virtual circuit.

Remote VC Token

Host's token for the virtual circuit.

VC Status

Valid states for the virtual circuit are:

Reset---Awaiting a connection request from the host or CMCC adapter.

Active---Virtual circuit active indication was received from the host and the CMCC adapter sent a virtual circuit active indication to the host. The virtual circuit is now ready to send and receive connection requests.

Local Conn Token

CMCC adapter's token for the MPC+ connection.

Remote Conn Token

Host's token for the MPC+ connection.

Connection Status

The valid states for a connection are:

Reset---Awaiting a connection request from the host or CMCC adapter.

ConnectionRequestSent---CMCC adapter sent a Connection Request to the host and is waiting a Connection Confirm from the host.

PendingActive---CMCC adapter is waiting for the host to enable traffic flow on the connection.

Active---Connection is active and both the CMCC adapter and the host have enabled traffic flow on the connection. At this point, the CMCC adapter has added a static route on the router for the host's IP address. Verify with the show ip route static command.

Field	Description
Status	Connection status of the CMPC+ transmission group. Valid values are: Shutdown---CMCC virtual interface is shut down. In this state, all nonconfigurable values will not be displayed and the connection operational values displayed when the detailed argument is specified also are not displayed. Ready---CMCC virtual interface is operational. Unknown---Unknown status. Inactive---CMPC+ transmission group is reset ready to activate. Active---CMPC+ transmission group connection active.
Local IP Address	IP address of the CMCC interface for this TG. This address matches the router's IP address configured on the corresponding TG statement.
Remote IP Address	IP address of the host for this TG. This address matches the host IP address configured on the corresponding TG statement.
Type	Valid IP connection types are: TCP/IP---Indicates that the connection is via the TCP/IP stack. HSAS IP---Indicates that the connection is via the HSAS stack.
Local VC Token	CMCC adapter's token for the virtual circuit.
Remote VC Token	Host's token for the virtual circuit.
VC Status	Valid states for the virtual circuit are: Reset---Awaiting a connection request from the host or CMCC adapter. Active---Virtual circuit active indication was received from the host and the CMCC adapter sent a virtual circuit active indication to the host. The virtual circuit is now ready to send and receive connection requests.
Local Conn Token	CMCC adapter's token for the MPC+ connection.
Remote Conn Token	Host's token for the MPC+ connection.
Connection Status	The valid states for a connection are: Reset---Awaiting a connection request from the host or CMCC adapter. ConnectionRequestSent---CMCC adapter sent a Connection Request to the host and is waiting a Connection Confirm from the host. PendingActive---CMCC adapter is waiting for the host to enable traffic flow on the connection. Active---Connection is active and both the CMCC adapter and the host have enabled traffic flow on the connection. At this point, the CMCC adapter has added a static route on the router for the host's IP address. Verify with the show ip route static command.

The following sample shows output on a CMCC adapter from the show extended channel tg stats command for a CMPC+ transmission group:

Router# show extended channel 3/2 tg stats MVS2-TG1
 
CMPC-TG:MPCPTG2
  PacketsIn     :       81361   PacketsOut     :       71369
  BytesIn       :  3874888438   BytesOut       :   377499994
  ConnNr        :           0   ConnNs         :           0
  SweepReqsIn   :           0   SweepReqsOut   :           0
  SweepRspsIn  :            0   SweepRspsOut   :           0
  Wraps         :           0
  LastSeqNoIn   :    56047093   LastSeqNoOut   :     6751136
  LastSeqNoFailureCause     : None
  TimeSinceLastSeqNoFailure : never
CMPC-TG:MPCPTG3
  PacketsIn      :       44361   PacketsOut     :       63369
  BytesIn        :  6834888438   ByteOuts       :   954539994
  ConnNr         :           0   ConnNs         :           0
    SweepReqsIn    :           0   SweepReqsOut   :           0
  SweepRspsIn    :           0   SweepRspsOut   :           0
  Wraps          :           0
  LastSeqNoIn    :     6274700   LastSeqNoOut   :     1829808
  LastSeqNoFailureCause     : None
  TimeSinceLastSeqNoFailure : never

Table 32 describes the fields shown in the display.

Table 32: show extended channel tg stats Field Descriptions

Field Description

PacketsIn

Number of packets sent to the host on this TG.

PacketsOut

Number of packets sent by the host on this TG.

BytesIn

Total byte count for all packets sent to the host on this TG.

BytesOut

Total byte count for all packets sent by the host on this TG.

ConnNr

Sequence number of the last MPC+ frame on this connection from the host. Because IP traffic is all connectionless, the value will always be zero.

ConnNs

Sequence number of the last MPC+ frame on this connection sent to the host. Because IP traffic is always connectionless, the value will always be zero.

SweepsReqsIn

Number of CMPC+ sweep requests received from the host on this CMPC+ TG.

SweepsReqsOut

Number of CMPC+ sweep requests sent to the host on the CMPC+ TG.

SweepsRspsIn

Number of CMPC+ sweep responses received from the host on the CMPC+ TG.

SweepsRspsOut

Number of CMPC+ responses sent to the host on this CMPC+ TG.

Wraps

Number of times the CMPC+ sequence number for this TG has wrapped on the write subchannel.

LastSeqNoIn

Last block sequence number sent on the read subchannel.

LastSeqNoOut

Last block sequence number received on the write subchannel.

Last SeqNoFailureCause

Valid values are:

None---No sequence number failures detected since the program started.

Block---Sequence number received in a data block on the write subchannel was not the expected sequence number.

Sweep---Sequence number received in a sweep message on the write subchannel was not the expected sequence number

TimeSinceLastSeqNoFailure

Number of seconds since the last sequence number failure.

Field	Description
PacketsIn	Number of packets sent to the host on this TG.
PacketsOut	Number of packets sent by the host on this TG.
BytesIn	Total byte count for all packets sent to the host on this TG.
BytesOut	Total byte count for all packets sent by the host on this TG.
ConnNr	Sequence number of the last MPC+ frame on this connection from the host. Because IP traffic is all connectionless, the value will always be zero.
ConnNs	Sequence number of the last MPC+ frame on this connection sent to the host. Because IP traffic is always connectionless, the value will always be zero.
SweepsReqsIn	Number of CMPC+ sweep requests received from the host on this CMPC+ TG.
SweepsReqsOut	Number of CMPC+ sweep requests sent to the host on the CMPC+ TG.
SweepsRspsIn	Number of CMPC+ sweep responses received from the host on the CMPC+ TG.
SweepsRspsOut	Number of CMPC+ responses sent to the host on this CMPC+ TG.
Wraps	Number of times the CMPC+ sequence number for this TG has wrapped on the write subchannel.
LastSeqNoIn	Last block sequence number sent on the read subchannel.
LastSeqNoOut	Last block sequence number received on the write subchannel.
Last SeqNoFailureCause	Valid values are: None---No sequence number failures detected since the program started. Block---Sequence number received in a data block on the write subchannel was not the expected sequence number. Sweep---Sequence number received in a sweep message on the write subchannel was not the expected sequence number
TimeSinceLastSeqNoFailure	Number of seconds since the last sequence number failure.

tg (CMPC)

To define LLC connection parameters for the CMPC transmission group, use the tg (CMPC) interface configuration command. Use the no form of this command to remove the specified transmission group from the configuration, which also deactivates the transmission group.

tg name llc token-adapter adapter-number lsap [rmac rmac] [rsap rsap]

no tg name

Syntax Description

name

Name of the CMPC transmission group. The maximum length of the name is eight characters. This must match the name specified on the cmpc statements.

llc

Specifies that this TG is connected to the LLC stack on the CMCC adapter card.

token-adapter

Internal adapter type on the CMCC adapter card. The currently supported type is token-adapter.

adapter-number

Internal adapter number on the CMCC adapter card, which is the same value specified in the adapter internal LAN configuration command.

lsap

Local SAP number, 04 to FC, in hexadecimal. The value must be even and should normally be a multiple of four. It must be unique within the internal adapter in that no other IEEE 802.2 clients of that adapter, in the router or in a host, can use the same SAP. The default value is 04.

rmac rmac

(Optional) Remote MAC address of the form xxxx.xxxx.xxxx in hexadecimal. If not specified, a loopback link to another SAP on the same internal LAN adapter is assumed.

rsap rsap

(Optional) Remote SAP address, 04 to FC in hexadecimal. The value for the rsap argument must be even and should be a multiple of 4, but this requirement is not enforced. The default value for the rsap argument is 04.

Defaults

The lsap and rsap values default to 04.

Command Modes

Interface configuration

Command History

Release Modification

11.3

This command was introduced.

Usage Guidelines

The tg (CMPC) command is valid only on the virtual channel interface. This command defines an LLC connection with a complete addressing 4-tuple. The lsap, rmac, and rsap arguments are specified explicitly by parameters. The lmac argument is the local MAC address of the adapter referred to by the type and adapter-number arguments.

To change any parameter of the tg (CMPC) command, the existing transmission group must be removed first by using the no tg command.

The no tg command removes the CMPC transmission group from the configuration. If the transmission group is used for a non-HPR connection, all sessions using the transmission group will be terminated immediately. If the transmission group is an HPR connection, all sessions using the transmission group will be terminated if no other HPR connection is available to the host.

Examples

The following example configures a transmission group name and includes values for the rmac and rsap arguments:

tg LAGUNAA  llc token-adapter 1  18 rmac 4000.0000.beef rsap 14

Related Commands

Command Description

adapter

Configures internal adapters.

lan

Configures an internal LAN on a CMCC adapter interface and enters internal LAN configuration mode.

tg (CMPC+)

To define connection parameters for the CMPC+ transmission group, use the tg (CMPC+) interface configuration command. Use the no form of this command to remove the specified transmission group from the configuration and deactivate the transmission group.

tg tg-name {ip | hsas-ip} host-ip-addr local-ip-addr broadcast

no tg name

Syntax Description

tg-name

Name of the CMPC+ transmission group. The maximum length of the name is eight characters. This name must match the name specified on the cmpc statements.

ip

Specifies that this transmission group is connected to the TCP/IP stack.

hsas-ip

Specifies that this transmission group is connected to the HSAS IP stack.

host-ip-addr

Specifies the IP address of the channel-attached host using this transmission group. A host may have more than one IP stack, therefore this is the IP address of the host IP stack as indicated by the HOME statement in the host TCP/IP profile. For HSAS, this address is the host address as indicated by the source-IP-address parameter of the oeifconfig command.

local-ip-addr

This address must match an IP address configured on the virtual interface. Specifies the IP address of the router to be used for this transmission group. This is the IP address of the router as indicated by the DEFAULTNET statement in the host TCP/IP profile. For HSAS, this address is the router IP address as indicated by the destination-IP-address parameter of the oeifconfig command.

broadcast

Enables the sending of routing updates to the host.

Command Modes

Interface configuration

Command History

Release Modification

12.0(3)T

This command was introduced.

Usage Guidelines

The tg (CMPC+) command is valid only on the CIP's virtual channel interface and the CPA's physical channel interface. This command defines either an IP connection or an HSAS IP connection.

To change any parameter of the tg (CMPC+) command, the existing transmission group must be removed first by using no tg name command. At a minimum, tg-name must be specified to avoid ambiguity.

The no tg command removes the CMPC+ transmission group from the configuration. All sessions using the transmission group are terminated immediately.

Examples

The following example configures a transmission group name for an HSAS stack configured with CMPC+:

interface Channel0/2
 ip address 80.12.165.1 255.255.255.0
 no ip redirects
 no ip directed-broadcast
 ip route-cache same-interface
 no ip mroute-cache
 no keepalive
 tg TG00 hsas-ip 80.12.165.2 80.12.165.1

The following example configures a transmission group name for an IP stack configured with CMPC+:

interface Channel0/2
 ip address 80.12.165.1 255.255.255.0
 no ip redirects
 no ip directed-broadcast
 ip route-cache same-interface
 no ip mroute-cache
 no keepalive
 tg TG00     ip 80.12.165.2 80.12.165.1

Related Commands

Command Description

cmpc

Configures a CMPC (or CMPC+) read subchannel and a CMPC (or CMPC+) write subchannel.

name	Name of the CMPC transmission group. The maximum length of the name is eight characters. This must match the name specified on the cmpc statements.
llc	Specifies that this TG is connected to the LLC stack on the CMCC adapter card.
token-adapter	Internal adapter type on the CMCC adapter card. The currently supported type is token-adapter.
adapter-number	Internal adapter number on the CMCC adapter card, which is the same value specified in the adapter internal LAN configuration command.
lsap	Local SAP number, 04 to FC, in hexadecimal. The value must be even and should normally be a multiple of four. It must be unique within the internal adapter in that no other IEEE 802.2 clients of that adapter, in the router or in a host, can use the same SAP. The default value is 04.
rmac rmac	(Optional) Remote MAC address of the form xxxx.xxxx.xxxx in hexadecimal. If not specified, a loopback link to another SAP on the same internal LAN adapter is assumed.
rsap rsap	(Optional) Remote SAP address, 04 to FC in hexadecimal. The value for the rsap argument must be even and should be a multiple of 4, but this requirement is not enforced. The default value for the rsap argument is 04.

tg-name	Name of the CMPC+ transmission group. The maximum length of the name is eight characters. This name must match the name specified on the cmpc statements.
ip	Specifies that this transmission group is connected to the TCP/IP stack.
hsas-ip	Specifies that this transmission group is connected to the HSAS IP stack.
host-ip-addr	Specifies the IP address of the channel-attached host using this transmission group. A host may have more than one IP stack, therefore this is the IP address of the host IP stack as indicated by the HOME statement in the host TCP/IP profile. For HSAS, this address is the host address as indicated by the source-IP-address parameter of the oeifconfig command.
local-ip-addr	This address must match an IP address configured on the virtual interface. Specifies the IP address of the router to be used for this transmission group. This is the IP address of the router as indicated by the DEFAULTNET statement in the host TCP/IP profile. For HSAS, this address is the router IP address as indicated by the destination-IP-address parameter of the oeifconfig command.
broadcast	Enables the sending of routing updates to the host.

Table of Contents

CMPC, CMPC+ and CSNA Commands