Configuring Interface Types

This chapter describes how to explicitly configure ATM network interface types, rather than depending on ILMI auto-configuration (which senses the peer interface type and configures the LightStream 1010 ATM switch interface appropriately).

The network configuration modifications described in this chapter are used to explicitly specify your ATM network operation. Because the LightStream 1010 offers true plug-and-play operation, most users may not need to perform any of these procedures. In some cases however, the auto-configuration of interfaces may not be desired.

The LightStream 1010 ATM Switch Command Reference publication provides the complete syntax for every switch configuration command and describes the no form of each command.

Description of Example Network

The example network shown in Figure 8-1 is used to describe some standard ATM interface configuration tasks you might want to perform after completing the tasks described in the chapter "Initially Configuring the LightStream 1010 ATM Switch."

Figure 8-1: Example Network Configuration

The network configuration shown in Figure 8-1 is an example of a corporate campus ATM backbone network connecting three buildings with an ATM connection across the wide area network (WAN) to a remote sales office.

The following examples describe a hypothetical task involved in configuration of the network shown in Figure 8-1:

Example Format

The configuration examples in this chapter use the following format:

Description of the network connection to be modified.
Rationale for modification.
Task list describing the task and the commands used. See the LightStream 1010 ATM Switch Software Configuration Guide for additional task tables used to modify and monitor the switch.
Description of syntax used with the command. See the LightStream 1010 ATM Switch Software Command Reference publication for a complete description of all commands used to modify and monitor the switch.
Example of command(s) used to modify initial configuration.
Description and example of the commands used to confirm modification.

Disabling Auto-configuration

Auto-configuration is the feature that determines the type of interface every time an interface comes up initially.

Rationale:

The auto-configuration feature must be disabled on some interfaces prior to configuring some interface connections, such as user-to-network interface (UNI) connections.

To configure autolink on an interface use the following EXEC commands. Use the no form of the auto-configuration command to disable auto-configuration:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal.	configure¹ [terminal]
Select the interface to be configured.	interface atm card/sub_card/port [.vpt #]
Shutdown the interface.	shutdown
Disable auto-configuration on the interface.	no atm auto-configuration
Re-enable the interface.	no shutdown

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

Example

The following example shuts down ATM interface 1/0/0, disables auto-configuration, then re-enables the interface:

Switch(config)#interface atm 1/0/0
Switch(config-if)#shutdown
Switch(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/1/3, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface ATM1/0/0, changed state to down
%LINK-5-CHANGED: Interface ATM1/0/0, changed state to administratively down
%LINK-5-CHANGED: Interface ATM0/1/3, changed state to going down
%LINK-3-UPDOWN: Interface ATM0/1/3, changed state to down
Switch(config-if)#no atm auto-configuration
% Please 'shut/no shut' this interface for this command to take effect.
Switch(config-if)#no shutdown
Switch(config-if)#
%LINK-5-CHANGED: Interface ATM1/0/0, changed state to going down
%LINK-3-UPDOWN: Interface ATM0/1/3, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/1/3, changed state to up
%LINK-3-UPDOWN: Interface ATM1/0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface ATM1/0/0, changed state to up
Switch(config-if)#^Z
Switch#
%SYS-5-CONFIG_I: Configured from console by console
Switch#

Display Auto-configuration

To show the interface auto-configuration use the following command:

Task	Command
Show the ATM switch configuration.	show atm interface atm card/sub_card/port

Example:

The following example displays the auto-configuration status of ATM interface 1/0/0 as disabled:


atm interface atm 1/0/0
Interface:      ATM1/0/0        Port-type:    oc3suni
IF Status:      UP              Admin Status: up
Auto-config:    disabled        AutoCfgState: not applicable
IF-Side:        Network         IF-type:      NNI
Uni-type:       not applicable  Uni-version:  not applicable
Max-VPI-bits:   8               Max-VCI-bits: 14
Max-VP:         255             Max-VC:       16383
Svc Upc Intent: pass            Signalling:   Enabled
ATM Address for Soft VC: 47.0091.8100.0000.0040.0b0a.2b81.4000.0c80.8000.00
Configured virtual links:
  PVCLs SoftVCLs   SVCLs   PVPLs SoftVPLs   SVPLs  Total-Cfgd  Installed-Conns
      3        0       0       0        0       0           3                3
Logical ports(VP-tunnels):     0
Input cells:    234663          Output cells: 235483
5 minute input rate:             0 bits/sec,       0 cells/sec
5 minute output rate:            0 bits/sec,       0 cells/sec
Input AAL5 pkts: 153211, Output AAL5 pkts: 153626, AAL5 crc errors: 0
Switch#

Configuring UNI Interface Connections

The UNI specification defines communications between ATM endstations (such as workstations and routers) and ATM switches in private ATM networks.

To configure a UNI interface connection between the switch LS1010-2 (HB-1) in the headquarters building to one of the end-station servers in the same building use the atm uni command in interface configuration mode. See Figure 8-2 for a detail of this type of network connection.

Figure 8-2: Multiple Link UNI Example

To configure the UNI interface connection, use the following EXEC commands. Use the no form of these commands to disable the UNI interface:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal.	configure¹ [terminal]
Select the interface to be configured.	interface atm card/sub_card/port
Shutdown the interface.	shutdown
Disable auto-configuration on the interface.	no atm auto-configuration
Configure the ATM UNI interface.	atm uni { side [ network \| user ] \| type [ private \| public ] \| version [ 3.0 \| 3.1 \| 4.0 ]}
Re-enable the interface.	no shutdown

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

Syntax Description:

side--network or user side
type--public or private
version--UNI Version 3.0, 3.1, or 4.0

Example

The following example shuts down ATM interface 0/1/0, disables auto-configuration, configures the UNI side as user, type private, version as 4.0, and re-enables the interface:

LS1010-2(HB-1)(config)# interface atm 0/1/0
LS1010-2(HB-1)(config-if)#shutdown
%LINK-5-CHANGED: Interface ATM0/1/0, changed state to administratively down
LS1010-2(HB-1)(config-if)#no atm auto-configuration
% Please 'shut/no shut' this interface for this command to take effect.
LS1010-2(HB-1)(config-if)#atm uni side user type private version 4.0
LS1010-2(HB-1)(config-if)#no shutdown
%LINK-5-CHANGED: Interface ATM0/1/0, changed state to going down
%SYS-5-CONFIG_I: Configured from console by console
%LINK-3-UPDOWN: Interface ATM0/1/0, changed state to up
LS1010-2(HB-1)#^Z

Display ATM Interface UNI Configuration

To show the ATM interface UNI configuration, use the following command:

Task	Command
Show the ATM switch configuration.	show atm interface atm card/sub_card/port

Example

The following example displays the ATM interface 0/1/0 UNI configuration:

LS1010-2(HB-1)#show atm interface atm 0/1/0
Interface:      ATM0/1/0        Port-type:    oc3suni
IF Status:      UP              Admin Status: up
Auto-config:    disabled        AutoCfgState: not applicable
IF-Side:        User            IF-type:      UNI
Uni-type:       Private         Uni-version:  V4.0
Max-VPI-bits:   8               Max-VCI-bits: 14
Max-VP:         255             Max-VC:       16383
Svc Upc Intent: pass            Signalling:   Enabled
ATM Address for Soft VC: 47.0091.8100.0000.0040.0b0a.2b81.4000.0c80.8000.00
Configured virtual links:
  PVCLs SoftVCLs   SVCLs   PVPLs SoftVPLs   SVPLs  Total-Cfgd  Installed-Conns
      2        0       0       0        0       0           2                2
Logical ports(VP-tunnels):     0
Input cells:    234810          Output cells: 235618
5 minute input rate:             0 bits/sec,       0 cells/sec
5 minute output rate:            0 bits/sec,       0 cells/sec
Input AAL5 pkts: 153296, Output AAL5 pkts: 153712, AAL5 crc errors: 0
LS1010-2(HB-1)#

Configuring NNI Interface Connections

This section describes configuring a network-to-network interface (NNI) connection between two switches. See Figure 8-4 for an example of this type of network configuration.

The following section describes configuring the private NNI interface from switch LS1010-1(HB-1) in the headquarters building to the switch LS1010(EB-1) in the engineering building. Figure 8-3 is a detail of the example network segment being configured.

Figure 8-3: Private NNI Interface Example

Rationale

Private NNI connections must be configured between the ATM switches to allow for route discovery and topology analysis between the switches.

Following are the task lists and an example of the commands used to configure the private NNI interface in the example shown in Figure 8-5.

atm nni Interface Command Description

To configure the PNNI interface, use the following EXEC commands. Use the no form of these commands to disable the PNNI interface:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal.	configure¹ [terminal]
Select the interface to be configured.	interface atm card/sub_card/port
Shutdown the interface.	shutdown
Disable auto-configuration on the interface.	no atm auto-configuration
Configure the ATM NNI interface.	atm nni
Re-enable the interface.	no shutdown

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

Example:

The following example shuts down ATM interface 3/0/0, disables auto-configuration, configures the interface as an NNI, and re-enables the interface:

LS1010-1(HB-1)#config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
LS1010-1(HB-1)(config)#interface atm 3/0/0
LS1010-1(HB-1)(config-if)#shutdown
LS1010-1(HB-1)(config-if)#no atm auto-configuration
% Please 'shut/no shut' this interface for this command to take effect.
LS1010-1(HB-1)(config-if)#atm nni
LS1010-1(HB-1)(config-if)#no shutdown
LS1010-1(HB-1)(config-if)#
%LINK-5-CHANGED: Interface ATM3/0/0, changed state to going down
%LINK-3-UPDOWN: Interface ATM3/0/0, changed state to down
LS1010-1(HB-1)(config-if)#^Z
LS1010-1(HB-1)#

Display NNI Interface Configuration

To show the ATM interface NNI configuration use the following command:

Task	Command
Show the ATM switch configuration.	show atm interface atm card/sub_card/port

Example:

The following example displays the configuration of the NNI interface 3/0/0 on the switch LS1010-1(HB-1) located in the Headquarters building:

LS1010-1(HB-1)# show atm interface atm 3/0/0 
Interface:      ATM3/0/0        Port-type:    oc3suni
IF Status:      UP              Admin Status: up
Auto-config:    disabled        AutoCfgState: not applicable
IF-Side:        Network         IF-type:      NNI
Uni-type:       not applicable  Uni-version:  not applicable
Max-VPI-bits:   8               Max-VCI-bits: 14
Max-VP:         255             Max-VC:       16383
Svc Upc Intent: pass            Signalling:   Enabled
ATM Address for Soft VC: 47.0091.8100.0000.0040.0b0a.2b81.4000.0c80.8000.00
Configured virtual links:
  PVCLs SoftVCLs   SVCLs   PVPLs SoftVPLs   SVPLs  Total-Cfgd  Installed-Conns
      3        0       0       0        0       0           3                3
Logical ports(VP-tunnels):     0
Input cells:    234911          Output cells: 235695
5 minute input rate:             0 bits/sec,       0 cells/sec
5 minute output rate:            0 bits/sec,       0 cells/sec
Input AAL5 pkts: 153346, Output AAL5 pkts: 153764, AAL5 crc errors: 0
LS1010-1(HB-1)#

Configuring IISP Interface Connections

This section describes configuring the Interim Interswitch Signaling Protocol (IISP) interface from switch LS1010 (SB-1), in the remote sales office building to the switch LS1010 (SB-1) in the same building. See Figure 8-4 for an example of this type of network configuration.

Figure 8-4: IISP Network Segment Example

Rationale

The some ATM switch does not support the PNNI protocol and requires that the connection between the switches be manually configured as IISP.

Following are the task lists and an example of the commands used to configure the interfaces in the example:

atm iisp Command Description

To configure an IISP interface, use the following EXEC commands. Use the no form of this command to disable the IISP interface:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal	configure¹ [terminal]
Select the interface to be configured	interface atm card/sub_card/port[.sub_inter #]
Shut down the interface	shutdown
Disable autolink determination	no atm auto-configuration
Configure IISP on the interface	atm iisp side {user \| network}
Reenable the interface	no shutdown
Exit interface configuration mode.	ex
Configure the ATM route address prefix	atm route prefix atm-address-prefix
Exit interface configuration mode	exit

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

Syntax Description

side = specify if this is a user or network side connection.

atm-address-prefix--13 bytes of ATM address prefix.

Example

The following example configures switch LS1010(SB-1) located in the remote sales building at interface 3/0/0 with the following:

no auto-configuration
IISP
side as user
sets the ATM route address prefix as 47.0091.8100.0000.0000.0ca7.ce01

LS1010(SB-1)#config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
LS1010(SB-1)(config)#interface atm 3/0/0
LS1010(SB-1)(config-if)#shutdown
LS1010(SB-1)(config-if)#no atm auto-configuration
% Please 'shut/no shut' this interface for this command to take effect.
LS1010(SB-1)(config-if)#atm iisp side user
LS1010(SB-1)(config-if)#no shutdown
LS1010(SB-1)(config-if)#
%LINK-5-CHANGED: Interface ATM3/0/0, changed state to going down
%LINK-3-UPDOWN: Interface ATM3/0/0, changed state to down
LS1010(SB-1)(config-if)#ex
LS1010(SB-1)(config)#atm route 47.0091.8100.0000.0000.0ca7.ce01 atm 3/0/0
LS1010(SB-1)(config)#^Z
LS1010(SB-1)#
%SYS-5-CONFIG_I: Configured from console by console
LS1010(SB-1)#

Display IISP Configuration Example

To show the interface IISP configuration use the following command:

Task	Command
Show the interface	show atm interface atm card/sub_card/port

Example

The following example displays the configuration of the switch LS1010(SB-1) located in the remote sales building at interface 3/0/0:

LS1010(SB-1)#show atm interface atm 3/0/0
Interface:      ATM3/0/0        Port-type:    oc3suni
IF Status:      DOWN            Admin Status: down
Auto-config:    disabled        AutoCfgState: not applicable
IF-Side:        User            IF-type:      IISP
Uni-type:       not applicable  Uni-version:  V3.0
Max-VPI-bits:   8               Max-VCI-bits: 14
Max-VP:         255             Max-VC:       16383
Svc Upc Intent: pass            Signalling:   Enabled
ATM Address for Soft VC: 47.0091.8100.0000.0040.0b0a.2b81.4000.0c81.8000.00
Configured virtual links:
  PVCLs SoftVCLs   SVCLs   PVPLs SoftVPLs   SVPLs  Total-Cfgd  Installed-Conns
      2        0       0       0        0       0           2                0
Logical ports(VP-tunnels):     0
Input cells:    0               Output cells: 0
5 minute input rate:             0 bits/sec,       0 cells/sec
5 minute output rate:            0 bits/sec,       0 cells/sec
Input AAL5 pkts: 0, Output AAL5 pkts: 0, AAL5 crc errors: 0
LS1010(SB-1)#

Configuring a Public Network Tunnel Interface

This section describes configuring the DS-3 public User-Network Interface (UNI) ATM connection as a VP tunnel from the headquarters building across the WAN to the remote sales office.

Note A VP tunnel is configured as a VP of a particular service category. Only VCs of that service category can transit the tunnel.

See Figure 8-5 for a detail of the example network being configured.

Figure 8-5: Public VP Tunnel Network Example

Rationale

Public DS-3 carriers can interconnect switches via permanent VPs across their networks. To support signaling across the public network between switch LS1010-1(HB-1) in the headquarters building and the remote sales office switch LS1010(SB-1) a VP tunnel must be configured.

Note The steps listed for creating a tunnel need to be completed on the LightStream 1010 ATM switches at both ends of the intervening (public) network and the VPT numbers on both ends must match.

Following is the task list and an example of the commands used to configure the public DS-3 UNI connections in the example:

atm pvp and VP Tunnel Command Description

To configure a VP tunnel connection, use the following EXEC commands. Use the no form of this command to disable the VP tunnel connection:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal.	configure¹ [terminal]
Optionally, configure the connection-traffic-table-row index for any non-default index values.	atm connection-traffic-table-row [index row-index] cbr peak-cell-rate rate [tolerance cell-count]
Select the physical interface to be configured.	interface atm card/sub_card/port
Configure an interface PVP leg.	atm pvp vpi [cast-type type] [rx-cttr index] [tx-cttr index]
Change to configuration mode.	exit
Create a VP tunnel using a VPT number which matches the PVP leg VPI.	interface atm card/sub_card/port.vpt #

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

Syntax Descriptions

vpi--The ATM network VPI to use for this VP in the range of 1 through 255

cast-type --p2p | p2mp-root | p2mp-leaf (default = p2p)

rx-cttr (connection-traffic-table-row index)--should be configured before using this command

tx-cttr (connection-traffic-table-row index)--should be configured before using this command

Note The row index for no-default rx-cttr and tx-cttr must be configured before using this optional parameter. See the atm connection-traffic-table-row command in the LightStream 1010 ATM Switch Command Reference publication for a detailed description.

Note To create a VP tunnel, the vpi number of the PVP leg and vpt number of the VP tunnel must be the same.

Examples

The following examples configure the ATM VP tunnel on the switch LS1010-1 (HB-1) located in the headquarters building at interface 1/0/0, VPI 99 to switch LS1010 (SB-1) located in the remote sales office at interface 4/0/0, VPI 99:

LS1010-1(HB-1)#config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
LS1010-1(HB-1)(config)#interface atm 1/0/0
LS1010-1(HB-1)(config-if)#atm pvp 99
LS1010-1(HB-1)(config-if)#ex
LS1010-1(HB-1)(config)#interface atm 1/0/0.99
LS1010-1(HB-1)(config-subif)#end
LS1010-1(HB-1)#
%SYS-5-CONFIG_I: Configured from console by console
LS1010-1(HB-1)#

The following examples configure the ATM VP tunnel on the switch LS1010 (SB-1), located in the remote sales office at interface 4/0/0, VPI 99:

LS1010(SB-1)#config terminal
Enter configuration commands, one per line.  End with CNTL/Z.
LS1010(SB-1)(config)#interface atm 4/0/0
LS1010(SB-1)(config-if)#atm pvp 99
LS1010(SB-1)(config-if)#ex
LS1010(SB-1)(config)#interface atm 4/0/0.99
LS1010(SB-1)(config-subif)#end
LS1010(SB-1)#
%SYS-5-CONFIG_I: Configured from console by console
LS1010(SB-1)#

Using show atm interface to Display Virtual Path Tunnel

To show the ATM virtual interface configuration use the following command:

Task	Command
Show the ATM interface configuration.	show atm interface [atm card/sub_card/port[.vpt #]]

Example

The following example displays the configuration of the switch LS1010-1(HB-1), located in the headquarters building at subinterface 1/0/0.99:

LS1010-1(HB-1)#show atm interface atm 1/0/0.99
Interface:      ATM1/0/0.99     Port-type:    vp tunnel
IF Status:      UP              Admin Status: up
Auto-config:    enabled         AutoCfgState: waiting for response from peer
IF-Side:        Network         IF-type:      UNI
Uni-type:       Private         Uni-version:  V3.0
Max-VPI-bits:   0               Max-VCI-bits: 14
Max-VP:         0               Max-VC:       16383
Signalling:     Enabled
ATM Address for Soft VC: 47.0091.8100.0000.0040.0b0a.2b81.4000.0c80.8000.63
Configured virtual links:
  PVCLs SoftVCLs   SVCLs  Total-Cfgd  Installed-Conns
      4        0       0           4                4
LS1010-1(HB-1)#

Deleting Virtual Path Tunnels

To delete a VP tunnel connection use the following EXEC commands with the no form:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal	configure¹ [terminal]
Delete the subinterface	no interface atm card/sub_card/port[.vpt #]
Select the physical interface to be modified	interface atm card/sub_card/port
Delete interface PVP half-leg.	no atm pvp vpi
Change to configuration mode	exit

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

Examples

The following example deletes the subinterface connection 99 at ATM interface 1/0/0 and the deletes the PVP half-leg 99:

LS1010-1(HB-1)#config terminal
%SYS-5-CONFIG_I: Configured from console by console
Enter configuration commands, one per line.  End with CNTL/Z.
LS1010-1(HB-1)(config)#no interface atm 1/0/0.99
LS1010-1(HB-1)(config)#interface atm 1/0/0
LS1010-1(HB-1)(config-if)#no atm pvp 99
LS1010-1(HB-1)(config-if)#

Using show atm interface to Display Virtual Path Deletion

To confirm the ATM virtual interface deletion use the following command:

Task	Command
Show the ATM interface configuration.	show atm interface [atm card/sub_card/port[.vpt #]]

Example

The following example confirms the deletion of ATM subinterface 1/0/0.99 on the switch LS1010-1(HB-1), located in the headquarters building:

LS1010-1(HB-1)#show interface atm 1/0/0
Interface:      ATM1/0/0        Port-type:    oc3suni
IF Status:      UP              Admin Status: up
Auto-config:    enabled         AutoCfgState: completed
IF-Side:        Network         IF-type:      NNI
Uni-type:       not applicable  Uni-version:  not applicable
Max-VPI-bits:   8               Max-VCI-bits: 14
Max-VP:         255             Max-VC:       16383
Svc Upc Intent: pass            Signalling:   Enabled
ATM Address for Soft VC: 47.0091.8100.0000.0040.0b0a.2b81.4000.0c80.8000.00
Configured virtual links:
  PVCLs SoftVCLs   SVCLs   PVPLs SoftVPLs   SVPLs  Total-Cfgd  Installed-Conns
      3        0       0       0        0       0           3                3
Logical ports(VP-tunnels):     0
Input cells:    233651          Output cells: 234465
5 minute input rate:             0 bits/sec,       0 cells/sec
5 minute output rate:            0 bits/sec,       0 cells/sec
Input AAL5 pkts: 152555, Output AAL5 pkts: 152967, AAL5 crc errors: 0
LS1010-1(HB-1)#

Configuring a PVC to a VP Tunnel

To configure an end-point of a PVC to a previously created PVP tunnel, use the following EXEC commands using the no form of this command to disable:

Task	Command
At the privileged EXEC prompt, enter configuration mode from the terminal	configure¹ [terminal]
Select the physical interface to be configured	interface atm card/sub_card/port
Configure the PVC with the VPI of the tunnel leg matching the tunnel VPT number.	atm pvc vpi vci [upc upc] [pd pd] [rx-cttr index] [tx-cttr index] interface atm card/subcard/port[.vpt #] vpi vci [upc upc]

¹ This command is documented in the LightStream 1010 ATM Switch Command Reference publication.

The following restrictions must be apply to an end-point of a PVC to a PVP tunnel subinterface:

The VPI number of the tunnel leg of any PVC connection must match the VPT number of the tunnel.
The service class, for example, CBR, VBR, UBR, as specified by the connection-traffic-table-row (CTTR) of any PVC connections must match the service class for the row(s) selected for the tunnel PVP.
For service classes other than UBR and ABR, the peak cell rates of all PVCs must be within the peak cell rate of the tunnel PVP. This will require new CTTR rows to be defined for CBR or VBR PVCs, with peak cell rates which are less than the intended tunnel PVP.

Example

The following example configures the example tunnel ATM1/0/0.99 with a UBR PVC from interface ATM 0/0/1 to the tunnel at ATM interface 1/0/0.99:

LS1010-1(HB-1)#configure t
Enter configuration commands, one per line.  End with CNTL/Z.
LS1010-1(HB-1)(config)#interface atm 0/0/1
LS1010-1(HB-1)(config-if)#atm pvc 0 50 interface atm 1/0/0.99 99 40
LS1010-1(HB-1)(config-if)#end
LS1010-1(HB-1)#

Using show atm vc interface to Display Permanent Virtual Circuit

To confirm the ATM virtual circuit interface configuration use the following command:

Task	Command
Show the ATM VC interface configuration.	show atm vc interface atm card/sub_card/port

Example

The following example confirms the configuration of ATM subinterface 1/0/0.99 on the switch LS1010-1(HB-1) located in the headquarters building:

LS1010-1(HB-1)#show atm vc interface atm 0/0/1
Interface    VPI   VCI   Type    X-Interface  X-VPI X-VCI  Encap Status
ATM0/0/1     0     5      PVC     ATM2/0/0     0     41    QSAAL  UP
ATM0/0/1     0     16     PVC     ATM2/0/0     0     33    ILMI   UP
ATM0/0/1     0     50     PVC     ATM1/0/0.99  99    40           UP
LS1010-1(HB-1)#

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