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Use the commands in this chapter to configure and monitor the Airline Product Set. For Airline Product Set configuration information and examples, refer to the "Configuring the Airline Product Set" chapter in the Bridging and IBM Networking Configuration Guide.
Use the alps a1-map a2-map ALPS ASCU submode command to specify the A1 and A2 logical ASCU identification information.
alps a1-map a1-value a2-map a2-value
Syntax Description
a1-value A1 logical ASCU identification. A hexadecimal number in the range 0x00 to 0x7F, except 0x10, 0x16, and 0x17. a2-value A2 logical ASCU identification. A hexadecimal number in the range 0x00, 0x10, 0x16, 0x17, 0x40, 0x50, 0x51, 0x52, and 0x53.
Defaults
No values are predefined.
Command Modes
ALPS ASCU submode
Command History
11.3 T This command was introduced.
Release
Modification
Examples
The following example specifies the A1 identification as 40 and the A2 identification as 20:
alps a1-map 40 a2-map 20
Related Commands
Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
id ASCU interchange address. Valid range is between 41 and 7E, except 43, 44, 47, 50 to 57, 60, 64, and 7B.
Defaults
No values are predefined.
Command Modes
Interface configuration
Command History
11.3 T This command was introduced.
Release
Modification
Usage Guidelines
If an ASCU already exists on the interface, the alps ascu command initiates the ALPS ASCU submode for that ASCU. If the ASCU does not exist, an ASCU is created and the ALPS ASCU submode is initiated.
Examples
The following example specifies the interchange address as 4B:
alps ascu 4B
Related Commands
Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
name Name given to identify an ALPS circuit.
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
11.3 T This command was introduced.
Release
Modification
Usage Guidelines
Entering this command causes a circuit control block to be created. the command also initiates the ALPS circuit submode. If the circuit already exists, the only action is the initiation of the ALPS circuit submode.
Note that this command is used to statically create an ALPS circuit at the remote CPE. ALPS X.25 circuits (at the central CPE) are always dynamically created and are never created using this command.
Examples
The following example specifies the name of the ALPS circuit at the remote CPE as CKT1:
alps circuit CKT1
Related Commands
Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
retry-timer (Optional) Specifies the maximum interval between consecutive attempts to establish a circuit in the event of a failure. The default for retry-timer is 30 seconds and the range is 1 to 180 seconds.
Defaults
The default is 30 seconds.
Command Modes
ALPS circuit submode
Command History
11.3 T This command was introduced.
Release
Modification
Examples
The following example specifies that the circuit is established when enabled and that the CPE will retry the connection every 30 seconds in the event of a failure:
alps connection-type permanent 30
Related Commands
Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Use the alps default-ckt ALPS ASCU submode command to specify the ALPS circuit that this ASCU uses.
alps default-ckt name
Syntax Description
name Name given to identify an ALPS circuit on the remote CPE.
Defaults
No values are predefined.
Command Modes
ALPS ASCU submode
Command History
11.2 T This command was introduced.
Release
Modification
Examples
The following example specifies that ALPS circuit to be used is CKT1:
alps default-ckt CKT1
Related Commands
Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
interface id (Optional) ASCU identifier. Enable alarms for the specified ASCU.
Defaults
If no interface and interchange address combination is specified, then alarms (SYSLOG messages and SNMP traps) are enabled for all ALPS ASCUs.
Command Modes
Global configuration
Command History
11.3 T This command was introduced.
Release
Modification
Usage Guidelines
If an interface and interchange address combination is specified, then the alarms are enabled only for the ASCU matching that combination. Up to eight alps enable-alarms ascu commands can be entered to allow a set of ALPS ASCUs to be monitored. ALPS ASCU alarms are only generated at the remote CPE.
Examples
The following example enables alarms for ALPS ASCU 42 on serial interface 1:
alps enable-alarms ascu Serial1 42
Related Commands
Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
name (Optional) Name given to identify an ALPS circuit on the remote CPE.
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
If a valid circuit name is specified, then the alarms are enabled only for the circuit matching the name. Up to eight alps enable-alarms circuit commands can be entered to allow a subset of ALPS circuits to be monitored. ALPS circuit alarms are generated at both the remote (ALC) CPE and the central (X.25) CPE.
Examples
The following example enables alarms for the ALPS circuit named CKT1:
alps enable alarms circuit CKT1
Related Commands
Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
ip-address (Optional) IP address of the remote peer for which alarms are enabled.
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
If an IP address is specified, then the alarms are enabled only for the remote peer matching the IP address. Up to eight alps enable-alarms peer commands can be entered to allow a set of ALPS peers to be monitored. ALPS peer alarms are generated at both the remote and the central CPE.
Examples
The following example enables alarms for the ALPS peer at IP address 172.22.0.91:
alps enable alarms peer 172.22.0.91
Related Commands
Displays the status of the ALPS remote peers. If an IP address is specified, than only the status of that peer will be displayed; otherwise, the status of all peers will be displayed.
Command
Description
Syntax Description
This command has no arguments or keywords.
Defaults
No values are predefined.
Command Modes
ALPS ASCU submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example moves the ASCU to the active poll list:
alps enable-ascu
Related Commands
Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
This command has no arguments or keywords.
Defaults
The circuit is disabled by default.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies the circuit to be activated when data is received from an ASCU:
alps enable-circuit
Related Commands
Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
number1 For ALC, specifies the terminal address where these service messages are to be sent. Valid numbers are hexadecimal numbers in the range 0x40 to 0x7F. The default address is 0x72. number2 For ALC, specifies the screen line number where service messages are to be displayed. Valid numbers are hexadecimal numbers in the range 0x40 to 0x7F. The default screen line number is 0x66.
Defaults
The default terminal address for ALC is 0x72.
The default screen line for ALC is 0x20.
Command Modes
ALPS ASCU submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies that error messages are displayed at terminal address 6d, on screen line number 78:
alps error-display 6d 78
Related Commands
Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
hld Host high-level designator. A hexadecimal number in the range1 to 7f7f. num Host-link identifier. A number in the range 1 to 255. ax25 Specifies airline X.25 implementation of X.25. damp-tmr value (Optional) Specifies the AX.25 PVC damping timer. The value argument is the length of time that a PVC can be inactive before it is destroyed and the corresponding ALPS circuits are closed. The default is 10 seconds. emtox Specifies EMTOX implementation of X.25. x.121 X.121 address of the EMTOX host (called address on calls to the EMTOX host). pseudo-conv (Optional) Specifies the pseudo-conversational format of emtox packets. life-tmr value Specifies the maximum amount of time (in seconds) that a message may be queued for transmission to the host X.25 system before it is discarded. The value argument is time (in seconds).
Defaults
The default damping timer value is 10 seconds.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example enables ALPS on an X.25 interface, using the airline X.25 implementation:
alps host-hld 4B10 host-link 3 ax25
Related Commands
encapsulation x25 Specifies operation of a serial interface as an X.25 device.
Command
Description
Syntax Description
number Interface at the host CPE. Decimal number in the range 1 to 255. ax25 Specifies airline X.25 implementation of X.25. lcn Local channel number for AX.25 connections. emtox Specifies EMTOX implementation of X.25. x121-addr X.121 address for EMTOX connections.This is the X.121 calling address for X.25 call packets sent from the central CPE to the EMTOX host. winout val1 (Optional) Specifies the X.25 transmit window The val1 argument is a decimal number in the range 1 to 7. winin val2 (Optional) Specifies the X.25 receive window. The val2 argument is a decimal number in the range 1 to 7. ops val3 (Optional) Specifies the maximum output packet size. The val3 argument is one of the following numbers: 128, 240, 256, 512, 1024, 2048, or 4096. ips val4 (Optional) Specifies the maximum input packet size. The val4 argument is one of the following numbers: 128, 240, 256, 512, 1024, 2048, or 4096.
Defaults
If no values are specified, the default values at the X.25-attached central CPE are used.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example establishes an X.25 virtual circuit at the central CPE. The configuration specifies airline X.25 implementation. The host CPE interface is 3, the local channel number for airline X.25 connections is 120, and the X.25 transmit window is 3.
alps hostlink 3 ax25 120 winout 3 winin 3
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
timer Length of time that can elapse before an idle circuit is brought down. The range is 10 to 600 seconds. The default is 60 seconds.
Defaults
The default length of time that can elapse before an idle circuit is brought down is 60 seconds.
Command Modes
ALPS circuit submode
Command History
11.3 T This command was introduced.
Release
Modification
Examples
The following example specifies that an idle circuit is maintained for 90 seconds before it is disabled:
alps idle-timer 90
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
interval time (Optional) Interval for keepalive requests. The time argument is the keepalive interval, in the range of 10 to 300 seconds. The default is 30 seconds. retry count (Optional) Indicates how many times keepalive requests will be sent before the connection is closed. The count argument is the retry count, in the range 1 to 10. The default is 3 retries.
Defaults
The default keepalive interval is 30 seconds.
The default retry count is 3.
Command Modes
Global configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies that a TCP keepalive request will be sent to the remote peer if the TCP peer connection is idle for 60 seconds. The connection will be closed after 3 consecutive keepalive requests are sent.
alps keepalive interval 60 retry 8
Related Commands
Specifies the IP address of the local peer.
Command
Description
Syntax Description
timer Length of time, in seconds, that a message can be queued. The range is 1 to 20 seconds. The default is 4 seconds.
Defaults
The default length of time that a message can be queued in the ALPS circuit queue is 4 seconds.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
Messages that exceed the timer limit are discarded.
Examples
The following example specifies that a message remains in the ALPS circuit queue for no longer than 3 seconds:
alps lifetime-timer 3
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
loc-hld Local HLD to use for ALPS circuit. Hexadecimal number in the range 1 to FFFF. rem-hld Remote HLD to use for ALPS circuit. Hexadecimal number in the range 1 to FFFF.
Defaults
No values are predefined.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies the local HLD as 4b10 and the remote HLD as 5c00:
alps local-hld 4B10 remote-hld 5c00
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Syntax Description
ip-address IP address of the local peer. promiscuous (Optional) Keyword specified at the central CPE to accept incoming TCP connections from any remote CPE.
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies the local peer IP address as 172.22.0.91 and specifies that the CPE accepts incoming TCP connections from any CPE:
alps local-peer 172.22.0.91 promiscuous
Related Commands
Displays the status of the ALPS remote peers. If an IP address is specified, than only the status of that peer will be displayed; otherwise, the status of all peers will be displayed.
Command
Description
Syntax Description
value Maximum input message length. The range is 1 to 3840. The default is 962 characters.
Defaults
The default maximum input message length is 962 characters.
Command Modes
ALPS ASCU submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies that the maximum length of a message is 1000 characters:
alps max-msg-length 1000
Syntax Description
group Specifies that multiple ASCUs will be multiplexed on the ALPS circuit. single Specifies that only one ASCU will use this circuit. hdr Specifies the ASCU identification header for the circuit. a1a2 ASCU identification via A1, A2. none No ASCU identification.
Defaults
The default for multiplexing is group.
The default header is a1a2.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
If alps mpx group is specified, multiple ASCUs will be multiplexed on this ALPS circuit and the none option is not applicable. If alps mpx single is specified, then only one ASCU uses this ALPS circuit. If alps mpx single hdr none is specified, the A1 and A2 ASCU identification information is not added to the front of data frames sent across this circuit, and it is assumed that it does not exist in frames received on this circuit. The exclusion of ASCU identification should only be specified when the EMTOX protocol is used.
Syntax Description
errors Error count limit. The valid range is 1 to 30 errors. The default is 30 errors.
Defaults
The default error count is 30 errors.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
The error count limit is a threshold value. If the ASCU state is UP and the error count threshold is exceeded, the ASCU state changes to DOWN and it is moved to the inactive poll. If alarms are enabled for the ASCU, a SYSLOG message is displayed and an SNMP notification is sent to the SNMP network management station.
Examples
The following example specifies that an ASCU is declared down when the error count exceeds 1:
alps n1 1
Related Commands
Specifies a physical ASCU identity. Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
polls Number of polls that must be correctly replied to. The valid range is 1 to 30 polls. The default is 1 poll.
Defaults
The default number of polls that must be correctly replied to is 1.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
If the ASCU state is DOWN and the reply threshold is exceeded, the ASCU state changes to UP and the ASCU is moved to the active poll list. If alarms are enabled for the ASCU, a SYSLOG message is displayed and an SNMP notification is sent to the SNMP management station.
Examples
The following example specifies that 2 polls must be correctly replied to before the ASCU is declared up:
alps n2 2
Related Commands
Specifies a physical ASCU identity. Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
msec Minimum interval between polls, in microseconds.The valid range is 10 to 1000 microseconds. The default interval is 50 microseconds.
Defaults
The default minimum interval is 50 microseconds.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example sets a 200-microsecond minimum interval between polls.
alps poll-pause 200
Related Commands
Specifies a physical ASCU identity.
Command
Description
Syntax Description
ip-addr IP address specified in the alps remote-peer command. backup-peer (Optional) Backup TCP peer for the ALPS circuit. ip-addr IP address specified in the alps remote-peer command.
Defaults
No values are predefined.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies a primary peer at IP address 172.22.0.91 and a backup peer at IP address 172.22.0.92:
alps primary-peer 172.22.0.91 backup-peer 172.22.0.92
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Displays the status of the ALPS remote peers. If an IP address is specified, than only the status of that peer will be displayed; otherwise, the status of all peers will be displayed.
Command
Description
Syntax Description
ip-addr IP address of the peer. dynamic (Optional) Allows the TCP connection to the host peer to be opened only when there is data to be transferred to the host reservation system. inact-timer (Optional) Length of inactivity, in seconds, after which the connection is closed. The range is 10 to 300 seconds. The default is 60 seconds. tcp-qlen (Optional) Specifies a default number of packets in the queue. num (Optional) Number of packets allowed in the queue. The range is 26 to 100 packets. The default is 50 packets.
Defaults
The default is length of inactivity is 60 seconds.
The default number of packets in the queue is 50.
Command Modes
Global configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
Issuing the no alps remote-peer command causes the following to occur:
Examples
The following example specifies a peer connection at IP address 172.22.0.92 and allows the TCP connection to be opened only when there is data to be transferred:
alps remote-peer 172.22.0.92 dynamic 60
Related Commands
Specifies the IP address of the local peer. Displays the status of the ALPS remote peers. If an IP address is specified, than only the status of that peer will be displayed; otherwise, the status of all peers will be displayed.
Command
Description
Syntax Description
resend Specify the retry option as resend. This option causes an indicator LED to signal the operator at the ASCU to resend data. reenter Specify the retry option as reenter. This option causes a service message to signal the operator at the ASCU to reenter data.
Defaults
The default retry option is no retry.
Command Modes
ALPS ASCU submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies that an indicator LED signals the ASCU to resend data:
alps retry-option resend
Related Commands
Specifies a physical ASCU identity. Displays the status of the ALPS ASCU.
Command
Description
Syntax Description
seconds Interval, in seconds, between consecutive transmissions of service messages from the remote CPE to the ASCU. The range is 1 to 20 seconds. The default interval is 4 seconds.
Defaults
The default interval between consecutive transmissions of service messages from the remote CPE to the ASCU is 4 seconds.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
The "PLEASE RETRY" message is transmitted only to ASCUs that use circuits with a dynamic connection type.
Examples
The following example specifies an interval of 3 seconds between transmission of service messages from the CPE to the ASCU:
alps service-msg-interval 3
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Defines the service message list to be used for this circuit.
Command
Description
Syntax Description
list The service message list to be used for this circuit. The valid numbers are 1 to 8.
Defaults
No values are predefined.
Command Modes
ALPS circuit submode
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies that message list 1 is used for this circuit:
alps service-msg-list 1
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Specifies the interval between transmission of a service message to an ASCU and transmission of a PLEASE RETRY message.
Command
Description
Syntax Description
list The service message list to be used for this circuit. The valid numbers are 1 to 8 number Specify a list number. number List number. Valid numbers are 1 to 8. msg Contents of a service message.
Defaults
The default service message is used if no service message list number is specified.
Command Modes
Global configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies the text of message list 1, message number 2:
alps service-msg-list 1 number 2 "Turn off the terminal NOW."
Syntax Description
polls Number of polls of the ASCU UP list. The valid range is 1 to 30 polls. The default is 30 polls.
Defaults
The default number of polls of the ASCU UP list allowed between two successive polls of the ASCU DOWN list is 30 polls.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies that 5 polls of the ASCU UP list are allowed between 2 successive polls of the ASCU DOWN list.
alps servlim 5
Related Commands
Specifies the threshold of consecutive errors logged before an ASCU is declared down. Specifies the number of polls that must be correctly replied to before an ASCU is declared up. Specifies the timeout delay between polling and response. Specifies the timeout delay between receipt of the first character of an I/P sequence solicited by a poll and receipt of a GA sequence.
Command
Description
Syntax Description
delay Timeout delay, in seconds, between polling and response. The valid range is 1 to 10 tenths of a second (.1 to 1 second). The default is 5 tenths of a second (.5 second).
Defaults
The default timeout delay between polling and response is 5 tenths of a second (.5 second).
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies a .5-second time-out delay between polling and response:
alps t1 5
Related Commands
Specifies the threshold of consecutive errors logged before an ASCU is declared down. Specifies the number of polls that must be correctly replied to before an ASCU is declared up. Specifies the number of cycles of the active poll list to execute before polling the next ASCU on the inactive poll list. Specifies the timeout delay between receipt of the first character of an I/P sequence solicited by a poll and receipt of a GA sequence.
Command
Description
Syntax Description
delay Timeout delay, in seconds, between receipt of first character of an I/P sequence solicited by a poll and receipt of Go Ahead (GA) sequence. The valid range is 1 to 10 seconds. The default is 6 seconds.
Defaults
The default timeout delay between receipt of first character of an I/P sequence solicited by a poll and receipt of Go Ahead (GA) sequence is 6 seconds.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example specifies a timeout delay of 8 seconds between receipt of the first character of an I/P sequence solicited by a poll and receipt of a Go Ahead sequence:
alps t2 8
Related Commands
Specifies the threshold of consecutive errors logged before an ASCU is declared down. Specifies the number of polls that must be correctly replied to before an ASCU is declared up. Specifies the number of cycles of the active poll list to execute before polling the next ASCU on the inactive poll list. Specifies the timeout delay between polling and response.
Command
Description
Syntax Description
x.121-addr X.121 address to be mapped to an IP address of a remote peer. ip-addr IP address of the remote peer.
Defaults
No values are predefined.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
The X.121 address is compared to the Called Address on inbound X.25 call packets to determine if the call should be accepted. The X.121 address may have an asterisk (*) at the end to indicate "all X.121 addresses prefixed with the address before the *".
Examples
The following example maps all X.121 addresses prefixed with the address 88845 to the remote peer IP address 172.22.0.90:
alps translate 88845* 172.22.0.90
Related Commands
encapsulation x25 Specifies operation of a serial interface as an X.25 device.
Command
Description
Use the clear alps circuits EXEC command to remove configured ALPS circuits.
clear alps circuits [ipaddr address | name string]
Syntax Description
ipaddr address (Optional) Clear ALPS circuits for peer with specified IP address. name string (Optional) Clear ALPS circuits for peer with specified name.
Defaults
If no IP address or name is specified, the command clears all ALPS circuits.
Command Modes
EXEC
Command History
11.3 This command was introduced.
Release
Modification
Examples
The following example clears the ALPS circuit named CKT1:
clear alps circuits name CKT1
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection. Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed.
Command
Description
Use the clear alps counters EXEC command to clear all counters relevant to the ALPS feature.
clear alps countersSyntax Description
This command has no arguments or keywords.
Defaults
No values are predefined.
Command Modes
EXEC
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following example clears all counters for the ALPS feature:
clear alps counters
Related Commands
Displays the status of the ALPS ASCU. Displays the status of the ALPS circuits. If a circuit name is specified, than only the status of that circuit will be displayed; otherwise, the status of all circuits will be displayed. Displays the status of the ALPS remote peers. If an IP address is specified, than only the status of that peer will be displayed; otherwise, the status of all peers will be displayed.
Command
Description
Syntax Description
This command has no arguments or keywords.
Defaults
No values are predefined.
Command Modes
Interface configuration
Command History
11.3T This command was introduced.
Release
Modification
Usage Guidelines
The encapsulation alc command causes any ASCU configuration to be removed from the interface. As each ASCU defined on the interface is removed it is also unlinked from the ASCU circuit it belongs to. All data frames queued for transmission to the ASCU are destroyed.
This encapsulation command must be entered prior to any ASCU configuration. Note that all timer and counter values are applicable to all ASCUs on the interface.
Examples
The following example specifies that the ALC protocol is used:
encapsulation alc
Related Commands
show interfaces Displays statistics for all interfaces configured on the router or access server.
Command
Description
Use the show alps ascu EXEC command to display the status of the ALPS ASCU.
show alps ascu [interface id] [detail]
Syntax Description
interface id (Optional) Combined interface and interchange address. If specified, only the status of that ASCU is displayed. detail (Optional) Long display of output.
Command Modes
EXEC
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following is sample output from the show alps ascu command:
Router# show alps ascu interface dlc ia a1 a2 circuit pkt_tx pkt_rx state -------------------------------------------------------------------------------------- Serial6 ALC 42 24 49 AX_CKT 105 105 UP Serial6 ALC 46 46 52 EM_CKT 0 0 UP
The following is sample output from the show alps ascu detail command:
Router# show alps ascu detail ascu 42 on i/f Serial6, dlc = ALC, state = UP default-circuit = AX_CKT, a1 = 24, a2 = 49 retry_option = resend, max_msg_len = 962 err_disp_terminal = 0, err_disp_line = 0 pkt_tx = 105, byte_tx = 1050, pkt_rx = 105, byte_rx = 1050 ascu 46 on i/f Serial6, dlc = ALC, state = UP default-circuit = EM_CKT, a1 = 46, a2 = 52 retry_option = reenter, max_msg_len = 962 err_disp_terminal = 0, err_disp_line = 0 pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0
Related Commands
Specifies a physical ASCU identity.
Command
Description
Syntax Description
name name (Optional) If specified, only the status of that circuit is displayed. detail (Optional) Long display of output.
Command Modes
EXEC
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following is sample output from the show alps circuits command:
Router# show alps circuits name pri_peer curr_peer dlc state pkt_tx pkt_rx --------------------------------------------------------------------------------- AX_CKT 172.18.3.141 172.18.3.141 AX25 OPEN 57 57 EM_CKT 172.18.3.141 172.18.3.141 EMTOX OPEN 0 0
The following is sample output from the show alps circuits detail command:
Router# show alps circuits detail AX_CKT: dlc = AX25, peer = 172.18.3.141, state = OPEN, uptime = 00:00:00 i/f = Serial2, host_link = 1, host_hld = 700, remote_hld = 145 lcn = 33, nonstd_240 = TRUE damping_tmr = 10, lifetime_tmr = 4 pkt_tx = 57, byte_tx = 1311, pkt_rx = 57, byte_rx = 1311 src_corr = 5063224, dst_corr = 88D990 drops_q_overflow = 0, drops_lifetime_exceeded = 0, drops_vc_reset = 0 ascus: (24,49), EM_CKT: dlc = EMTOX, peer = 172.18.3.141, state = OPEN, uptime = 00:00:00 i/f = Serial3, host_link = 3, host_hld = 1200, remote_hld = 145 lcn = 1, host_x121 = 22233, remote_x121 = 44005 damping_tmr = 0, lifetime_tmr = 4 pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0 src_corr = 502F220, dst_corr = 88DBF8 drops_q_overflow = 0, drops_lifetime_exceeded = 0, drops_vc_reset = 0 ascus: (46,52),
The following is sample output from the show alps circuits command:
Router# show alps circuits name pri_peer curr_peer dlc state pkt_tx pkt_rx --------------------------------------------------------------------------------- AX_CKT 172.18.3.27 172.18.3.27 ALC OPEN 105 105 EM_CKT 172.18.3.27 172.18.3.27 ALC OPEN 0 0
The following is sample output from the show alps circuits detail command:
Router# show alps circuits detail AX_CKT: dlc = ALC, conn_type = DYN, state = OPEN, uptime = 00:00:00 pri_peer = 172.18.3.27, sec_peer = 0.0.0.0, curr_peer = 172.18.3.27 local_hld = 145, remote_hld = 700 ax25: hostlink = 1, lcn = 33 lifetime_tmr = 4, idle_tmr = 60, retry_tmr = 0 pkt_tx = 105, byte_tx = 2415, pkt_rx = 105, byte_rx = 2415 src_corr = 9A1760, dst_corr = 50333C8 drops_q_overflow = 0, drops_ckt_disabled = 0 drops_lifetime_tmr = 0, drops_invalid_ascu = 0 ascus: (24,49), EM_CKT: dlc = ALC, conn_type = PERM, state = OPEN, uptime = 00:00:00 pri_peer = 172.18.3.27, sec_peer = 0.0.0.0, curr_peer = 172.18.3.27 local_hld = 145, remote_hld = 1200 emtox: hostlink = 3, x121 = 44005 lifetime_tmr = 4, idle_tmr = 60, retry_tmr = 10 pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0 src_corr = 9A18D4, dst_corr = 8FB520 drops_q_overflow = 0, drops_ckt_disabled = 0 drops_lifetime_tmr = 0, drops_invalid_ascu = 0 ascus: (46,52),
Related Commands
Specifies an ALPS circuit at the remote CPE across a TCP/IP connection.
Command
Description
Syntax Description
ipaddress addr If specified, only the status of that circuit is displayed. detail (Optional) Long display of output.
Command Modes
EXEC
Command History
11.3T This command was introduced.
Release
Modification
Examples
The following is sample output from the show alps peers command:
Router# show alps peers local_peer : ip_address = 172.18.3.141 ip_address type create state pkt_tx pkt_rx -------------------------------------------------------------------------------------- 172.18.3.27 PERM LEARN OPENED 1 1
The following is sample output from the show alps peers detail command:
Router# show alps peers detail local_peer : ip_address = 172.18.3.141 TCP: 172.18.3.27, type = PERM, create = ADMIN, state = OPENED, uptime = 00:08:21 pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0 drops_giants = 0, drops_q_overflow = 0, drops_peer_down = 0, drops_ver_mismatch = 0 active_ckts: CKT1, CKT2
Related Commands
Specifies the primary TCP peer and, optionally, a backup TCP peer for this ALPS circuit. Specifies the IP address of a peer connection to the partner CPE.
Command
Description
Posted: Wed Aug 23 07:03:46 PDT 2000
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