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Cisco IOS Release 12.0 Bridging and IBM Networking Command Reference
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About the Cisco IOS Software Documentation
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Using Cisco IOS Software
- Part 1: Bridging
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Part 2: IBM Networking
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Remote Source-Route Bridging Commands
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DLSw+ Commands
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Serial Tunnel and Block Serial Tunnel Commands
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LLC2 and SDLC Commands
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IBM Network Media Translation Commands
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DSPU and SNA Service Point Commands
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SNA Frame Relay Access Commands
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APPN Configuration Commands
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Cisco Database Connection Commands
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NCIA Server Configuration Commands
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Cisco Mainframe Channel Connection Commands
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Airline Product Set Commands
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- Part 3: Appendix
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Table Of Contents
Airline Product Set Configuration Commands
alps connection-type permanent
Airline Product Set Configuration Commands
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.
alps a1-map a2-map
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
Defaults
No values are predefined.
Command Modes
ALPS ASCU submode
Command History
Examples
The following example specifies the A1 identification as 40 and the A2 identification as 20:
alps a1-map 40 a2-map 20Related Commands
alps ascu
Use the alps ascu interface configuration command to specify a physical ASCU identity. Use the no form of this command to remove the ASCU from the interface and delete any messages queued for transmission to the ASCU or the network.
alps ascu id
no alps ascu id
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
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 4BRelated Commands
alps circuit
Use the alps circuit global configuration command to specify an ALPS circuit at the remote CPE across a TCP/IP connection. Use the no form of this command to remove the circuit definition from the configuration, send a close message on the ALPS circuit, and delete any queued messages for the circuit.
alps circuit name
no alps circuit name
Syntax Description
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
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 CKT1Related Commands
alps connection-type permanent
Use the alps connection-type permanent ALPS circuit submode command to specify that this circuit should be established when the circuit is enabled.
alps connection-type permanent [retry-timer]
no alps connection-type permanent [retry-timer]
Syntax Description
Defaults
The default is 30 seconds.
Command Modes
ALPS circuit submode
Command History
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 30Related Commands
alps default-ckt
Use the alps default-ckt ALPS ASCU submode command to specify the ALPS circuit that this ASCU uses.
alps default-ckt name
no alps default-ckt name
Syntax Description
Defaults
No values are predefined.
Command Modes
ALPS ASCU submode
Command History
Examples
The following example specifies that ALPS circuit to be used is CKT1:
alps default-ckt CKT1Related Commands
alps enable-alarms ascu
Use the alps enable-alarms ascu global configuration command at the remote CPE to enable alarms for the ALPS ASCUs. Use the no form of this command to disable alarms for the ALPS ASCUs.
alps enable-alarms ascu [interface id]
no alps enable-alarms ascu
Syntax Description
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
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 42Related Commands
alps enable-alarms circuit
Use the alps enable-alarms circuit global configuration command to enable alarms for the ALPS circuits. Use the no form of this command to remove the circuit definition from the configuration.
alps enable-alarms circuit [name]
no alps enable-alarms circuit [name]
Syntax Description
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
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 CKT1Related Commands
alps enable-alarms peer
Use the alps enable-alarms peer global configuration command to enable alarms for the ALPS peers. Use the no form of this command to remove the circuit definition from the configuration, send a close message on the ALPS circuit, and delete any queued messages for the circuit.
alps enable-alarms peer [ip-address]
no alps enable-alarms peer [ip-address]
Syntax Description
Defaults
No values are predefined.
Command Modes
Global configuration
Command History
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 172.22.0.91Related Commands
alps enable-ascu
Use the alps enable-ascu ALPS ASCU submode command to move the previously defined ASCU from the inactive poll list to the active poll list. This move results in the protocol handler polling the ASCU and rendering it ready for handling terminal traffic. Use the no form of this command to remove the ASCU from the active poll list to the inactive poll list. This action prevents the ASCU from being polled, rendering it not ready for handling terminal traffic.
alps enable-ascu
no alps enable-ascu
Syntax Description
This command has no arguments or keywords.
Defaults
No values are predefined.
Command Modes
ALPS ASCU submode
Command History
Examples
The following example moves the ASCU to the active poll list:
alps enable-ascuRelated Commands
alps enable-circuit
Use the alps enable-circuit ALPS circuit submode command to enable the circuit to be activated when data is received from an ASCU. Use the no form of this command to disable the circuit.
alps enable-circuit
no alps enable-circuit
Syntax Description
This command has no arguments or keywords.
Defaults
The circuit is disabled by default.
Command Modes
ALPS circuit submode
Command History
Examples
The following example specifies the circuit to be activated when data is received from an ASCU:
alps enable-circuitRelated Commands
alps error-display
Use the alps error-display ALPS ASCU submode command to specify where error messages about service availability or network problems are displayed. Use the no form of this command to return to the default values.
alps error-display number1 number2
no alps error-display number1 number2
Syntax Description
Defaults
The default terminal address for ALC is 0x72.
The default screen line for ALC is 0x20.
Command Modes
ALPS ASCU submode
Command History
Examples
The following example specifies that error messages are displayed at terminal address 6d, on screen line number 78:
alps error-display 6d 78Related Commands
alps host-hld host-link
Use the alps host-hld host-link interface configuration command to enable ALPS on the X.25 interface. Use the no form of this command to disable ALPS on the X.25 interface.
alps host-hld hld host-link number {{ax25 [damp-tmr value]} | {emtox x.121 [pseudo-conv]}} [life-tmr value] [reply-tmr value]
no alps host-hld hld host-link number {{ax25 [damp-tmr value]} | {emtox x.121}} [life-tmr value] [reply-tmr value]
Syntax Description
Defaults
The default damping timer value is 10 seconds.
The default no-reply timer value is 60 seconds.
Command Modes
Interface configuration
Command History
Related Commands
alps hostlink
Use the alps hostlink ALPS circuit submode command to specify information required to establish an X.25 virtual circuit at the central CPE. Use the no form of this command to remove the circuit definition from the configuration, send a close message on the ALPS circuit, and delete any queued messages for the circuit.
alps hostlink number {ax25 lcn | emtox x121-addr} [winout val1] [winin val2] [ops val3][ips val4]
no alps hostlink number {ax25 lcn | emtox x121-addr} [winout val1] [winin val2] [ops val3] [ips val4]
Syntax Description
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
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 3Related Commands
alps idle-timer
Use the alps idle-timer ALPS circuit submode command to specify (for dynamic circuits) the length of time that can elapse before an idle circuit is disabled. Use the no form of this command to return to the default idle-timer value.
alps idle-timer timer
no alps idle-timer timer
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
Examples
The following example specifies that an idle circuit is maintained for 90 seconds before it is disabled:
alps idle-timer 90Related Commands
alps keepalive
Use the alps keepalive global configuration command to enable TCP keepalives for ALPS TCP peer connections. A TCP keepalive request will be sent to the remote peer if the TCP connection to the remote peer is silent for a time period larger than the interval specified. The TCP connection to the ALPS host will be closed when a count equal to the retry count specified is missed consecutively. Use the no form of this command to disable keepalives for ALPS.
alps keepalive [interval time] [retry count]
no alps keepalive [interval time] [retry count]
Syntax Description
Defaults
The default keepalive interval is 30 seconds.
The default retry count is 3.
Command Modes
Global configuration
Command History
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 8Related Commands
alps lifetime-timer
Use the alps lifetime-timer ALPS circuit submode command to specify the maximum amount of time messages can be queued in the ALPS circuit queue awaiting transmission to the central CPE. Use the no form of this command to return to the default lifetime-timer value.
alps lifetime-timer timer
no alps lifetime-timer timer
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
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 3Related Commands
alps local-hld remote-hld
Use the alps local-hld remote-hld ALPS circuit submode command to specify the local and remote HLDs (in hexadecimal) to use for this ALPS circuit. Use the no form of this command to remove the definition from the configuration.
alps local-hld loc-hld remote-hld rem-hld
no alps local-hld loc-hld remote-hld rem-hld
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
Examples
The following example specifies the local HLD as 4b10 and the remote HLD as 5c00:
alps local-hld 4B10 remote-hld 5c00Related Commands
alps local-peer
Use the alps local-peer global configuration command to specify the IP address of the local peer. Use the no form of this command to remove all subsequent ALPS configuration commands from the router.
alps local-peer ip-address [promiscuous]
no alps local-peer ip-address [promiscuous]
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
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 promiscuousRelated Commands
alps max-msg-length
Use the alps max-msg-length ALPS ASCU submode command to specify maximum input message length. Use the no form of this command to return to the default maximum input message length.
alps max-msg-length value
no alps max-msg-length value
Syntax Description
Defaults
The default maximum input message length is 962 characters.
Command Modes
ALPS ASCU submode
Command History
Examples
The following example specifies that the maximum length of a message is 1000 characters:
alps max-msg-length 1000alps mpx
Use the alps mpx ALPS circuit submode command to specify the multiplexing and the ASCU identification header for this circuit. Use the no form of this command to remove the definition from the configuration.
alps mpx {group | single} hdr {a1a2 | none}
no alps mpx {group | single} hdr {a1a2 | none}
Syntax Description
Defaults
The default for multiplexing is group.
The default header is a1a2.
Command Modes
ALPS circuit submode
Command History
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.
alps n1
Use the alps n1 interface configuration command to specify the threshold of consecutive errors logged before an ASCU is declared down. Use the no form of this command to reassert the default number of consecutive errors before declaring an ASCU down.
alps n1 errors
no alps n1 errors
Syntax Description
Defaults
The default error count is 30 errors.
Command Modes
Interface configuration
Command History
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 1Related Commands
alps n2
Use the alps n2 interface configuration command to specify the number of polls that must be correctly replied to before an ASCU is declared up. Use the no form of this command to reassert the default number of polls that must be correctly replied before an ASCU is declared up.
alps n2 polls
no alps n2 polls
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
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 2Related Commands
alps poll-pause
Use the alps poll-pause interface configuration command to specify the minimum interval, in milliseconds, between initiations of the polling cycle. Use the no form of this command to revert to the default interval.
alps poll-pause msec
no alps poll-pause
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
Examples
The following example sets a 200-microsecond minimum interval between polls.
alps poll-pause 200Related Commands
alps primary-peer
Use the alps primary-peer ALPS circuit submode command to specify the primary TCP peer and, optionally, a backup TCP peer for this ALPS circuit. Use the no form of this command to remove the definition from the configuration.
alps primary-peer ip-addr [backup-peer ip-addr]
no alps primary-peer ip-addr [backup-peer ip-addr]
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
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 172.22.0.92Related Commands
alps remote-peer
Use the alps remote-peer global configuration command to specify the IP address of a peer connection to the partner CPE. Use the no form of this command to remove the definition from the configuration.
alps remote-peer ip-addr [dynamic [inact-timer]] [tcp-qlen [num]]
no alps remote-peer ip-addr [dynamic [inact-timer]] [tcp-qlen [num]]
Syntax Description
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
Usage Guidelines
Issuing the no alps remote-peer command causes the following to occur:
•
Destruction of the TCP connection
•
•
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 60Related Commands
alps retry-option
Use the alps retry-option ALPS ASCU submode command to configure the CPE to transmit a message to the ASCU when a message with a bad cycle check character (CCC) is received from an ASCU. Use the no form of this command to reassert the default action of no retry.
alps retry-option {resend | reenter}
no alps retry-option
Syntax Description
Defaults
The default retry option is no retry.
Command Modes
ALPS ASCU submode
Command History
Examples
The following example specifies that an indicator LED signals the ASCU to resend data:
alps retry-option resendRelated Commands
alps service-msg-interval
Use the alps service-msg-interval ALPS circuit submode command to specify the interval between transmission of a service message to an ASCU and transmission of a "PLEASE RETRY" message. Use the no form of this command to remove the definition from the configuration.
alps service-msg-interval seconds
no alps service-msg-interval seconds
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
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 3Related 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.
alps service-msg-list
Use the alps service-msg-list ALPS circuit submode command to define the service message list to be used for this circuit. Use the no form of this command to remove the list from the circuit configuration, thus issuing no service messages until another list is configured.
alps service-msg-list list
no alps service-msg-list list
Syntax Description
Defaults
No values are predefined.
Command Modes
ALPS circuit submode
Command History
Examples
The following example specifies that message list 1 is used for this circuit:
alps service-msg-list 1Related Commands
alps service-msg-list number
Use the alps service-msg-list number global configuration command to define the service message identity and its contents for a service message list. Use the no form of this command to remove a service message number from the service message list configuration.
alps service-msg-list list number number msg
no alps service-msg-list list number number msg
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
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."alps servlim
Use the alps servlim interface configuration command to specify the number of cycles of the active poll list to execute before polling the next ASCU on the inactive poll list. Use the no form of this command to reassert the default number of cycles through the normal (active) poll list allowed before the slow poll list is processed.
alps servlim polls
no alps servlim polls
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
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 5Related Commands
alps t1
Use the alps t1 interface configuration command to specify the timeout delay between polling and response. Use the no form of this command to reassert the default poll timeout value of 0.5 seconds.
alps t1 delay
no alps t1 delay
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
Examples
The following example specifies a .5-second time-out delay between polling and response:
alps t1 5Related Commands
alps t2
Use the alps t2 interface configuration command to specify the timeout delay between receipt of the first character of an I/P sequence solicited by a poll and receipt of a Go Ahead (GA) sequence. Use the no form of this command to reassert the default timeout value of 6 seconds.
alps t2 delay
no alps t2 delay
Syntax Description
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
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 8Related Commands
alps translate
Use the alps translate interface configuration command to map an X.121 address to an IP address of a remote peer. Use the no form of this command to remove mapping from the configuration.
alps translate x.121-addr ip-addr
no alps translate x.121-addr ip-addr
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
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* 172.22.0.90Related Commands
clear alps circuits
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
Examples
The following example clears the ALPS circuit named CKT1:
clear alps circuits name CKT1Related Commands
clear alps counters
Use the clear alps counters EXEC command to clear all counters relevant to the ALPS feature.
clear alps counters
Syntax Description
This command has no arguments or keywords.
Defaults
No values are predefined.
Command Modes
EXEC
Command History
Examples
The following example clears all counters for the ALPS feature:
clear alps countersRelated Commands
encapsulation alc
Use the encapsulation alc interface configuration command to specify that the P1024B Airline Control (ALC) protocol will be used on the serial interface. Use the no form of this command to remove ALC protocol handling from the serial interface, and return the default encapsulation (HDLC) to the interface.
encapsulation alc
no encapsulation alc
Syntax Description
This command has no arguments or keywords.
Defaults
No values are predefined.
Command Modes
Interface configuration
Command History
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 alcRelated Commands
show interfaces
Displays statistics for all interfaces configured on the router or access server.
show alps ascu
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
Examples
The following is sample output from the show alps ascu command:
Router# show alps ascuinterface dlc ia a1 a2 circuit pkt_tx pkt_rx state--------------------------------------------------------------------------------------Serial6 ALC 42 24 49 AX_CKT 105 105 UPSerial6 ALC 46 46 52 EM_CKT 0 0 UPThe following is sample output from the show alps ascu detail command:
Router# show alps ascu detailascu 42 on i/f Serial6, dlc = ALC, state = UPdefault-circuit = AX_CKT, a1 = 24, a2 = 49retry_option = resend, max_msg_len = 962err_disp_terminal = 0, err_disp_line = 0pkt_tx = 105, byte_tx = 1050, pkt_rx = 105, byte_rx = 1050ascu 46 on i/f Serial6, dlc = ALC, state = UPdefault-circuit = EM_CKT, a1 = 46, a2 = 52retry_option = reenter, max_msg_len = 962err_disp_terminal = 0, err_disp_line = 0pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0Related Commands
show alps circuits
Use the show alps circuits EXEC command to display 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.
show alps circuits [name name] [detail]
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
Examples
The following is sample output from the show alps circuits command:
Router# show alps circuitsname pri_peer curr_peer dlc state pkt_tx pkt_rx---------------------------------------------------------------------------------AX_CKT 172.18.3.141 172.18.3.141 AX25 OPEN 57 57EM_CKT 172.18.3.141 172.18.3.141 EMTOX OPEN 0 0The following is sample output from the show alps circuits detail command:
Router# show alps circuits detailAX_CKT: dlc = AX25, peer = 172.18.3.141, state = OPEN, uptime = 00:00:00i/f = Serial2, host_link = 1, host_hld = 700, remote_hld = 145lcn = 33, nonstd_240 = TRUEdamping_tmr = 10, lifetime_tmr = 4pkt_tx = 57, byte_tx = 1311, pkt_rx = 57, byte_rx = 1311src_corr = 5063224, dst_corr = 88D990drops_q_overflow = 0, drops_lifetime_exceeded = 0, drops_vc_reset = 0ascus: (24,49),EM_CKT: dlc = EMTOX, peer = 172.18.3.141, state = OPEN, uptime = 00:00:00i/f = Serial3, host_link = 3, host_hld = 1200, remote_hld = 145lcn = 1, host_x121 = 22233, remote_x121 = 44005damping_tmr = 0, lifetime_tmr = 4pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0src_corr = 502F220, dst_corr = 88DBF8drops_q_overflow = 0, drops_lifetime_exceeded = 0, drops_vc_reset = 0ascus: (46,52),The following is sample output from the show alps circuits command:
Router# show alps circuitsname pri_peer curr_peer dlc state pkt_tx pkt_rx---------------------------------------------------------------------------------AX_CKT 172.18.3.27 172.18.3.27 ALC OPEN 105 105EM_CKT 172.18.3.27 172.18.3.27 ALC OPEN 0 0The following is sample output from the show alps circuits detail command:
Router# show alps circuits detailAX_CKT: dlc = ALC, conn_type = DYN, state = OPEN, uptime = 00:00:00pri_peer = 172.18.3.27, sec_peer = 0.0.0.0, curr_peer = 172.18.3.27local_hld = 145, remote_hld = 700ax25: hostlink = 1, lcn = 33lifetime_tmr = 4, idle_tmr = 60, retry_tmr = 0pkt_tx = 105, byte_tx = 2415, pkt_rx = 105, byte_rx = 2415src_corr = 9A1760, dst_corr = 50333C8drops_q_overflow = 0, drops_ckt_disabled = 0drops_lifetime_tmr = 0, drops_invalid_ascu = 0ascus: (24,49),EM_CKT: dlc = ALC, conn_type = PERM, state = OPEN, uptime = 00:00:00pri_peer = 172.18.3.27, sec_peer = 0.0.0.0, curr_peer = 172.18.3.27local_hld = 145, remote_hld = 1200emtox: hostlink = 3, x121 = 44005lifetime_tmr = 4, idle_tmr = 60, retry_tmr = 10pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0src_corr = 9A18D4, dst_corr = 8FB520drops_q_overflow = 0, drops_ckt_disabled = 0drops_lifetime_tmr = 0, drops_invalid_ascu = 0ascus: (46,52),Related Commands
show alps peers
To display the status of the ALPS remote peers, use the show alps peers command in privileged EXEC mode.
show alps peers [ipaddress addr] [detail]
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
Usage Guidelines
If an IP address is specified, then only the status of that peer will be displayed; otherwise, the status of all peers will be displayed.
Examples
The following is sample output from the show alps peers command:
Router# show alps peerslocal_peer : ip_address = 172.18.3.141ip_address type create state pkt_tx pkt_rx--------------------------------------------------------------------------------------172.18.3.27 PERM LEARN OPENED 1 1The following is sample output from the show alps peers detail command:
Router# show alps peers detaillocal_peer : ip_address = 172.18.3.141TCP: 172.18.3.27, type = PERM, create = ADMIN, state = OPENED, uptime = 00:08:21pkt_tx = 0, byte_tx = 0, pkt_rx = 0, byte_rx = 0drops_giants = 0, drops_q_overflow = 0, drops_peer_down = 0, drops_ver_mismatch = 0active_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.