show aps
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
Description
Display information about Automatic Protection Switching (APS) for SONET configurations and about Multiplex Section Protection (MSP) for SDH configurations.
Options
none | — | (Same as brief) Display brief information about APS or MSP for all groups and SONET/SDH interfaces. |
brief | detail | extensive | summary | — | (Optional) Display the specified level of output. |
group group | — | (Optional) Display APS or MSP information for the specified group. |
interface so-fpc/pic/port | — | (Optional) Display APS information for the specified SONET/SDH interface. |
Required Privilege Level
view
List of Sample Output
show apsshow aps brief
show aps detail
show aps extensive
Output Fields
Table 1 lists the output fields for the show aps command. Output fields are listed in the approximate order in which they appear.
Table 1: show aps Output Fields
Field Name | Field Description | Level of Output |
|---|---|---|
Interface | Name of the SONET/SDH interface. | All levels |
Group | Group name. | All levels |
Circuit | Circuit type: Working or Protect. | All levels |
Intf state | State of the circuit and interface in the format circuit-state, interface-state: For circuit-state:
For interface-state:
| All levels |
Neighbor | Address and state of neighbor interface. If the working and protect interfaces are on the same router, the neighbor address is displayed as 0.0.0.0. | detail extensive |
adj | State of the neighbor adjacency:
| detail extensive |
neighbor interface | State of the neighbor interface: enabled or disabled. | detail extensive |
dead | Number of seconds before the neighbor is declared dead | detail extensive |
Channel state | Circuit that has been selected: Working or Protect. On SDH configurations using Multiplex Section Protection (MSP), the APS Annex B (G.841) Lockout status is also shown in extensive output. | detail extensive |
Local-mode | Mode in which the local router is configured to interoperate with SONET line-terminating equipment (LTE): unidirectional or bidirectional. The parenthetical value represents the mode type in the K2 byte. | extensive |
neighbor-mode | Mode in which the neighboring device is operating: unidirectional or bidirectional. The parenthetical value represents the mode type in the K2 byte. | extensive |
Protect circuit is on | Interface name of the APS protect circuit, displayed when both the working circuit and protect circuit are on the same router. | detail extensive |
Working circuit is on | Interface name of the APS working circuit, displayed when both the working circuit and protect circuit are on the same router. | detail extensive |
Req K1 | Value of the SONET/SDH K1 byte requested to be transmitted by this circuit. | extensive |
rcv K1 | Value of the SONET/SDH K1 byte received on this interface. (Valid only on the protect circuit.) | extensive |
xmit K1 | Value of the SONET/SDH K1 byte being transmitted on this interface. (Valid only on the protect circuit.) | extensive |
nbr K1 | Value of the SONET/SDH K1 byte requested to be transmitted by the neighbor. | extensive |
nbr paired req | Nonzero if the neighbor is requesting a particular K1 value because of a change in the paired circuit. | extensive |
Revert time | Configured time to wait after the working circuit has become functional before making the working circuit active again. | extensive |
neighbor revert time | Configured time, on the neighbor interface, to wait after the working circuit has again become functional before making the working circuit active again. | extensive |
Hello due in | Time until the next hello packet is sent. | extensive |
Sample Output
show aps
user@host> show aps Interface Group Circuit Intf state so-0/0/0 aviva-aps Working enabled, up so-0/0/1 aviva-aps Protect disabled, up
show aps brief
The output for the show aps brief command is identical to that for the show aps command. For sample output, see show aps.
show aps detail
user@host> show aps detail Interface Group Circuit Intf state so-0/0/0 aviva-aps Working enabled, up Neighbor 0.0.0.0, adj up, neighbor interface disabled, dead 2.987 so-0/0/1 aviva-aps Protect disabled, up Neighbor 0.0.0.0, adj up, neighbor interface enabled, dead 2.147
show aps extensive
The following sample shows output from a SONET configuration:
user@host> show aps extensive Interface Group Circuit Intf state so-0/0/0 aviva-aps Working enabled, up Neighbor 0.0.0.0, adj up, neighbor interface disabled, dead 2.511 Channel state Working Protect circuit is on interface so-0/0/1 Local-mode bidirectional(5), neighbor-mode bidirectional(5) Req K1 0x00, rcv K1 0x00, xmit K1 0x00, nbr K1 0x00, nbr paired req 0 Revert time 0, neighbor revert time 0 Hello due in 0.055 so-0/0/1 aviva-aps Protect disabled, up Neighbor 0.0.0.0, adj up, neighbor interface enabled, dead 2.230 Channel state Working Working circuit is on interface so-0/0/0 Local-mode bidirectional(5), neighbor-mode bidirectional(5) Req K1 0x00, rcv K1 0x00, xmit K1 0x00, nbr K1 0x00, nbr paired req 0 Revert time 0, neighbor revert time 0 Hello due in 0.416
The following sample shows output from an SDH configuration:
user@host> show aps extensive Interface Group Circuit Intf state
cstm4-1/1/0 TO_MALIBU Working enabled, up
Neighbor 0.0.0.0, adj up, neighbor interface disabled, dead 2.833
Channel state Working, annex-b, lockout
Protect circuit is on interface cstm4-1/2/0
Local-mode bidirectional(5), neighbor-mode bidirectional(5)
Req K1 0x00, rcv K1 0x00, xmit K1 0x00, nbr K1 0x00
, rcv K2 0x10, xmit K2 0x10, nbr paired req 0
Wait to restore time 30, neighbor wait to restore time 30
Hello due in 0.945
cstm4-1/2/0 TO_MALIBU Protect disabled, up
Neighbor 0.0.0.0, adj up, neighbor interface enabled, dead 2.955
Channel state Working, annex-b
Working circuit is on interface cstm4-1/1/0
Local-mode bidirectional(5), neighbor-mode bidirectional(5)
Req K1 0x00, rcv K1 0x00, xmit K1 0x00, nbr K1 0x00
, rcv K2 0x10, xmit K2 0x10, nbr paired req 0
Wait to restore time 30, neighbor wait to restore time 30
Hello due in 0.735
