display spbm peer

Use display spbm peer to display ISIS-SPB neighbor information.

Syntax

display spbm peer [ system-id system-id ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

system-id system-id: Specifies a neighbor by its system ID in XXXX.XXXX.XXXX format. If you do not specify a system ID, the command displays information about all ISIS-SPB neighbors.

verbose: Displays detailed information. If you do not specify this keyword, the command only displays brief information.

Examples

# Display brief information about all ISIS-SPB neighbors.

<Sysname> display spbm peer
                          Peer information for SPBM
                          -------------------------

System ID         Port                        Circuit ID    State    Holdtime
5555.1111.1111    HGE1/0/2                    1             Up       28s
5555.1111.2222    HGE1/0/3                    1             Up*      20s

# Displays detailed information about all ISIS-SPB neighbors.

<Sysname> display spbm peer verbose
                          Peer information for SPBM
                          -------------------------

System ID         Port                        Circuit ID    State    Holdtime
5555.1111.1111    HGE1/0/2                    1             Up       28s
Peer information:
  Host name: spbm-2
  Circuit ID: 1      Cost: 10
  MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  Aux MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  AP information:
    AN: 2    DAN: 0    Valid: 1
    Format identifier       : 0
    Format capabilities     : 0
    Convention identifier   : 0
    Convention capabilities : 0
    Edge count              : 2
    Topology digest         : 0x000000dc12854410daa2c29221f095144f661000
Local information:
  Host name: spbm-1
  Circuit ID: 1      Cost: 10
  MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  Aux MCID information:
    Format Selector      : 0
    Region Name          : spb
    Revision Level       : 0
    Configuration Digest : 0x0253c1480d244e443b21e7c364d6e2a7
  AP information:
    AN: 2    DAN: 0    Valid: 1
    Format identifier       : 0
    Format capabilities     : 0
    Convention identifier   : 0
    Convention capabilities : 0
    Edge count              : 2
    Topology digest         : 0x000000dc12854410daa2c29221f095144f661000

System ID         Port                        Circuit ID    State    Holdtime
5555.1111.2222    HGE1/0/3                    1             Up       20s
Peer information:
  Host name: spbm-3
  Circuit ID: 1      Cost: 10
  MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  Aux MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  AP information:
    AN: 2    DAN: 0    Valid: 1
    Format identifier       : 0
    Format capabilities     : 0
    Convention identifier   : 0
    Convention capabilities : 0
    Edge count              : 2
    Topology digest         : 0x000000dc12854410daa2c29221f095144f661000
Local information:
  Host name: spbm-1
  Circuit ID: 1      Cost: 10
  MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  Aux MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  AP information:
    AN: 2    DAN: 0    Valid: 1
    Format identifier       : 0
    Format capabilities     : 0
    Convention identifier   : 0
    Convention capabilities : 0
    Edge count              : 2
    Topology digest         : 0x000000dc12854410daa2c29221f095144f661000

# Display detailed information about the ISIS-SPB neighbor with a system ID of 5555.1111.1111.

<Sysname> display spbm peer system-id 5555.1111.1111 verbose
                          Peer information for SPBM
                          -------------------------

System ID         Port                        Circuit ID    State    Holdtime
5555.1111.1111    HGE1/0/1                    1             Up       28s
Peer information:
  Host name: spbm-2
  Circuit ID: 1      Cost: 10
  MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  Aux MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  AP information:
    AN: 2    DAN: 0    Valid: 1
    Format identifier       : 0
    Format capabilities     : 0
    Convention identifier   : 0
    Convention capabilities : 0
    Edge count              : 2
    Topology digest         : 0x000000dc12854410daa2c29221f095144f661000
Local information:
  Host name: spbm-1
  Circuit ID: 1      Cost: 10
  MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  Aux MCID information:
    Format selector      : 0
    Region name          : spb
    Revision level       : 0
    Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
  AP information:
    AN: 2    DAN: 0    Valid: 1
    Format identifier       : 0
    Format capabilities     : 0
    Convention identifier   : 0
    Convention capabilities : 0
    Edge count              : 2
    Topology digest         : 0x000000dc12854410daa2c29221f095144f661000

Table 21: Command output

Field

Description

System ID

System ID of the neighbor.

Port

Interface connected to the neighbor.

Circuit ID

Circuit ID of the link connected to the neighbor.

State

State of the adjacency with the neighbor:

  • Init—The device is trying to establish an adjacency with the neighbor.

  • Up—An adjacency has been established, and the link is up. Traffic can be transmitted on this adjacency.

  • Up*—An adjacency has been established, and the link is up. However, traffic cannot be transmitted on this adjacency.

  • Down—An adjacency has been established, but the link is down. Traffic cannot be transmitted on this adjacency.

Holdtime

Adjacency hold time.

The adjacency hold time equals the ISIS-SPB hello interval multiplied by the hello multiplier.

The device removes the adjacency with the neighbor if it does not receive hello packets from the neighbor within the hold time.

The device maintains the adjacency with the neighbor if it receives a hello packet from the neighbor before the hold time expires.

Peer information

Neighbor information.

Local information

Information about the local SPBM node.

Host name

Symbolic hostname of the SPBM node. If the node is not assigned a symbolic hostname, this field displays its system ID.

Circuit ID

Circuit ID of the link.

Cost

Link metric value.

MCID information

Primary MST configuration identifier. It contains a digest of B-VLAN to MSTI mappings on the SPBM node. SPBM nodes must have the same MCID for the same I-SID.

Aux MCID information

Auxiliary MCID of the SPBM node.

Format selector

Format selector. It is fixed at 0 for IEEE 802.1aq SPB.

Region name

MST region name.

Revision level

MST region revision level. The default level is 0. You can use the revision-level command to change the revision level.

Configuration digest

The SPBM node's digest of B-VLAN to MSTI mappings.

AP information

AP information advertised on the adjacency. This field displays N/A if the SPBM node has not advertised AP information.

AN

Agreement number advertised by the SPBM node.

DAN

Discarded agreement number advertised by the SPBM node.

Valid

Validity of the advertised AP digest:

  • 0—The digest is invalid.

  • 1—The digest is valid.

Format identifier

Digest format identifier.

Format capabilities

Digest format options.

Convention identifier

Loop-free forwarding rules:

  • 1—No digest match. AP is disabled. Digests are exchanged but a match is not required.

  • 2—AP is enabled for both unicast and multicast FDB entries. The node forwards multicast and unicast traffic only after the two ends reach a strict agreement.

  • 3—AP is enabled only for multicast FDB entries. The node forwards multicast traffic only after the two ends reach a strict agreement. However, the node forwards unicast traffic unconditionally.

Convention capabilities

Loop-free forwarding rule conventions supported by the SPBM.

Edge count

The sum modulo 216 of all edges in the SPB topology. Each point-to-point physical link is counted as two edges. This field provides one component of the agreement digest for detecting topology mismatches.

Topology digest

Two neighbors must have the same topology digest to reach an agreement.