display spbm summary

Use display spbm summary to display the SPBM digest.

Syntax

display spbm summary [ standby slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

standby slot slot-number: Specifies a subordinate device by its IRF member ID. If you do not specify a subordinate device, the command displays information for the master device.

Examples

# Display the SPBM digest.

<Sysname> display spbm summary
                   Summary information for SPBM
                   ----------------------------
Area address           : 00.0000
System ID              : 0011.2200.0001
System control address : 0180-c200-002e
System name            : spb-1
Bridge priority        : 32768
SPSource ID            : 200
SPSource mode          : Static
Agreement mode         : Both
MCID information:
  Format selector      : 0
  Region name          : spb
  Revision level       : 0
  Configuration digest : 0x0253c1480d244e443b21e7c364d6e2a7
B-VLANs                : 1-10, 100-200

Table 24: Command output

Field

Description

Area address

ISIS-SPB area address of the device.

System ID

System ID of the device in the ISIS-SPB area.

System control address

Multicast destination for ISIS-SPB protocol packets.

System name

Hostname configured with the is-name command.

Bridge priority

SPBM bridge priority of the device. In conjunction with the system ID, the SPBM bridge priority forms the SPBM bridge ID. The SPBM bridge ID is a tie-breaker used in the ECT algorithms for choosing shortest paths.

SPSource ID

Shortest path source identifier uniquely identifies the device as a multicast source in an SPBM VSI. In conjunction with the I-SID, the SPSource ID forms the multicast address of the device in an SPBM VSI.

SPSource mode

SPSource ID creation method:

  • Static—The SPSource ID is manually configured.

  • Dynamic—The SPSource ID is dynamically assigned by ISIS-SPB.

Agreement mode

AP mode:

  • Both—AP is enabled for both unicast and multicast FDB entries. The device issues a unicast or multicast FDB entry to the FIB for forwarding traffic only if it has reached an agreement with the neighbor.

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

  • Off—AP is disabled. Digests are exchanged but a match is not required.

B-VLANs

B-VLANs configured on the device.

MCID information

Local 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.

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.