display spbm graceful-restart status

Use display spbm graceful-restart status to display SPBM Graceful Restart information.

Syntax

display spbm graceful-restart status

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display SPBM Graceful Restart information.

<Sysname> display spbm graceful-restart status

                          Restart information for SPBM
                          ----------------------------
Restart status             : Restarting
Restart phase              : LSDB synchronization
Restart interval           : 300
SA bit                     : Supported
Total number of interfaces : 2
Number of waiting LSPs     : 0
T2 remaining time          : 284

Table 14: Command output

Field	Description
Restart status	Restart state of the device: Restarting—The device is rebooting ISIS-SPB or performing an active/standby MPU switchover. In this state, the device can forward traffic because its FIB is usable. Starting—The device is rebooting. In this state, the device cannot forward traffic because the FIB is not usable. Complete—The GR process is complete. The device can forward traffic normally.
Restart phase	Restart phase: Initialization—ISIS-SPB Graceful Restart is initialized. LSDB synchronization—Peer ISIS-SPB processes are synchronizing LSDBs. LSP stability—The local LSDB is converging. LSP generation—ISIS-SPB generates and floods LSPs. First SPF computation—ISIS-SPB performs the first SPF computation. Finish—SPF computation is finished.
Restart Interval	The maximum adjacency hold time (in seconds). If the restarting device fails to complete restarting before this timer expires, the peer ISIS-SPB process removes the adjacency with the restarting ISIS-SPB. This timer is configurable with the graceful-restart t2 command.
SA bit	Support for setting the SA bit in the Restart TLV sent to the neighbor: Supported—The device performs the following actions: When the FIB is not usable, the device sets the SA bit in the hello messages so the neighbor will not advertise its adjacency with the restarting device. When the routing table is usable, the device clears the SA bit in the hello messages so the neighbor will advertise its adjacency with the restarting device. Not supported—The device clears the SA bit in the hello messages so the neighbor will always advertise its adjacency with the restarting device.
Total number of interfaces	Number of SPBM-enabled interfaces.
Number of waiting LSPs	Number of LSPs that are waiting to be synchronized with the GR helper for completing LSDB synchronization.
T2 remaining time	The remaining time (in seconds) of the T2 timer. If the restarting device fails to complete restarting before this timer expires, the neighbor removes the adjacency with the restarting device.
T1 remaining time	Remaining time (in seconds) of the T1 timer on the interface. The T1 timer sets the interval for the restarting device to retransmit hello messages with the RR bit set (restart request messages). The T1 timer is not user configurable. The restarting device retransmits a restart request message to the neighbor if it does not receive an acknowledgment for a restart request (hello message with the RA bit set) before the T1 timer expires.
RA received	Whether the interface received an ISIS-SPB hello with the RA flag from the neighbor device.
CSNP received	Whether the interface received a CSNP from the neighbor device.
T1 expirations	Number of T1 timer expirations on the interface. When this counter reaches 10, the restarting device stops retransmitting hello messages with the RR bit set.

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