Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 309)

Multi-Service IronWare Routing Configuration Guide 281
53-1003033-02
IS-IS Non-Stop Routing
Disabling and enabling IS-IS graceful restart helper mode
Graceful Restart allows for the forwarding of data packets to continue along known routes while the
routing protocol information is being restored following a processor switchover.
NOTE
The ISIS GR helper mode is enabled by default on the the router and there is no configuration
required.
To disable ISIS graceful restart (GR) helper mode, enter the following commands.
Brocade(config)# router isis
Brocade(config-isis-router)# graceful-restart helper-disable
To enable the disabled ISIS graceful restart (GR) helper mode, enter the following commands.
Brocade(config)# router isis
Brocade(config-isis-router)# no graceful-restart helper-disable
[no] graceful-restart helper-disable
Displaying the IS-IS NSR status
To display the IS-IS NSR status, enter the following command.
Brocade(config-isis-router)# show isis
IS-IS Routing Protocol Operation State: Enabled
IS-Type: Level-2
System ID: cccc.bbbb.aaaa
Manual area address(es):
22.6666
Level-1-2 Database State: On
Administrative Distance: 210
Maximum Paths: 4
Default redistribution metric: 0
Protocol Routes redistributed into IS-IS:
None
Number of Routes redistributed into IS-IS: 0
Level-1 Auth-mode: None
Level-2 Auth-mode: None
Metric Style Supported for Level-1: Narrow
Metric Style Supported for Level-2: Narrow
Graceful-Restart Helper support enabled
IS-IS Partial SPF Optimizations: Enabled
Timers:
L1 SPF: Max-wait 5s Init-wait 5000ms Second-wait 5000ms
L2 SPF: Max-wait 5s Init-wait 5000ms Second-wait 5000ms
L1 SPF will run in 800msec
L2 SPF is not scheduled
PSPF: Max-wait 5000ms Init-wait 2000ms Second-wait 5000ms
PSPF will run in 300msec
LSP: max-lifetime 45s, refresh-interval 7s, gen-interval 10s
retransmit-interval 5s, lsp-interval 33ms
SNP: csnp-interval 10s, psnp-interval 2s
Global Hello Padding : Enabled
Global Hello Padding For Point to Point Circuits: Enabled
Ptpt Three Way HandShake Mechanism: Enabled
BGP Ipv4 Converged: FALSE, Ipv6 Converged: FALSE
IS-IS Traffic Engineering Support: Disabled