Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 97)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 73
53-1003031-02
MPLS CSPF fate-sharing group
1
Brocade(config-mpls-policy)# retry-limit 20
Brocade(config-mpls-policy)# exit
Brocade(config-mpls)# lsp t1
Brocade(config-mpls-lsp-t1)# adaptive
Brocade(config-mpls-lsp-t1)# frr
Brocade(config-mpls-lsp-t1-frr)# revertive mode global
Brocade(config-mpls-lsp-t1-frr)# revertive holdtime 20
Brocade(config-mpls-lsp-t1-frr)# exit
Brocade(config-mpls-lsp-t1)# commit
Brocade(config-mpls-lsp-t1)#
Displaying global revertiveness information
Use the show mpls lsp name command to display revertive mode information. The show mpls lsp
name lsp_name command displays detailed information about a specific LSP name.
Brocade# show mpls lsp name tunnel1
LSP tunnel1, to 10.3.3.3
From: 10.2.2.2, admin: UP, status: UP, tunnel interface(primary path): tnl0
Times primary LSP goes up since enabled: 1
Metric: 0, number of installed aliases: 0 Adaptive
Maximum retries: NONE, no. of retries: 0
Pri. path: p1, up: yes (backup), active: yes
Setup priority: 7, hold priority: 0
Max rate: 0 kbps, mean rate: 0 kbps, max burst: 0 bytes
…
Active Path attributes:
Tunnel interface: tnl0, outbound interface: e1/3
…
Fast Reroute: facility backup desired
Setup priority: 0, hold priority: 0
Hop Limit: 3
…
Backup LSP: UP, out-label: 3, outbound interface: e1/3 bypass_lsp: by1
Path cspf-group computation-mode: disabled
Global revertiveness enabled with hold time 20 secs
Revertive timer expires in 17 seconds
FRR Forwarding State: Pri(down), Backup(active)
The output from the show mpls lsp name lsp_name command is enhanced to display the global
revertiveness configuration. In this example, the global revertiveness is enabled with a hold time
20 seconds. The revertive timer is set to expire in 17 seconds. The secondary switchover timer is
set to expire in 31 seconds which triggers the secondary path establishment.
MPLS CSPF fate-sharing group
NOTE
MPLS CSPF fate-sharing group configuration is supported on Brocade MLX series, Brocade NetIron
XMR, Brocade NetIron CER, and Brocade NetIron CES devices.
A MPLS CSPF fate-sharing group or a Shared Risk Link Group (SRLG) is a method used to group
Traffic Engineering (TE) links and nodes in a network that share the same risk of failure. The user
can influence the path computation for a CSPF-enabled LSP by configuring a CSPF fate-sharing
group so that both the protected path and the backup path avoid sharing the same TE links