The revertive mode global command can be executed only on LSPs with FRR and adaptive enabled.
Global revertiveness is enabled by default for LSPs with FRR and adaptive enabled.
MPLS LSP Fast Reroute.
The no option disables global revertiveness on an LSP.
When adaptive is disabled, then global revertiveness is also disabled.
MPLS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.
The following example enables global revertiveness on LSP t1.
device# config device(config)# router mpls device(config-router-mpls)# lsp t1 device(config-router-mpls-lsp-t1)# adaptive device(config-router-mpls-lsp-t1)# frr device(config-router-mpls-lsp-t1-frr)# revertive global enable
The following example is of an adaptive LSP.
device# configure terminal device(config)# router mpls device(config-mpls)# lsp t1 device(config-router-mpls-lsp-t1)# to 10.3.3.3 device(config-router-mpls-lsp-t1)# from 10.2.2.2 device(config-router-mpls-lsp-t1)# traffic-eng mean-rate 1000 device(config-router-mpls-lsp-t1)# adaptive device(config-router-mpls-lsp-t1)# frr device(config-router-mpls-lsp-t1-frr)# facility-backup device(config-router-mpls-lsp-t1-frr)# exit device(config-router-mpls-lsp-t1)# enable device(config-router-mpls)#
The following example changes the FRR bandwidth for an adaptive LSP.
device(config)# device(config)# router mpls device(config-router-mpls)# lsp t1 device(config-router-mpls-lsp-t1)# frr device(config-router-mpls-lsp-t1-frr)# bandwidth 1000 device(config-router-mpls-lsp-t1-frr)# exit device(config-router-mpls-lsp-t1)# commit
The following example show how global revertiveness is enabled by default in FRR mode for an adaptive LSP.
device# configure device(config)# router mpls device(config-router-mpls)# policy device(config-router-mpls-policy)# retry-limit 20 device(config-router-mpls-policy)# exit device(config-router-mpls)# lsp t1 device(config-router-mpls-lsp-t1)# adaptive device(config-router-mpls-lsp-t1)# frr device(config-router-mpls-lsp-t1-frr)# revertive mode global device(config-router-mpls-lsp-t1-frr)# revertive holdtime 20 device(config-router-mpls-lsp-t1-frr)# exit device(config-router-mpls-lsp-t1)# commit device(config-router-mpls-lsp-t1)#