Bypass LSPs can be made adaptive using the adaptive command. Bypass LSPs are non-adaptive by default. The user can modify the adaptive bypass LSPs adaptive-parameters without disabling the LSP. If the LSP is UP, then modifying an adaptive parameter, like exclude-interface or bandwidth, leads to the creation of a new instance of the bypass LSP. Adaptiveness can be manually enabled by using the adaptive command and can be disabled by no form of the same command. Use the adaptive to set the adaptive option for the dynamic bypass LSPs to be created for the MPLS protected interface.
By default, LSPs are not adaptive.
By default, dynamic bypass LSPs are adaptive.
MPLS LSP configuration mode
MPLS router MPLS interface dynamic bypass configuration mode
The following example configures an LSP named to20 as an adaptive LSP.
device# configure device(config)# router mpls device(config-router-mpls)# lsp to20 device(config-router-mpls-lsp-to20)# adaptiveThe following example enables the adaptive command for dynamic bypass MPLS Ethernet interface 0/8.
device# configure device(config)# router mpls device(config-router-mpls)# mpls-interface ethernet 0/8 device(config-router-mpls-if-ethernet-0/8-dynamic-bypass)# adaptive enable