LDP GR can be configured so that traffic forwarding is not interrupted upon primary/backup switchovers and protocol restarts.
The following uses the configuration of Core_SPE1 on the core ring as an example. The configurations of Core_SPE2 and Core_SPE3 are similar to the configuration of Core_SPE1, and are not mentioned here.
mpls ldp
graceful-restart //Enable LDP GR.
#
The following uses the configuration of Site1_UPE1 as an example. The configurations of Site1_UPE2, Site2_UPE3, Site2_UPE4, Site3_UPE5, and Site3_UPE6 are similar to the configuration of Site1_UPE1, and are not mentioned here.
mpls ldp graceful-restart #