The upgrade mpls te bypass command protects FRR bypass tunnels after the SRLG attribute configuration is modified.
Usage Scenario
On a network where FRR bypass tunnels are established and SRLG is enabled, an SRLG parameter change may result in an FRR bypass tunnel failure. To prevent this problem, the upgrade mpls te bypass command is used to protect FRR bypass tunnels after the SRLG attribute configuration is modified.