JN0-364: Service Provider Routing and Switching, Specialist (JNCIS-SP)Demo

By Juniper · Question Mode

QuestionQ68

Border Gateway Protocol (BGP)

Which two statements regarding graceful restart are correct?

Choose two
  • A Graceful restart restarting router mode is not enabled by default.
  • B Graceful restart uses nonstop bridging for forwarding operations.
  • C Graceful restart requires that GRES be enabled.
  • D Graceful restart helper mode is enabled by default.
Explanation

Graceful restart is disabled by default for the restarting router and must be configured explicitly. Helper mode is enabled by default, allowing a router to assist a neighboring router that is performing a graceful restart. Nonstop bridging is a separate Layer 2 control-protocol resiliency feature, while GRES is used with graceful restart for protected Routing Engine switchovers rather than being an inherent prerequisite of every graceful-restart use.

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