Dell PowerEdge M520 Dell PowerConnect M6220/M6348/M8024/M8024-k CLI Referen - Page 1175
nsf helper, Syntax, Default Configuration, Command Mode, User Guidelines
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everything that goes with that (i.e., flooding of LSAs, SPF runs). Helpful neighbors continue to forward packets through the restarting router. The restarting router relearns the network topology from its helpful neighbors. This implementation of graceful restart restarting router behavior is only useful with a router stack. Graceful restart does not work on a standalone, single-unit router. nsf helper Use the nsf-helper to allow OSPF to act as a helpful neighbor for a restarting router. Use the "no" form of this command to prevent OSPF from acting as a helpful neighbor. Syntax nsf helper[ planned-only ] no nsf helper • planned-only - This keyword indicates that OSPF should only help a restarting router performing a planned restart. Default Configuration OSPF may act as a helpful neighbor for both planned and unplanned restarts Command Mode Router OSPFv3 Configuration mode User Guidelines The grace LSA announcing the graceful restart includes a restart reason. Reasons 1 (software restart) and 2 (software reload/upgrade) are considered planned restarts. Reasons 0 (unknown) and 3 (switch to redundant control processor) are considered unplanned restarts. nsf ietf helper disable is functionally equivalent to no nsf helper and is supported solely for IS CLI compatibility. OSPFv3 Commands 1175
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1,211
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