Routing Commands
308
ProSafe Managed Switch
nsf [ietf] helper strict-lsa-checking
The restarting router is unable to react to topology changes. In particular, the restarting router
will not immediately update its forwarding table; therefore, a topology change may introduce
forwarding loops or black holes that persist until the graceful restart completes. By exiting the
graceful restart on a topology change, a router tries to eliminate the loops or black holes as
quickly as possible by routing around the restarting router. A helpful neighbor considers a link
down with the restarting router to be a topology change, regardless of the strict LSA checking
configuration. Use this command to require that an OSPF helpful neighbor exit helper mode
whenever a topology change occurs.
no nsf [ietf] helper strict-lsa-checking
Use this command to allow OSPF to continue as a helpful neighbor in spite of topology
changes.
Routing Information Protocol (RIP) Commands
This section describes the commands you use to view and configure RIP, which is a
distance-vector routing protocol that you use to route traffic within a small network.
router rip
Use this command to enter Router RIP mode.
Format router rip
Mode
Parameter Description
ietf This keyword is accepted but not required.
Default Enabled
Format nsf [ietf] helper strict-lsa-checking
Modes OSPF Router Configuration
Parameter Description
ietf This keyword is accepted but not required.
Default Enabled
Format nsf [ietf] helper strict-lsa-checking
Modes OSPF Router Configuration
Global Config
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