DELL 8132 ユーザーズマニュアル

OSPF Commands

The PowerConnect implementation of OSPFv2 supports graceful restart as 

specified in RFC 3623. Graceful restart works in concert with PowerConnect 

nonstop forwarding to enable the hardware to continue forwarding IPv4 

packets using OSPFv2 routes while a backup unit takes over management 

unit responsibility. When OSPF executes a graceful restart, it informs its 

neighbors that the OSPF control plane is restarting, but that it will be back 

shortly. Helpful neighbors continue to advertise to the rest of the network 

that they have full adjacencies with the restarting router, avoiding 

announcement of a topology change and 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. 
PowerConnect implements both the restarting router and helpful neighbor 

features described in RFC 3623. 

This chapter explains the following commands:

compatible rfc1583 log adjacency-

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