3com MSR 20-20 참조 매뉴얼

C

HAPTER

 76: OSPF C

ONFIGURATION

 C

OMMANDS

undo peer ip-address

OSPF view

ip-address: Neighbor IP address.

dr-priority: Neighbor DR priority, in the range 0 to 255, the bigger the value, the 
higher the priority.

Use the peer command to specify the IP address of an NBMA neighbor, and the 
DR priority of the neighbor.

Use the undo peer command to remove the configuration.

The DR priority of NBMA neighbors defaults to 1.

On an X.25 or Frame Relay network, you can configure mappings to make the 
network fully meshed (any two routers have a direct link in between), so OSPF can 
handle DR/BDR election as it does on a broadcast network. However, since routers 
on the network cannot find neighbors via broadcasting hello packets, you need to 
specify neighbors and neighbor DR priorities on the routers.

After startup, a router sends a hello packet to neighbors with DR priorities higher 
than 0. When the DR and BDR are elected, the DR will send hello packets to all 
neighbors for adjacency establishment.

A router uses the priority set with the peer command to determine whether to 
send a hello packet to the neighbor rather than for DR election. The DR priority set 
with the ospf dr-priority command is used for DR election.

# Specify the neighbor IP address 1.1.1.1.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] peer 1.1.1.1 

preference [ ase ] [ route-policy route-policy-name ] value

undo preference [ ase ]

OSPF view

ase: Sets priority for ASE routes. If the keyword is not specified, using the 
command sets priority for internal routes.

route-policy: Applies a route policy to set priorities for specified routes.