3com S7906E 참조 가이드

 

1-41 

2: System level 

group-name: Name of an IPv4 MBGP peer group, a string of 1 to 47 characters.  

ip-address: IP address of an IPv4 MBGP peer.  

value: Preferred value, in the range 0 to 65535.  

Use the peer preferred-value command to specify a preferred value for routes received from a peer or 

peer group. 

Use the undo peer preferred-value command to restore the default value.  

The default preferred value is 0.  

Routes learned from a peer have an initial preferred value. Among multiple routes that have the same 

destination/mask and are learned from different peers, the one with the greatest preferred value is 

selected as the route to the destination.  

Note that: 

If you both reference a route policy and use the peer { group-name | ip-address } preferred-value value 

command to set a preferred value for routes from a peer/peer group, the route policy sets a specified 

non-zero preferred value for routes matching it. Other routes not matching the route policy uses the 

value set with the peer preferred-value command. If the preferred value specified in the route policy is 

zero, the routes matching it will also use the value set with the command.  

For information about using a route policy to set a preferred value, refer to the command peer 

{ group-name | ip-address } route-policy route-policy-name { export | import } in this document, and 

the command apply preferred-value  preferred-value in Route policy Commands of the IP Routing 

Volume. 

# In IPv4 MBGP address family view, configure the preferred value as 50 for routes from peer 

131.108.1.1.  

<Sysname> system-view 

[Sysname]bgp 100 

[Sysname-bgp] peer 131.108.1.1 as-number 100 

[Sysname-bgp]ipv4-family multicast 

[Sysname-bgp-af-mul] peer 131.108.1.1 enable 

[Sysname-bgp-af-mul] peer 131.108.1.1 preferred-value 50 

peer { group-name | ip-address } public-as-only 

undo peer { group-name | ip-address } public-as-only 

IPv4 MBGP address family view