3Com S7902E Command Reference Manual - page 1277
1-41
Default Level
2: System level
Parameters
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.
Description
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
.
Examples
# In IPv4 MBGP address family view, configure the preferred value as 50 for routes from peer
131.108.1.1.
[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 public-as-only (MBGP family view)
Syntax
peer
{
group-name | ip-address
}
public-as-only
undo
peer
{
group-name | ip-address
}
public-as-only
View
IPv4 MBGP address family view