230
NOTE:
Members of a peer group can have different route reception filtering policies from the peer group.
Configuring MBGP route dampening
By configuring MBGP route dampening, you can suppress unstable routes from being added to the
MBGP routing table or being advertised to MBGP peers.
To configure BGP route dampening:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp
as-number
N/A
3.
Enter IPv4 MBGP address
family view.
ipv4-family multicast
N/A
4.
Configure BGP route
dampening parameters.
dampening
[
half-life-reachable
half-life-unreachable reuse
suppress ceiling
|
route-policy
route-policy-name
] *
Not configured by default.
Configuring MBGP route attributes
You can modify MBGP route attributes to affect route selection.
Configuration prerequisites
Before you configure this task, you must configure basic MBGP functions.
Configuring MBGP route preferences
You can reference a routing policy to set preferences for routes matching it. Routes not matching it
use the default preferences.
To configure MBGP route preferences:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp
as-number
N/A
3.
Enter IPv4 MBGP address
family view.
ipv4-family multicast
N/A
4.
Configure preferences for
external, internal, local
MBGP routes.
preference
{
external-preference
internal-preference
local-preference
|
route-policy
route-policy-name
}
Optional.
The default preferences of
multicast MBGP EBGP, MBGP
IBGP, and local MBGP routes are
255, 255, and 130, respectively.
