3Com S7906E - Switch, Configuration Manual

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To do… Use the command… Remarks
Filter incoming routes using an
ACL or IP prefix list
filter-policy { acl-number |
ip-prefix ip-prefix-name }
import
Reference a route policy to
routes from an IPv4 MBGP
peer/peer group peer { group-name |
ip-address } route-policy
policy-name import
Reference an ACL to filter
routing information from an
IPv4 MBGP peer/peer group peer { group-name |
ip-address } filter-policy
acl-number import
Reference an AS path ACL to
filter routing information from
an IPv4 MBGP peer/peer group peer { group-name |
ip-address } as-path-acl
as-path-acl-number import
Reference an IP prefix list to
filter routing information from
an IPv4 MBGP peer/peer group peer { group-name |
ip-address } ip-prefix
ip-prefix-name import
At least one of these
approaches is required.
No inbound route filtering is
configured by default.
Specify the maximum number
of routes that can be received
from an IPv4 MBGP peer/peer
group
peer { group-name |
ip-address } route-limit limit
[ percentage ]
Optional
The number is unlimited by
default.
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.
Follow these steps to configure BGP route dampening:
To do… Use the command… Remarks
Enter system view system-view
—
Enter BGP view bgp as-number
—
Enter IPv4 MBGP address
family view
ipv4-family multicast
—
Configure BGP route
dampening parameters
dampening
[ half-life-reachable
half-life-unreachable reuse
suppress ceiling
| route-policy
route-policy-name ] *
Required
Not configured by default
Configuring MBGP Route Attributes
You can modify MBGP route attributes to affect route selection.