3com S7906E Manuel De Montage
1-24
To do…
Use the command…
Remarks
Reference an IP prefix list to
filter routing information from a
peer/peer group
filter routing information from a
peer/peer group
peer { group-name |
ip-address } ip-prefix
ip-prefix-name import
ip-address } ip-prefix
ip-prefix-name import
z
peer route-policy import
Only routes passing the first
policy, can they go to the next,
and only routes passing all the
configured policies, can they be
received.
policy, can they go to the next,
and only routes passing all the
configured policies, can they be
received.
Enabling BGP and IGP Route Synchronization
By default, when a BGP router receives an iBGP route, it only checks the reachability of the route’s next
hop before advertisement. With BGP and IGP synchronization enabled, the BGP router cannot
advertise the iBGP route to eBGP peers unless the route is also available in the IGP routing table.
Follow these steps to enable BGP and IGP synchronization:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter BGP view
bgp as-number
—
Enable synchronization
between BGP and IGP
between BGP and IGP
synchronization
Required
Not enabled by default
Limiting Prefixes Received from a Peer/Peer Group
Follow these steps to configure the maximum number of prefixes allowed to be received from a
peer/peer group:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter BGP view
bgp as-number
—