H3C Technologies H3C S12500 Series Switches - Manual (Page 235)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ipv4-family vpn-instance
vpn-instance-name
Use either method.
3. Specify the maximum number
of routes that a router can
receive from a peer or peer
group.
peer { group-name | ip-address }
route-limit prefix-number
[ { alert-only | reconnect
reconnect-time } |
percentage-value ] *
By default, the number of routes
that a router can receive from a
peer or peer group is not limited.
Ignoring the ORIGINATOR_ID attribute of BGP routes
In general, BGP saves the ORIGINATOR ID attribute of BGP routes received from the router reflector to
make sure that those routes will not be advertised back to the route reflector. But BGP might need to
advertise BGP-VPN routes with different Route Distinguisher (RD) attributes back to the route reflector. For
more information about RD, see MPLS Configuration Guide. To meet this requirement, use the peer
ignore-originated command to ignore the ORIGINATOR_ID attribute of BGP routes received from the
route reflector.
Before you execute the peer ignore-originatorid command, make sure that no routing loop exits among
route reflectors in the network.
The peer ignore-originatorid also enables BGP to ignore the CLUSTER_LIST attribute of BGP routes.
To ignore the ORIGINATOR_ID attribute of BGP routes:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ipv4-family vpn-instance
vpn-instance-name
Use either method.
3. Ignore the ORIGINATOR_ID
attribute of BGP routes
received from the route
reflector.
peer { group-name | ip-address }
ignore-originatorid
By default, BGP saves the
ORIGINATOR ID attribute of
received BGP routes.
Configuring BGP route dampening
By configuring BGP route dampening, you can suppress unstable routes from being added to the local
routing table or from being advertised to BGP peers.
To configure BGP route dampening: