Configuring bgp route dampening, Configuring a shortcut route – H3C Technologies H3C SR8800 User Manual
Page 233
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Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp as-number
N/A
3.
Configure the maximum
number of prefixes allowed to
be received from a peer/peer
group.
•
Apporach 1:
peer { group-name |
ip-address } route-limit
prefix-number
[ percentage-value ]
•
Apporach 2:
peer { group-name |
ip-address } route-limit
prefix-number alert-only
[ percentage-value ]
•
Apporach 3:
peer { group-name |
ip-address } route-limit
prefix-number reconnect
reconnect-time
[ percentage-value ]
Use one of the approaches.
No limit is configured by default.
I
f the specified maximum number is
reached:
•
For approach 1,
the router
breaks down the BGP
connection to the peer.
•
For
approach
2, the router
outputs alert information but
does not break down the BGP
connection to the peer.
•
For
approach
3, the router
breaks down the BGP
connection to the peer and then
reestablishes a BGP connection
to the peer.
Configuring BGP route dampening
By configuring BGP route dampening, you can suppress unstable routes from being added to the local
routing table or being advertised to BGP 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.
Configure BGP route
dampening.
dampening [ half-life-reachable
half-life-unreachable reuse suppress ceiling |
route-policy route-policy-name ] *
Not configured by
default
Configuring a shortcut route
An EBGP route received has a priority of 255, lower than a local route. This task allows you to configure
an EBGP route as a shortcut route that has the same priority as a local route and is more likely to become
the optimal route.
To configure a shortcut route:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp as-number
N/A
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