H3C Technologies H3C SR8800 - Manual (Page 235)

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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. Specify a preferred value for
routes received from a peer
or peer group.
peer { group-name | ip-address }
preferred-value value
Optional.
By default, the preferred
value is 0.
Configuring preferences for BGP routes
A router may run multiple routing protocols with each having a preference. If they find the same route, the
route found by the routing protocol with the highest preference is selected.
This task allows you to configure preferences for external, internal, and local BGP routes, and reference
a routing policy to set preferences for matching routes as needed.
To configure preferences for BGP routes:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Configure preferences for external,
internal, local BGP routes.
preference { external-preference
internal-preference
local-preference | route-policy
route-policy-name }
Optional.
The default preferences of
external, internal, and local
BGP routes are 255, 255,
and 130 respectively.
Configuring the default local preference
The local preference is used to determine the best route for traffic leaving the local AS. When a BGP
router obtains from several IBGP peers multiple routes to the same destination but with different next hops,
it considers the route with the highest local preference as the best route.
This task allows you to specify the default local preference for routes sent to IBGP peers.
To specify the default local preference:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Configure the default local preference. default local-preference value
Optional
100 by default