H3C Technologies H3C S7500E Series Switches - Manual (Page 230)

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Configuring a Shortcut Route
An eBGP route received has a priority of 255, lower than a local route. This task allows you configure
an eBGP route as a shortcut route that has the same priority as a local route and thus has greater
likehood to become the optimal route.
Follow these steps to configure a shortcut route:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Configure a shortcut route
network ip-address [ mask | mask-length ]
short-cut
Optional
By default, an eBGP
route received has a
priority of 255.
Configuring BGP Route Attributes
Prerequisites
BGP connections have been created.
Specifying a Preferred Value for Routes Received
By default, routes received from a peer have a preferred value of 0. Among multiple routes that have
the same destination/mask and are learned from different peers, the one with the greatest preferred
value is selected as the route to the destination.
Follow these steps to specify a preferred value for routes from a peer or peer group:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Specify a preferred value for
routes received from a peer or
peer group
peer { group-name | ip-address }
preferred-value value
Optional
The preferred value is 0 by
default.
Configuring Preferences for BGP Routes
A router may run multiple routing protocols, each of which has a preference specified. If they find the
same route, the route found by the routing protocol with the highest preference is selected.
This task allows you configure preferences for external, internal, local BGP routes and reference a
route policy to set preferences for matching routes as needed.