H3C Technologies H3C S10500 Series Switches - Manual (Page 258)

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To do… Use the command… Remarks
Configure BGP route dampening
parameters
dampening [ half-life-reachable
half-life-unreachable reuse
suppress ceiling | route-policy
route-policy-name ] *
Required
Not configured by default.
Configuring MBGP route attributes
You can modify MBGP route attributes to affect route selection.
Prerequisites
Before you configure this task, you need to configure MBGP basic functions.
Configuring MBGP route preferences
You can reference a routing policy to set preferences for routes matching it. Routes not matching it use the
default preferences.
Follow these steps to configure MBGP route preferences:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv4 MBGP address family
view
ipv4-family multicast —
Configure preferences for external,
internal, and local MBGP routes
preference { external-preference
internal-preference
local-preference | route-policy
route-policy-name }
Optional
The default preferences of
multicast MBGP eBGP, MBGP
iBGP, and local MBGP routes are
255, 255, and 130, respectively.
Configuring the default local preference
Follow these steps to configure the default local preference:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv4 MBGP address family
view
ipv4-family multicast —
Configure the default local
preference
default local-preference value
Optional
100 by default.