3Com Switch 7750 Configuration Guide

Configuring BGP Route Attributes 361
Configuring BGP Load
Balance
Configuring BGP
Route Attributes
Configuring BGP Route
Attributes
BGP possesses many route attributes for you to control BGP routing policies.
Table 297 Configure BGP route dampening
Operation Command Description
Enter system view system-view -
Enable BGP, and enter
BGP view
bgp as-number Required
By default, BGP is disabled.
Configure BGP route
dampening-related
parameters
dampening
[ half-life-reachable
half-life-unreachable
reuse suppress ceiling ]
[ route-policy
route-policy-name ]
Optional
By default, route dampening is disabled.
Other default route dampening-related
parameters are as follows.
■ half-life-reachable: 15 (in minutes)
■ half-life-unreachable: 15 (in minutes)
■ reuse: 750
■ suppress: 2000
■ ceiling: 16,000
Table 298 Configure BGP load balance
Operation Command Description
Enter system view system-view -
Enable BGP and enter BGP view bgp as-number -
Configure BGP load balance balance num Required
By default, the system does
not adopt BGP load balance.
Table 299 Configure BGP route attributes
Operation Command Description
Enter system view system-view -
Enable BGP, and enter BGP view bgp as-number Required
By default, BGP is
disabled.
Configure the management preference of
the exterior, interior and local routes
preference { ebgp-valu
e ibgp-value
local-value }
Optional
By default, the
management
preference of the
exterior, interior and
local routes is 256, 256,
and 130.
Set the default local preference default
local-preference value
Optional
By default, the local
preference defaults to
100.