H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IPv4 Routing
H3C S7500E Series Ethernet Switches Chapter 5 BGP Configuration
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5.4.8 Configuring BGP Route Dampening
By configuring BGP route dampening, you can suppress unstable routes from neither
adding them to the local routing table nor advertising them to BGP peers.
Follow these steps to configure BGP route dampening:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter BGP view
bgp as-number
—
Configure BGP route
dampening
dampening [ half-life-reachable
half-life-unreachable reuse
suppress ceiling | route-policy
route-policy-name ] *
Required
Not configured by
default
5.5 Configuring BGP Route Attributes
5.5.1 Prerequisites
Before configuring this task, you have configured BGP basic functions.
5.5.2 Configuration Procedure
You can configure BGP route attributes to influence BGP route selection.
Follow these steps to configure BGP route attributes:
To do…
Use the
command…
Remarks
Enter system view
system-view
—
Enter BGP view
bgp as-number
—
Configure preferences for
external, internal, local routes
preference
{ external-prefere
nce
internal-preferenc
e local-preference
| route-policy
route-policy-nam
e }
Optional
The default preferences
of external, internal, and
local routes are 255, 255,
and 130 respectively.
Configure the default local
preference
default
local-preference
value
Optional
100 by default