Huawei S6700 Series

Applicable Environment
BGP4+ dampening can suppress unstable routes. BGP4+ neither adds the unstable routes to the
routing table nor advertises them to other BGP peers.
Pre-configuration Tasks
Before configuring BGP4+ route dampening, complete the following task:
l Configuring Basic BGP4+ Functions
Data Preparation
To configure BGP4+ route dampening, you need the following data.
No. Data
1 Various parameters of dampening, including half-life of a reachable route, half-life
of an unreachable route, threshold for freeing the suppressed routes, threshold for
suppressing routes, and upper limit of the penalty
8.8.2 Enabling BGP4+ Route Dampening
BGP4+ route dampening can improve network stability. You can flexibly use routing policies
for route dampening.
Context
Do as follows on the BGP4+ switch:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
bgp as-number
The BGP view is displayed.
Step 3 Run:
ipv6-family [ unicast ]
The BGP IPv6 unicast address family view is displayed.
Step 4 Run:
dampening [ half-life-reach reuse suppress ceiling | route-policy route-policy-
name ]
*
The parameters are configured for BGP4+ route dampening.
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S6700 Series Ethernet Switches
Configuration Guide - IP Routing 8 BGP4+ Configuration
Issue 01 (2012-03-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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