l
Controlling the advertising and receiving of BGP4+ routing information, which includes
the filtering of routing information and the application of the routing policies.
l
Soft resetting the BGP4+ connections
In the S6700, BGP4+ supports the route-refresh capability. When the policies are changed,
the system can refresh the BGP4+ routing table automatically without interrupting the
BGP4+ connections.
If there are switches that do not support route-refresh in the network, you can run the
peer
keep-all-routes
command to save all route refreshment locally. Then, you can run the
refresh bgp
command to soft reset the BGP4+ connections manually.
Pre-configuration Tasks
Before controlling the advertising and receiving of BGP4+ routing information, complete the
following tasks:
l
Configuring Basic BGP4+ Functions
Data Preparation
To control the advertising and receiving of BGP4+ routing information, you need the following
data.
No.
Data
1
Name and process ID of the external route to be imported
2
Name of the filtering list used in the routing policies
3
Various parameters of route dampening, including half-life of a reachable route, half-
life of an unreachable route, threshold for freeing suppressed routes, threshold for
suppressing routes, and upper limit of the penalty
8.5.2 Configuring BGP4+ to Advertise Local IPv6 Routes
The local routes to be advertised must be in the local IP routing table. You can use routing
policies to control the routes to be advertised.
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.
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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