TIP
The apply comm-filter delete command deletes a specified community attribute from a
route. An instance of the ip community-filter command can specify only one community
attribute each time. To delete more than one community attribute, run the ip community-
filter command multiple times. If multiple community attributes are specified in one
community filter, none of them can be deleted. For more information, see the S6700
Series Ethernet Switches Command Reference.
– To delete all community attributes from a BGP route, run the apply community
none command.
– To set community attributes for a BGP route, run the apply community
{ { community-number | aa:nn } &<1-32> | internet | no-advertise | no-export |
no-export-subconfed }
*
[ additive ] command.
– To set an extended community attribute (route-target) for a route, run the apply
extcommunity { rt { as-number:nn | 4as-number:nn | ipv4-address:nn } }
&<1-16> [ additive ] command.
– To set the local preference for a BGP route, run the apply local-preference
preference command.
– To set the Origin attribute for a BGP route, run the apply origin { igp | egp as-
number | incomplete } command.
– To set a preferred value for a BGP route, run the apply preferred-value preferred-
value command.
– To set dampening parameters for an EBGP route, run the apply dampening half-
life-reach reuse suppress ceiling command.
The operations in Step 4 can be performed in any order. A node may have multiple
apply clauses or no apply clause.
----End
7.6.3 Configuring to Controll the Acceptment of BGP Routing
Information
After an import policy is configured, only the routes that match the import policy can be received.
Procedure
l Configure BGP to receive routes from all its peers or peer groups.
You can configure a BGP device to filter received routes. Perform the following steps on
a BGP switch:
1. Run:
system-view
The system view is displayed.
2. Run:
bgp as-number
The BGP view is displayed.
3. Run:
ipv4-family unicast
The IPv4 unicast address family view is displayed.
S6700 Series Ethernet Switches
Configuration Guide - IP Routing 7 BGP Configuration
Issue 01 (2012-03-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
401
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