Example For Configuring As-Path Filter - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
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7.20.2 Example for Configuring AS-Path Filter

Networking Requirements
As shown in
C. Configure the AS-Path filter on Switch B. AS 20 thus does not advertises routes of AS 30 to
AS 10, or advertise routes of AS 10 to AS 30.
Issue 01 (2012-03-15)
Configuration file of SwitchD
#
sysname SwitchD
#
vlan batch 30 40
#
interface Vlanif30
ip address 9.1.1.2 255.255.255.0
#
interface Vlanif40
ip address 9.1.2.2 255.255.255.0
#
interface XGigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 30
#
interface XGigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 40
#
bgp 65009
router-id 4.4.4.4
peer 9.1.1.1 as-number 65009
peer 9.1.2.1 as-number 65009
#
ipv4-family unicast
undo synchronization
peer 9.1.1.1 enable
peer 9.1.2.1 enable
#
return
Figure 7-5, EBGP connections are set up between Switch A, Switch B, and Switch
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7 BGP Configuration
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