Huawei Quidway NetEngine80E Configuration Manual page 906

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Figure 8-9 Typical BGP Confederation networking
Before an AS_Path filter is configured on Router A, the BGP routing table on Router A is as
follows:
[RouterA] display bgp routing-table
BGP Local router ID is 189.6.2.2
Status codes: * - valid, > - best, d - damped,
Total Number of Routes: 9
*>
*>i
* i
i
*>i
* i
i
*>i
i
* i
i
300i
65101) 300i
Case 10: Configure an AS_Path filter named s10 and allow Router A to discard routes advertised
by peers in AS 65011.
[RouterA] ip as-path-filter s10 deny \(65011_
[RouterA] ip as-path-filter s10 permit .*
[RouterA] display bgp routing-table as-path-filter s10
BGP Local router ID is 189.6.2.2
Status codes: * - valid, > - best, d - damped,
Issue 02 (2014-09-30)
AS 200 2.2.2.7/32
AS 65121
AS 65001
Router A
AS 65011
1.1.1.9/32
h - history,
Origin : i - IGP, e - EGP, ? - incomplete
Network
1.1.1.9/32
2.2.2.7/32
2.2.2.8/32
2.2.2.9/32
i 3.3.3.9/32
i
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Copyright © Huawei Technologies Co., Ltd.
Router B
Router C
2.2.2.8/32
i - internal, s - suppressed, S - Stale
NextHop MED
0.0.0.0 0
10.1.1.2 0
10.1.3.1 0
10.1.2.2 0
10.1.3.2 0
10.1.4.2 0
10.1.5.2 0
10.1.6.2 0
10.1.6.2 0
AS 65101 AS 300
Router D Router E
2.2.2.9/32 3.3.3.9/32
LocPrf PrefVal Path/Ogn
0
100 0
100 0
100 0
100 0
100 0
100 0
100 0
100 0
8 BGP Configuration
i
(65001)i
(65011 65001)
(65011)i
(65001 65011)
(65001 65101)
(65011 65101)
(65001 65101)
(65011 65001
881