如果过滤掉bgp中的某一条路由

路由策略

参考下面案列，在bgp协议x调用

https://www.h3c.com/cn/d_202309/1918016_30005_0.htm

3.4.4  配置路由策略

1. 配置Device B

# 创建ACL 2000，允许源IP地址为120.1.0.0/24的报文通过。

[DeviceB] acl basic 2000

[DeviceB-acl-ipv4-basic-2000] rule permit source 120.1.0.0 0.0.0.255

[DeviceB-acl-ipv4-basic-2000] quit

# 配置路由策略，将从对等体120.1.0.1学习到的路由发布给对等体10.2.0.101时，设置本地优先级为200。

[DeviceB] route-policy local-pre permit node 10

[DeviceB-route-policy-local-pre-10] if-match ip address acl 2000

[DeviceB-route-policy-local-pre-10] apply local-preference 200

[DeviceB-route-policy-local-pre-10] quit

[DeviceB] bgp 100

[DeviceB-bgp-default] address-family ipv4 unicast

[DeviceB-bgp-default-ipv4] peer 10.2.0.101 route-policy local-pre export

# 配置EBGP路由优先级为255，配置IBGP路由优先级为100，配置本地路由优先级为130，使IBGP路由优先级优于OSPF路由。

[DeviceB-bgp-default-ipv4] preference 255 100 130

[DeviceB-bgp-default-ipv4] quit

2. 配置Device D

# 创建ACL 2000，允许源IP地址为120.2.0.0/24的报文通过。

[DeviceD] acl basic 2000

[DeviceD-acl-ipv4-basic-2000] rule permit source 120.2.0.0 0.0.0.255

[DeviceD-acl-ipv4-basic-2000] quit

# 配置路由策略，将从对等体120.2.0.1学习到的路由发布给对等体10.1.0.101时，设置本地优先级为200。

[DeviceD] route-policy local-pre permit node 10

[DeviceD-route-policy-local-pre-10] if-match ip address acl 2000

[DeviceD-route-policy-local-pre-10] apply local-preference 200

[DeviceD-route-policy-local-pre-10] quit

[DeviceD] bgp 100

[DeviceD-bgp-default] address-family ipv4 unicast

[DeviceD-bgp-default-ipv4] peer 10.1.0.101 route-policy local-pre export

#配置EBGP路由优先级为255，配置IBGP路由优先级为100，配置本地路由优先级为130，使IBGP路由优先级优于OSPF路由。

[DeviceD-bgp-default-ipv4] preference 255 100 130

[DeviceD-bgp-default-ipv4] quit

您好，参考

06-BGP命令-新华三集团-H3C