CCNP精粹系列之二十四--BGP的水平分隔，推荐
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CCNP精粹系列之二十四--BGP的水平分隔，推荐
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BGP的水平分隔 A:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> Router(config)#host A A(config)#int lo0 A(config-if)#ip addr 192.168.10.1 255.255.255.0 A(config-if)#no shut
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A(config)#int s1/0 A(config-if)#ip addr 202.110.100.1 255.255.255.0 A(config-if)#encap hdlc A(config-if)#clock rate 56000?
A(config-if)#no shut A(config)#router bgp 64500 A(config-router)#neighbor 202.110.100.2 remote-as 64500 A(config-router)#net 192.168.10.0 A(config-router)#net 202.110.100.0?
B: Router(config)#host B B(config)#int s1/0 B(config-if)#ip addr 202.110.100.2 255.255.255.0 B(config-if)#encap hdlc B(config-if)#no shut B(config-if)#exit B(config-router)#router bgp 64500 B(config-router)#neighbor 202.110.100.1 remote-as 64500 B(config-router)#net 202.110.100.0?
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B(config)#int s1/1 B(config-if)#ip addr 202.110.101.1 255.255.255.0 B(config-if)#encap hdlc B(config-if)#clock rate 56000 B(config-if)#no shut B(config)#router bgp 64500 B(config-router)#neighbor 202.110.101.2 remote-as 64500 B(config-router)#neighbor 202.110.101.2 remote-as 64500 B(config-router)#net 202.110.101.0?
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R3 Router(config)#host R3 R3(config)#int s1/1 R3(config-if)#ip addr 202.110.101.2 255.255.255.0 R3(config-if)#encap hdlc R3(config-if)#no shut R3(config-if)#exit *Apr 21 21:00:10.551: %LINK-3-UPDOWN: Interface Serial1/1, changed state to upbgp *Apr 21 21:00:11.555: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1, changed state to up 64500 R3(config-router)#router bgp 64500 R3(config-router)#neighbor 202.110.101.1 remote-as 64500 R3(config-router)#net 202.110.101.0?
試驗(yàn)結(jié)果： R2能學(xué)到10網(wǎng)段路由，R3學(xué)不到路由。?
B#show ip ro Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP ?????? D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area ?????? N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 ?????? E1 - OSPF external type 1, E2 - OSPF external type 2 ?????? i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ?????? ia - IS-IS inter area, * - candidate default, U - per-user static route ?????? o - ODR, P - periodic downloaded static route?
Gateway of last resort is not set?
C? ??202.110.100.0/24 is directly connected, Serial1/0 C??? 202.110.101.0/24 is directly connected, Serial1/1 B??? 192.168.10.0/24 [200/0] via 202.110.100.1, 00:20:36?
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C. r>i202.110.101.0??? 202.110.101.1??????????? 0??? 100????? 0 i R3#show ip ro Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP ?????? D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area ?????? N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 ?????? E1 - OSPF external type 1, E2 - OSPF external type 2 ?? ????i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ?????? ia - IS-IS inter area, * - candidate default, U - per-user static route ?????? o - ODR, P - periodic downloaded static route?
Gateway of last resort is not set?
B??? 202.110.100.0/24 [200/0] via 202.110.101.1, 00:00:25 C??? 202.110.101.0/24 is directly connected, Serial1/1?
對(duì)于為什么是這種結(jié)果，在下一篇博文中將有詳細(xì)解釋。?
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轉(zhuǎn)載于:https://blog.51cto.com/shenleigang/152609
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