请教大家一个问题 1-R1R2为ibgp关系，R3R4为ibgp，R2R3为ebgp关系 R1R2R3R4上分别配置了环回地址1.1.1.1/32 ，2.2.2.2/32 ，3.3.3.3/32 ，4.4.4.4/32 并且R1R2R3R4上将环回以及直连都宣告进了rip中 R1R2R3R4上Bgp进程中只network了本地的环回地址/32 现在观察到R1上的bgp路由表不停地震荡，如下 不停地震荡 开启debug之后看到 *Jul 16 14:21:11.315: BGP: Applying map to find origin for 1.1.1.1/32 请教一下大家上面这个告警是什么意思，我并没有配置什么map 还有就是R1上的bgp路由表为什么一直在震荡 还有就是经过观察R2R3R4上均有上面的告警出现并且路由表也是震荡，动不动就学不到ebgp的路由 附上配置 R1上 R1#show running-config Building configuration... Current configuration : 1152 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! no ip domain lookup ! ip cef ip audit notify log ip audit po max-events 100 no ftp-server write-enable ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown duplex half ! interface FastEthernet1/0 ip address 12.1.1.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/1 no ip address shutdown duplex auto speed auto ! router rip version 2 network 1.0.0.0 network 12.0.0.0 no auto-summary ! router bgp 64512 no synchronization bgp router-id 1.1.1.1 bgp log-neighbor-changes network 1.1.1.1 mask 255.255.255.255 neighbor 2.2.2.2 remote-as 64512 neighbor 2.2.2.2 update-source Loopback0 no auto-summary ! ip classless no ip http server no ip http secure-server ! gatekeeper shutdown ! ! line con 0 exec-timeout 0 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 login ! ! ! End R2上 R2#show running-config Building configuration... Current configuration : 1324 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R2 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! no ip domain lookup ! ip cef ip audit notify log ip audit po max-events 100 no ftp-server write-enable ! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown duplex half ! interface FastEthernet1/0 ip address 12.1.1.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/1 ip address 23.1.1.2 255.255.255.0 duplex auto speed auto ! router rip version 2 network 2.0.0.0 network 12.0.0.0 network 23.0.0.0 no auto-summary ! router bgp 64512 no synchronization bgp router-id 2.2.2.2 bgp log-neighbor-changes network 2.2.2.2 mask 255.255.255.255 neighbor 1.1.1.1 remote-as 64512 neighbor 1.1.1.1 update-source Loopback0 neighbor 1.1.1.1 next-hop-self neighbor 3.3.3.3 remote-as 65535 neighbor 3.3.3.3 ebgp-multihop 255 neighbor 3.3.3.3 update-source Loopback0 no auto-summary ! ip classless no ip http server no ip http secure-server ! gatekeeper shutdown ! ! line con 0 exec-timeout 0 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 login ! ! ! end R2# R3上 R3#show running-config Building configuration... Current configuration : 1324 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R3 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! no ip domain lookup ! ip cef ip audit notify log ip audit po max-events 100 no ftp-server write-enable ! interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown duplex half ! interface FastEthernet1/0 ip address 34.1.1.3 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/1 ip address 23.1.1.3 255.255.255.0 duplex auto speed auto ! router rip version 2 network 3.0.0.0 network 23.0.0.0 network 34.0.0.0 no auto-summary ! router bgp 65535 no synchronization bgp router-id 3.3.3.3 bgp log-neighbor-changes network 3.3.3.3 mask 255.255.255.255 neighbor 2.2.2.2 remote-as 64512 neighbor 2.2.2.2 ebgp-multihop 255 neighbor 2.2.2.2 update-source Loopback0 neighbor 4.4.4.4 remote-as 65535 neighbor 4.4.4.4 update-source Loopback0 neighbor 4.4.4.4 next-hop-self no auto-summary ! ip classless no ip http server no ip http secure-server ! gatekeeper shutdown ! ! line con 0 exec-timeout 0 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 login ! ! ! end R3# R4上 R4#show run R4#show running-config Building configuration... Current configuration : 1152 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R4 ! boot-start-marker boot-end-marker ! ! no aaa new-model ip subnet-zero ! ! no ip domain lookup ! ip cef ip audit notify log ip audit po max-events 100 no ftp-server write-enable ! interface Loopback0 ip address 4.4.4.4 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown duplex half ! interface FastEthernet1/0 ip address 34.1.1.4 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/1 no ip address shutdown duplex auto speed auto ! router rip version 2 network 4.0.0.0 network 34.0.0.0 no auto-summary ! router bgp 65535 no synchronization bgp router-id 4.4.4.4 bgp log-neighbor-changes network 4.4.4.4 mask 255.255.255.255 neighbor 3.3.3.3 remote-as 65535 neighbor 3.3.3.3 update-source Loopback0 no auto-summary ! ip classless no ip http server no ip http secure-server ! gatekeeper shutdown ! ! line con 0 exec-timeout 0 0 logging synchronous stopbits 1 line aux 0 stopbits 1 line vty 0 4 login ! ! ! end | 
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发表于 2016-7-16 14:31:37
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