BGP状态切换反射器

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1、描述BGP消息报文和状态机制以及工作原理实验练习如图两AS系统要求全网建立BGP对等体关系，AS65131要求只和自己物理直连设备建立IBGP关系，R3R4R5宣告BGP流使得全网互通，并保证R2和R5之间线缆down掉后保证正常通讯RT1interfaceLoopBack0ipaddress1.1.1.1255.255.255.255interfaceGigabitEthernet0/0/0portlink-moderouteipaddress14.1.1.1255.255.255.0#interfaceGigabitEthernet0/0/1portlink-moderouteipad

2、dress12.1.1.1255.255.255.0#interfaceGigabitEthernet0/0/2portlink-moderouteipaddress15.1.1.1255.255.255.0#bgp100undosynchronizationpeer14.1.1.4as-number400peer5.5.5.5as-number100peer2.2.2.2as-number100peer5.5.5.5connect-interfaceLoopBack0peer2.2.2.2connect-interfaceLoopBack0#ospf1area0.0.0.0network

3、1.1.1.10.0.0.0network15.1.1.10.0.0.0network12.1.1.10.0.0.0network14.1.1.10.0.0.0#RT2interfaceLoopBack0ipaddress2.2.2.2255.255.255.255#interfaceGigabitEthernet0/0/0portlink-moderouteipaddress23.1.1.2255.255.255.0#interfaceGigabitEthernet0/0/1portlink-moderouteipaddress12.1.1.2255.255.255.0#interfac

4、eGigabitEthernet0/0/2portlink-moderouteipaddress25.1.1.2255.255.255.0#bgp100undosynchronizationpeer1.1.1.1as-number100peer5.5.5.5as-number100peer3.3.3.3as-number100peer1.1.1.1connect-interfaceLoopBack0peer5.5.5.5connect-interfaceLoopBack0peer3.3.3.3reflect-clientpeer3.3.3.3connect-interfaceLoopBac

5、k0#ospf1area0.0.0.0network2.2.2.20.0.0.0network23.1.1.20.0.0.0network25.1.1.20.0.0.0network12.1.1.20.0.0.0#RT3interfaceLoopBack0ipaddress3.3.3.3255.255.255.255#interfaceLoopBack1ipaddress192.168.3.100255.255.255.255#interfaceGigabitEthernet0/0/0portlink-moderouteipaddress23.1.1.3255.255.255.0#bgp1

6、00network192.168.3.100255.255.255.255undosynchronizationpeer2.2.2.2as-number100peer2.2.2.2connect-interfaceLoopBack0#ospf1area0.0.0.0network3.3.3.30.0.0.0network23.1.1.30.0.0.0#RT4interfaceLoopBack0ipaddress4.4.4.4255.255.255.255#interfaceLoopBack1ipaddress192.168.4.100255.255.255.255#interfaceGig

7、abitEthernet0/0/0portlink-moderouteipaddress14.1.1.4255.255.255.0#bgp400network192.168.4.100255.255.255.255undosynchronizationpeer14.1.1.1as-number100RT5interfaceLoopBack0ipaddress5.5.5.5255.255.255.255#interface