BGP路由黑洞问题同步IBGP全接Word下载.docx

1、 passive-interface default no passive-interface Serial0/0 network 10.0.0.1 0.0.0.0 area 0 network 10.0.1.4 0.0.0.3 area 0 default-information originate always metric 2000 metric-type 1! router bgp 65000 no synchronization bgp log-neighbor-changes network 10.0.0.0 mask 255.255.0.0 network 10.3.0.0 ma

2、sk 255.255.0.0 neighbor 10.0.0.2 remote-as 65000 neighbor 10.0.0.2 update-source Loopback0 neighbor 10.0.0.2 next-hop-self neighbor 10.0.15.2 remote-as 65001 no auto-summaryip route 10.0.0.0 255.255.0.0 Null0ip route 10.3.0.0 255.255.0.0 Null0RT2: router-id 10.0.0.2 network 10.0.0.2 0.0.0.0 area 0 n

3、etwork 10.0.1.8 0.0.0.3 area 0 neighbor 10.0.0.1 remote-as 65000 neighbor 10.0.0.1 update-source Loopback0 neighbor 10.0.0.1 next-hop-self neighbor 10.0.26.2 remote-as 65002RT3: router-id 10.0.0.3 no passive-interface FastEthernet1/0 network 10.0.0.3 0.0.0.0 area 0 network 10.0.1.0 0.0.0.3 area 0 ne

4、twork 10.3.3.0 0.0.0.255 area 0RT4: router-id 10.0.0.4 log-adjacency-changes network 10.0.0.4 0.0.0.0 area 0 network 10.3.4.0 0.0.0.255 area 0RT5:router bgp 65001 network 10.5.0.0 mask 255.255.0.0 neighbor 10.0.15.1 remote-as 65000ip route 10.5.0.0 255.255.0.0 Null0 RT6: router bgp 65002 network 10.

5、6.0.0 mask 255.255.0.0 neighbor 10.0.26.1 remote-as 65000ip route 10.6.0.0 255.255.0.0 Null0五、实验连通性及其调试 ：Ping测试：10.6.6.1去往10.5.5.1.由于rt3、rt4没有运行BGP，学习不到as外的路由。下面我们来看看怎么丢包的吧！ 一、实验拓扑图（二）二、组网需求：三、实验关键配置 synchronizationredistribute bgp 65000 metric 4000 subnets ！开启了同步四、BGP连通性及调试学习来自IBGP邻居的路由在进入IGP路由表或被宣

6、告给BGP对等体之前，必须首先通过IGP来知晓该路由；1、在没有redistribute bgp 65000 metric 4000 subnets 情况下：2、redistribute bgp 65000 metric 4000 subnets 情况下：10.6.6.1去往10.5.5.1.。一、实验拓扑图（一）二、组网要求：三、基本连通性调试4、实验关键配置 redistribute bgp 65000 neighbor fuck65000 peer-group neighbor fuck65000 remote-as 65000 neighbor fuck65000 update-sou

7、rce Loopback0 neighbor fuck65000 next-hop-self neighbor 10.0.0.2 peer-group fuck65000 neighbor 10.0.0.3 peer-group fuck65000 neighbor 10.0.0.4 peer-group fuck65000redistribute bgp 65000 neighbor 10.0.0.1 peer-group fuck650005、连通性及其调试Ping10.6.6.1source10.5.5.1Ping10.5.5.1source10.6.6.1实验总结 在此次实验之中遇到了黑洞路由问题，以及同步，还有IBPG全连结，而解决黑洞问题可以是BGP同步，通过重发布的方法解决，也可以采用IBGP 全连结，每个设备上都运行BGP。在本次实验中，没有遇到什么大的困难，主要是配置太多，自己小心一点就ok，实验不难，关键是要明白为什么要同步？（目的很简单：就是为了解决不必要的BGP路由黑洞咯）什么条件才能同步？（学习来自IBGP邻居的路由在进入IGP路由表或被宣告给BGP对等体之前，必须首先通过IGP来知晓该路由；）