1、BGP基本配置H3C大規模網絡路由技術 1.0杭州華三通信技術有限公司 ， 本章介紹了BGP協議的配置步驟、BGP對等體和路由信息查看以及BGP的維護調試命令。引入掌握BGP路由協議的基本功能配置掌握BGP對等體信息查看掌握BGP路由協議的顯示維護課程目標學習完本課程，您應該能夠：配置BGP協議基本功能BGP基本配置示例BGP協議的基本顯示和維護目錄啟動BGP并創建BGP連接啟動BGPRouter bgp as-number配置Router IDRouter-bgp router-id router-id指定BGP對等體及AS號Router-bgp peer ip-address as-num

2、ber as-number創建BGP 地址族，并進入相應地址族視圖Router-bgp address-family ipv4 unicast 使能本地路由器與指定對等體交換路由信息的能力Router-bgp-ipv4 peer ip-address enable優化BGP連接指定建立TCP連接使用的源接口Router-bgp peer ip-address connect-interface interface-type interface-number配置允許同非直接相連網絡上的鄰居建立EBGP連接Router-bgp peer ip-address ebgp-max-hop hop-co

3、unt 配置BGP生成路由將本地路由發布到BGP路由表中 Router-bgp-ipv4 network ip-address mask | mask-length route-policy route-policy-name 引入其它路由協議的路由Router-bgp-ipv4 import-route protocol process-id | all-processes allow-direct | med med-value | route-policy route-policy-name 配置BGP協議基本功能BGP基本配置示例BGP協議的基本顯示和維護目錄BGP基本配置示例AS 6

4、510110.3.3.1/30RTAAS 65223RTBRTC10.3.3.2/3010.3.3.5/30RTDLoopback 04.4.4.4/32Loopback 02.2.2.2/32Loopback 01.1.1.1/32RTA bgp 65101RTA-bgprouter-id 1.1.1.1RTA-bgppeer 10.3.3.2 as-number 65223 RTA-bgpaddress-family ipv4 unicastRTA-bgp-ipv4network 1.1.1.1 255.255.255.255RTA-bgp-ipv4peer 10.3.3.2 enable

5、RTB bgp 65223RTB-bgprouter-id 2.2.2.2RTB-bgppeer 10.3.3.1 as-number 65101RTB-bgppeer 4.4.4.4 as-number 65223RTB-bgppeer 4.4.4.4 connect-interface LoopBack 0RTB-bgpaddress-family ipv4 unicastRTB-bgp-ipv4import-route ospf 1RTB-bgp-ipv4peer 10.3.3.1 enableRTB-bgp-ipv4peer 4.4.4.4 enableRTB-bgp-ipv4netw

6、ork 10.3.3.0 255.255.255.252RTB-ospf-1import-route bgp RTC bgp 65223RTC-bgprouter-id 4.4.4.4RTC-bgppeer 2.2.2.2 as-number 65223RTC-bgppeer 2.2.2.2 connect-interface LoopBack 0RTC-bgpaddress-family ipv4 unicastRTC-bgp-ipv4peer 2.2.2.2 enableOSPFOSPF10.3.3.8/30IBGP配置BGP協議基本功能BGP基本配置示例BGP協議的基本顯示和維護目錄顯示

7、BGP對等體的信息 本地路由器與該對等體之間BGP會話的當前狀態對等體的IP地址對等體所在的AS號BGP會話處于當前狀態的時長本地的路由器ID本地自治系統號 display bgp peer BGP local router ID : 172.16.3.130 Local AS number : 65002 Total number of peers : 2 Peers in established state : 2 Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State 10.10.10.1 65001 4 4 0 0 00:02:23 Est

8、ablished 10.10.10.6 65002 2 3 0 0 00:00:05 Established顯示BGP路由信息 路由狀態代碼目的網絡地址下一跳地址MULTI_EXIT_DISC屬性值路由的AS_PATH/ORIGIN屬性值路由首選值本地優先級local-preference屬性值 display bgp routing-table Total Number of Routes: 4 BGP Local router ID is 172.16.3.130 Status codes: * - valid, - best, d - dampened, h - history, s -

9、 suppressed, S - stale, i - internal, e - external Origin: i - IGP, e - EGP, ? - plete Network NextHop MED LocPrf PrefVal Path/Ogn * 1.1.1.1/32 10.10.10.1 0 0 65001i *i 4.4.4.4/32 10.10.10.6 0 100 0 ?查看BGP的debugging信息接收到的BGP協議消息報文類型BGP有限狀態機狀態切換debugging bgp event*Dec 13 05:39:07:885 2014 RTA BGP/7/D

10、EBUG: BGP.: 10.3.3.2 State is changed from IDLE to CONNECT.*Dec 13 05:39:07:888 2014 RTA BGP/7/DEBUG: BGP.: 10.3.3.2 Receive Tcp_CR_Acked event in CONNECT state.*Dec 13 05:39:07:888 2014 RTA BGP/7/DEBUG: BGP.: Connected to 10.3.3.2.*Dec 13 05:39:07:888 2014 RTA BGP/7/DEBUG: BGP.: 10.3.3.2 State is c

11、hanged from CONNECT to OPENSENT.*Dec 13 05:39:07:892 2014 RTA BGP/7/DEBUG: BGP.: 10.3.3.2 Receive ReceiveOpenMessage event in OPENSENT state.*Dec 13 05:39:07:892 2014 RTA BGP/7/DEBUG: BGP.: 10.3.3.2 State is changed from OPENSENT to OPENCONFIRM.*Dec 13 05:39:07:894 2014 RTA BGP/7/DEBUG: BGP.: 10.3.3.2 Receive ReceiveKeepAlive