路由技术笔记.docx

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1、路由基础1、FIB表(1)网络连通性RT1：#sysnameRTl#interfaceGigabitEthernetO/Oipaddress202.0.0.1255.255.255.252#interfaceGigabitEthernetO/1ipaddress192.168.1.254255.255.255.0#iproute-static192.168.2.024202.0.0.2#RT2:#sysnameRT2#interfaceGigabitEthernetO/Oipaddress202.0.0.2255.255.255.252#interfaceGigabitEthernetO/1i

2、paddress192.168.2.254255.255.255.0#iproute-static192.168.1.024202.0.0.1PCl和PC2：测试:ping 192.168.2.1Ping 192.168.2.1 (192.168.2.1): 56 data bytes, press CTRL_C to break 56 bytes from 192.168.2.1: icmp_seq=0 ttl=253 time=1.140 ms56 bytes56 bytes56 bytes56 bytesfromfrom from from192.168.2192.168.2192.16

3、8.2192.168.21: icmp_seq=l1: i cmp_seq=21: icmp_seq=31: i cmp-seq=4ttl=253ttl=253 ttl=253ttl=253time=1.108time=1.047 time=1.377 time=0.986ms ms ms msPingstatisticsfor192.168.2.15packet(s)transmitted,5packet(s)received,0.0%packetlossround-tripmin/avg/max/std-dev=0.986/1.132/1.377/0.134ms%Apr1009:57:25

4、:1542023H3CPING/6/PING_STATISTICS:Pingstatisticsfor192.168.21) 5packet(s)transmitted,5packet(s)received,0.0%packetToss,round-tripmin/avg/mx/std-dev=0.986/1.132/1.377/0.134ms.2) )FIB表RTldisplayiprouting-tableDestinations:14Routes:14Destination/MaskProtoPreCostNextHopInterface0.0.0.0/32Direct00127.0.0

5、.1InLoopO127.0.0.0/8Direct00127.0.0.1InLoopO127.0.0.1/32Direct00127.0.0.1InLoopO127.255.255.255/32Direct00127.0.0.1InLoopO192.168.1.0/24Direct00192.168.1.254GEO/1192.168.1.254/32Direct00127.0.0.1InLoopO192.168.1.255/32Direct00192.168.1.254GEO/1192.168.2.0/24Static600202.0.0.2GEO/O202.0.0.0/30Direct0

6、0202.0.0.1GEO/O202.0.0.1/32Direct00127.0.0.1InLoopO202.0.0.3/32Direct00202.0.0.1GEO/O224.0.0.0/4Direct000.0.0.0NULLO224.0.0.0/24Direct000.0.0.0NULLO255.255.255.255/32Direct00127.0.0.1InLoopORTldisplayfibDestinationcount:16FIBentrycount:16Flag:UrUseabIeGiGatewayH:HostBiBIackhoIeDiDynamicSrStaticR:Rel

7、ayF:FRRDestination/MaskNexthopFlagOutlnterfaceTokenLabel0.0.0.0/32127.0.0.1UHInLoopONull127.0.0.0/8127.0.0.1UInLoopONull127.0.0.1/32127.0.0.1UHInLoopONull127.255.255.255/32127.0.0.1UHInLoopONull192.168.1.0/24192.168.1.254UGEO/1Null192.168.1.1/32192.168.1.1UHGEO/1Null192.168.1.254/32127.0.0.1UHInLoop

8、ONull192.168.1.255/32192.168.1.254UBHGEO/1Null192.168.2.0/24202.0.0.2USGRGE00Null202.0.0.0/30202.0.0.1UGE00Null202.0.0.1/32127.0.0.1UHInLoopONull202.0.0.2/32202.0.0.2UHGE00Null202.0.0.3/32202.0.0.1UBHGE00Null224.0.0.0/40.0.0.0UBNULLONull224.0.0.0/240.0.0.0UBNULLONull255.255.255.255/32127.0.0.1UHInLo

9、opONull2、快速转发表RTldisplayipfast-forwardingcacheNofast-forwardingentries.触通PCI：ping-c1192.168.2.1Ping192.168.2.1(192.168.2.1):56databytes,pressCTRL_Ctobreak56bytesfrom192.168.2.1:icmp_seq=Ottl=253time=1.431msPingstatisticsfor192.168.2.11packet(s)transmitted,1packet(s)received,0.0%packetlossround-tripm

10、in/avg/max/std-dev=1.431/1.431/1.431/nanms%Apr1010:02:51:5752023H3CPING/6/PING_STATISTICS:Pingstatisticsfor192.168.2.1:1packet(s)transmitted,1packet(s)received,0.0%packetloss,round-tripmin/avg/max/std-dev=1.431/1.431/1.431/nanms.RTldisplayipfast-forwardingcacheTotalnumberoffast-forwardingentries:2SI

11、PSPortDIPDPortProInputJfOutputJfFg192.168.2.1162192.168.1.101GE00GEO/11192.168.1.1162192.168.2.120481GEO/1GE001RTlundoipfast-forwardingload-sharing关闭快速转发功能，实现基于包的转发。3、路由协议优先级(1)缺省值路由协议H3C缺省值项目中建议值Direct0OSPF10110ISIS15Static601或者10RIP100OSPF_ASE150190BGP255255130EBGPIBGPLOCAL-AS20170130EBGPIBGPLOCAL

12、-AS(2)命令修改 StaticRTliproute-static192.168.2.024202.0.0.2preference10 RIPRTlrip1RTl-rip-lpreference120 OSPF/内部路由协议RTlospf1RTl-Ospf-Ilpreference110/外部路由协议RTlospf1RTl-ospf-lpreferencease190 ISISRTlisis1RTl-isis-laddress-familyipv4unicastRTl-isis-l-ipv4preference20 BGPRTlbgp65000RTl-bgp-defaultaddress-f

13、amilyipv4unicastRTl-bgp-default-ipv4preference20170130OSPF1、实验(1)拓扑LoopbackO:1.1.1.1/32PC1192.168.1.1/24192.168.2.0/24OspfareaoLoopbackO:2.2.2.2/32.2PC2192.168.3.1/24(2)实验配置RTA：#sysname Rm#interface LoopBackOip address l.l.l.l 255.255.255.255#interface GigabitEthernetO/Oip address 192.168.2.1 255.25

14、5.255.0#interface GigabitEthernetO/1ip address 192.168.1.254 255.255.255.0 #ospf 1 router-id l.l.l.larea 0.0.0.0network l.l.l.l 0.0.0.0network 192.168.1.0 0.0.0.255network 192.168.2.0 0.0.0.255#RTB：#sysname RTB#interface LoopBackOip address 2.2.2.2 255.255.255.255#interface GigabitEthernetO/Oip address 19