牡丹江建设工程信息网站,中国行业客户资源网,建立美好国家的办法,免费防红短链接生成项目拓扑与项目需求
项目需求
① 主链路为电信#xff0c;电信链路出故障时#xff0c;业务数据流量切换到联通链路 实验步骤
步骤1#xff1a;设备重命名以及IP地址的配置 设备 接口编号 IP地址 AR1 G0/0/0 10.0.13.1/24 G0/0/1 10.0.14.1/24 AR2 G0/0/0 10.0…
项目拓扑与项目需求
项目需求
① 主链路为电信电信链路出故障时业务数据流量切换到联通链路 实验步骤
步骤1设备重命名以及IP地址的配置 设备 接口编号 IP地址 AR1 G0/0/0 10.0.13.1/24 G0/0/1 10.0.14.1/24 AR2 G0/0/0 10.0.23.2/24 G0/0/1 10.0.14.2/24 AR3 G0/0/0 10.0.13.3/24 G0/0/1 10.0.23.3/24 G0/0/2 10.0.100.3/24 AR4 G0/0/0 10.0.14.4/24 G0/0/1 10.0.24.4/24 Loop back0 100.100.100.100/32 LSW1 Vlanif1 10.0.100.1/24 内网配置IP地址与vlan划分规划 设备 接口编号 IP地址 链路类型 所属vlan/网关 LSW1 G0/0/0 10.1.1.254/24vlanif10 Trunk / G0/0/1 20.1.1.254/24vlanif20 Trunk / LSW2 G0/0/2 / Access 20 G0/0/3 / Trunk / LSW3 G0/0/2 / Access 10 G0/0/1 / Trunk / PC1 E0/0/1 10.1.1.1/24 / 10/vlanif10 PC2 E0/0/1 20.1.1.1/24 / 20/vlanif20
按照规划自行配置不做赘述。 步骤2 配置LSW与AR3之间路由可达静态路由在R上做双出口去往公网其中电信为主链路联通为备份链路。
配置静态路由实现内网路由传到外网
LSW1的配置 [LSW1]ip route-static 0.0.0.0 0 10.0.100.3 AR3的配置 [AR3]ip route-static 10.1.1.0 24 10.0.100.1 [AR3]ip route-static 20.1.1.0 24 10.0.100.1 配置静态路由实现一主一备 [AR3]ip route-static 0.0.0.0 0 10.0.13.1 description dianxin [AR3]ip route-static 0.0.0.0 0 10.0.23.2 preference 61 description liantong 配置NAT实现私网地址转换 [AR3-acl-basic-2000]rule permit source any [AR3-GigabitEthernet0/0/0]nat outbound 2000 [AR3-GigabitEthernet0/0/1]nat outbound 2000 步骤3运行OSPF实现公网互通
AR1的配置 [AR1]ospf [AR1-ospf-1]area 0 [AR1-ospf-1-0.0.0.0]network 10.0.14.0 0.0.0.255 [AR1-ospf-1-0.0.0.0]network 10.0.13.0 0.0.0.255 AR 1和AR 2自行配置不做赘述。 步骤配置单臂回声适用于AR和SW之间链路故障场景
(1)AR3的配置 [AR3]bfd //开启BFD [AR3-bfd]quit [AR3]bfd huawei bind peer-ip 10.0.13.1 interface g0/0/0 one-arm-echo//单臂回声 [AR3-bfd-session-huwei]//创建好了一个BFD会话 [AR3-bfd-session-huwei]discriminator local 1000//本端的BFD会话id [AR3-bfd-session-huwei]commit//使能会话 查看会话建立情况 [AR3-bfd-session-huwei]display bfd session all -------------------------------------------------------------------------------- Local Remote PeerIpAddr State Type InterfaceName -------------------------------------------------------------------------------- 1000 - 10.0.13.1 Up S_IP_IF GigabitEthernet0/0/0 -------------------------------------------------------------------------------- Total UP/DOWN Session Number : 1/0 将AR1的G0/0/0接口关闭后查看会话表 [AR3-bfd-session-huwei]display bfd session all -------------------------------------------------------------------------------- Local Remote PeerIpAddr State Type InterfaceName -------------------------------------------------------------------------------- 1000 - 10.0.13.1 Down S_IP_IF GigabitEthernet0/0/0 -------------------------------------------------------------------------------- Total UP/DOWN Session Number : 0/1 可知会话状态为down检测成功 2配置BFD与静态路由联动 [AR3]ip route-static 0.0.0.0 0 10.0.13.1 track bfd-session huawei Info: Succeeded in modifying route. 将AR1的G0/0/0接口down掉 PCping 100.100.100.100 Ping 100.100.100.100: 32 data bytes, Press Ctrl_C to break From 100.100.100.100: bytes32 seq1 ttl252 time46 ms From 100.100.100.100: bytes32 seq2 ttl252 time94 ms From 100.100.100.100: bytes32 seq3 ttl252 time47 ms From 100.100.100.100: bytes32 seq4 ttl252 time94 ms From 100.100.100.100: bytes32 seq5 ttl252 time78 ms --- 100.100.100.100 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max 46/71/94 ms 可知网络联通性正常 跟踪流量路线: PCtracert 100.100.100.100 traceroute to 100.100.100.100, 8 hops max (ICMP), press CtrlC to stop 1 10.1.1.254 63 ms 31 ms 47 ms 2 * * * 3 *10.0.23.2 78 ms 62 ms 4 100.100.100.100 63 ms 62 ms 63 ms 可知PC访问外网走联通链路实现链路切换 步骤5配置NQA适用于AR1与AR4之间链路故障场景
1AR3的配置 [AR3]ip route-static 0.0.0.0 0 10.0.13.1 Info: Succeeded in modifying route. [AR3]undo bfd huawei //删除BFD会话 [AR3]nqa test-instance 1 1 [AR3-nqa-1-1]test-type icmp [AR3-nqa-1-1]source-address ipv4 10.0.13.3 [AR3-nqa-1-1]destination-address ipv4 100.100.100.100 [AR3-nqa-1-1]frequency 10 //执行的时间间隔 [AR3-nqa-1-1]timeout 1 //配置NQA测试样例自动执行测试的时间间隔 [AR3-nqa-1-1]interval seconds 1 //配置测试报文的发送间隔 [AR3-nqa-1-1]start now //开始运行 2NQA与静态路由联动配置 [AR3]ip route-static 0.0.0.0 0 10.0.13.1 track nqa 1 1 Info: Succeeded in modifying route. 将AR1的G0/0/1接口shutdown 查看nqa 运行结果 [AR3]display nqa results 查看路由表 [AR3]display ip routing-table Route Flags: R - relay, D - download to fib ------------------------------------------------------------------------------ Routing Tables: Public Destinations : 17 Routes : 16 Destination/Mask Proto Pre Cost Flags NextHop Interface 0.0.0.0/0 Static 61 0 RD 10.0.23.2 GigabitEthernet 0/0/1 由表可知链路已切换 测试外网连通性 PCping 100.100.100.100 Ping 100.100.100.100: 32 data bytes, Press Ctrl_C to break From 100.100.100.100: bytes32 seq1 ttl252 time125 ms From 100.100.100.100: bytes32 seq2 ttl252 time47 ms From 100.100.100.100: bytes32 seq3 ttl252 time47 ms From 100.100.100.100: bytes32 seq4 ttl252 time94 ms From 100.100.100.100: bytes32 seq5 ttl252 time78 ms --- 100.100.100.100 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max 47/78/125 ms
