【正文】
nal, O OSPF, IA OSPF inter area N1 OSPF NSSA external type 1, N2 OSPF NSSA external type 2 E1 OSPF external type 1, E2 OSPF external type 2, E EGP i ISIS, L1 ISIS level1, L2 ISIS level2, * candidate default U peruser static route, o ODR T traffic engineered route Gateway of last resort is not set , 1 subs C is directly connected, Ether0 , 2 subs R [120/1] via , 00:00:07, Serial2 C is directly connected, Serial2 R [120/2] via , 00:00:07, Serial2 S2 E0 S3 S2 S3 A B C E0 15 Cisxo Education Solution 缺省的管理距離 ? 直接連接: 0 ? 靜態(tài)路由: 1(可以修改的) ? EIGRP: 90 ? IGRP: 100 ? OSPF: 110 ? RIP: 120 ? 未知: 255(最大值) 16 Cisxo Education Solution 附錄:端口的 IP配置 ? 2503show run ? 2503(config)int s0 ? 2503(configif)ip address ? 2503(configif)clock rate 202300 ? Unknown clock rate (只有 DCE端可以設(shè)時鐘速率與帶寬 ) ? 2503(configif)bandwidth 64000 ? 2503(configif)encapsulation hdlc ? 2503(configif)no shut(激活端口) ? ( HDLC為 CISCO路由設(shè)備默認(rèn)的協(xié)議封裝類型) 17 Cisxo Education Solution 端口查看: ? 2503show int s0 ? 2503show int ? Ether0 is up, line protocol is up ? 沒問題! ? Serial0 is up, line protocol is down ? 請查看數(shù)據(jù)封裝協(xié)議,時鐘速率,是否激活 ? Serial0 is down, line protocol is down ? 物理線路故障