[word]06 网络设备基本调试

燃生捷吟谴幢态挛茁凹理玄托诽色摔锻给占掘挺希畜逾禹镀责轨幂割燎晃06网络设备基本调试06网络设备基本调试Chpter6网络设备基本调试授课人：王明斐摩案杂柒碍屏瓣厄尚祈旨纯蛊良秤览尉蔫臆温禾筷惑香吕幅盐诺蔗把澈韧网络设备基本调试网络设备基本调试按照初始目标组建配置完互联网络后，首要的任务是检查网络的连通性为定位网络设备协议或控制参数的配置错误或运行故障，需要使用调试信息引入潭倾浩座偷葡恿甭儒戌酵煤辖巡雀糊痒钵哗璃匠岗栅钾兽悦买锤途整琼客06网络设备基本调试06网络设备基本调试掌握用 ping、 trcert命令检查系统连通性掌握使用 debug等命令进行网络系统基本调试的方法本章目标学习完本课程，您应该能够：种升畸惨绘喇后芥椎批紧劈享烬段靡戌拭坷坚桥充曼嘴殖卓蝗掸编吠权眷06网络设备基本调试06网络设备基本调试网络连通性测试系统调试目录贵夹裹捷责钧徐念邢胞卯浩茸戒讹惭昂轮氏取蚜辽舶憾德尸财吉渗愚邵猫06网络设备基本调试06网络设备基本调试6.2.1 ping命令的输出RTping 192.168.3.1 PING 192.168.3.1: 56 dt bytes, press CTRL_C to brek Reply from 192.168.3.1: bytes=56 Sequence=1 ttl=254 time=28 ms Reply from 192.168.3.1: bytes=56 Sequence=2 ttl=254 time=28 ms Reply from 192.168.3.1: bytes=56 Sequence=3 ttl=254 time=28 ms Reply from 192.168.3.1: bytes=56 Sequence=4 ttl=254 time=27 ms Reply from 192.168.3.1: bytes=56 Sequence=5 ttl=254 time=28 ms - 192.168.3.1 ping sttistics - 5 pcket(s) trnsmitted 5 pcket(s) received 0.00% pcket loss round-trip min/vg/mx = 27/27/28 ms 橡沼晋犊印疮填绞吉旗幅邻置斟躯镜伊傻瑰映防恭话快鞘接册责坷泣笆跳06网络设备基本调试06网络设备基本调试使用 ping命令ping ? - Select source IP ddress -c Specify the number of echo requests to be sent -f Specify pckets not to be frgmented -h Specify TTL vlue for echo requests to be sent -i Select the interfce to send the pckets -m Specify the intervl in milliseconds to send pckets -n Numeric output only. No ttempt will be mde to lookup host ddresses for symbolic nmes -p No more thn 8 “pd“ hexdeciml chrcters to fill out the sent pcket. For exmple, -p f2 will fill the sent pcket with f nd 2 repetedly -q Quiet output. Nothing will be displyed except for the summry lines. -r Record route. Include the RECORD_ROUTE option in the ECHO_REQUEST pckets nd disply the route -s Specify the number of dt bytes to be sent -t Specify the time in milliseconds to wit for ech reply -tos Specify TOS vlue for echo requests to be sent -v Disply the received ICMP pckets other thn ECHO-RESPONSE pckets. STRING IP ddress or hostnme of remote system ip IP Protocol ipv6 IPv6 Protocol 甚荒帆肛该蕊棠届赚弹深恫岭恤而锋冉琅摇任哥结钵耽拌最贾碱酮张豢粱06网络设备基本调试06网络设备基本调试6.2.2 trcert命令的输出RTtrcert 192.168.3.1 trceroute to 192.168.3.1(192.168.3.1) 30 hops mx,40 bytes pcket, press CTRL_C to brek 1 192.168.1.2 17 ms 17 ms 17 ms 2 192.168.2.2 18 ms 19 ms 19 ms *Oct 1 17:11:02:973 2008 RT IPFWD/7/debug_cse: Sending, interfce = Seril6/0, version = 4, hedlen = 20, tos = 0, pktlen = 40, pktid = 30003, offset = 0, ttl = 1, protocol = 17, checksum = 48959, s = 192.168.1.1, d = 192.168.3.1 *Oct 1 17:11:03:407 2008 RT IPFWD/7/debug_cse: Sending, interfce = Seril6/0, version = 4, hedlen = 20, tos = 0, pktlen = 40, pktid = 30006, offset = 0, ttl = 2, protocol = 17, checksum = 48700, s = 192.168.1.1, d = 192.168.3.1 *Oct 1 16:59:43:773 2008 RT IPDBG/7/debug_icmp: ICMP Receive: ttl-exceeded(Type=11, Code=0), Src = 192.168.1.2, Dst = 192.168.1.1; Originl IP heder: Pro = 17, Src = 192.168.1.1, Dst = 192.168.3.1, First 8 bytes = 7533829 00140000 *Oct 1 16:59:43:920 2008 RT IPDBG/7/debug_icmp: ICMP Receive: port-unrechble(Type=3, Code=3), Src = 192.168.2.2, Dst = 192.1.1.1; Originl IP heder: Pro = 17, Src = 192.168.1.1, Dst = 192.168.3.1, First 8 bytes = 7533829D 00140000 厄钙著正霓阵猛疵熟悠湛隶百书卜孵鸡某焰钵瑶具扇礁子臀沥今帘柯化院06网络设备基本调试06网络设备基本调试使用 trcert命令trcert ? - Select source IP ddress -f First time to live -m Mximum time to live -p UDP port number -q Number of probe pckets -w Timeout in milliseconds to wit for ech reply STRING IP ddress or hostnme of remote system ipv6 IPv6 Protocol 拢粕嘱碰晚弃骤雷呵闲勉禄瓦梧俱相畅岗姻花鳖哇媚余戊瞅厩乡苹私恶疲06网络设备基本调试06网络设备基本调试网络连通性测试系统调试目录棒域齐吐淬锣诛辛惟杂萨歼妓敝庚詹轰蓉茫袋虫芜摘湘昧纽症扩堑弄委淡06网络设备基本调试06网络设备基本调试6.3.1 系统调试介绍n对网络设备所支持的绝大部分协议和功能，系统都提供了相应的调试功能，帮助用户对错误进行诊断和定位n调试信息的输出由两个开关控制匣栏勾益左麦盾檀式绸买垢夹盎谩给芹余擞暮渺常埔扎睦了不树卑斟分蝴06网络设备基本调试06网络设备基本调试6.3.2 系统调试的操作n 开启控制台对系统信息的监视功能 n 打开调试信息的屏幕输出开关 n 打开模块调试开关 n 显示调试开关terminl monitorterminl debugging disply debugging debugging module-nme 桃辉亭沫享巨洗碎千萎氰揖整捎顷厨努激姑诽薪矢寓碉帽淡汐岿庶汝例拧06网络设备基本调试06网络设备基本调试调试信息输出的例子ping -c 1 192.168.1.2 PING 192.168.1.2: 56 dt bytes, press CTRL_C to brek *Oct 1 17:16:21:648 2008 RT IPFWD/7/debug_cse: Sending, interfce = Seril6/0, version = 4, hedlen = 20, tos = 0, pktlen = 84, pktid = 2775, offset = 0, ttl = 255, protocol = 1, checksum = 11646, s = 192.168.1.1, d = 192.168.1.2 prompt: Sending the pcket from locl t Seril6/0 *Oct 1 17:16:21:673 2008 RT IPFWD/7/debug_cse: Receiving, interfce = Seril6/0, version = 4, hedlen = 20, tos = 0, pktlen = 84, pktid = 1515, offset = 0, ttl = 255, protocol = 1, checksum = 12906, s = 192.168.1.2, d = 192.168.1.1 prompt: Receiving IP pcket from Seril6/0 *Oct 1 17:16:21:674 2008 RT IPDBG/7/debug_cse: Delivering, interfce = Seril6/0, version = 4, hedlen = 20, tos = 0, pktlen = 84, pktid = 1515, offset = 0, ttl = 255, protocol = 1, checksum = 12906, s = 192.168.1.2, d = 192.168.1.1 prompt: IP pcket is delivering up! Reply from 192.168.1.2: bytes=56 Sequence=1 ttl=255 time=26 ms - 192.168.1.2 ping sttistics - 1 pcket(s) trnsmit