H3C网络设备基本调试

,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,杭州华三通信技术有限公司,网络设备基本调试,ISSUE 1.0,日期：,杭州华三通信技术有限公司 版权所有，未经授权不得使用与传播,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,掌握用,ping,、,tracert,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,课程目标,学习完本课程，您应该能够：,网络连通性测试,系统调试,目录,ping,的实现原理,RTC,RTB,RTA,echo-request,echo-reply,192.168.1.1,192.168.1.2,192.168.2.1,192.168.2.2,192.168.3.1,ping 192.168.3.1,ping,命令的输出,RTAping 192.168.3.1,PING 192.168.3.1:56 data bytes,press CTRL_C to break,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 statistics-,5 packet(s)transmitted,5 packet(s)received,0.00%packet loss,round-trip min/avg/max=27/27/28 ms,使用,ping,命令,ping?,-a Select source IP address,-c Specify the number of echo requests to be sent,-f Specify packets not to be fragmented,-h Specify TTL value for echo requests to be sent,-i Select the interface to send the packets,-m Specify the interval in milliseconds to send packets,-n Numeric output only.No attempt will be made to lookup host,addresses for symbolic names,-p No more than 8 pad hexadecimal characters to fill out the,sent packet.For example,-p f2 will fill the sent packet,with f and 2 repeatedly,-q Quiet output.Nothing will be displayed except for the summary,lines.,-r Record route.Include the RECORD_ROUTE option in the,ECHO_REQUEST packets and display the route,-s Specify the number of data bytes to be sent,-t Specify the time in milliseconds to wait for each reply,-,tos,Specify TOS value for echo requests to be sent,-v Display the received ICMP packets other than ECHO-RESPONSE,packets.,STRING IP address or hostname of a remote system,ip,IP,Protocol,ipv6,IPv6,Protocol,tracert,的实现原理,RTC,RTB,RTA,(1),(2),echo-request,ttl,=1,192.168.1.1,192.168.1.2,192.168.2.1,192.168.2.2,192.168.3.1,tracert,192.168.3.1,ttl,-exceeded,port-unreachable,echo-request,ttl,=2,tracert,命令的输出,RTAtracert,192.168.3.1,traceroute,to 192.168.3.1(192.168.3.1)30 hops max,40 bytes packet,press CTRL,_C to break,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 RTA IPFWD/7/debug_case:,Sending,interface=Serial6/0,version=4,headlen,=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 RTA IPFWD/7/debug_case:,Sending,interface=Serial6/0,version=4,headlen,=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 RTA IPDBG/7/debug_icmp:,ICMP Receive:,ttl-exceeded(Type,=11,Code=0),Src,=192.168.1.2,Dst,=192.168.1.,1;Original IP header:Pro=17,Src,=192.168.1.1,Dst,=192.168.3.1,First 8 b,ytes,=7533829A 00140000,*Oct 1 16:59:43:920 2008 RTA IPDBG/7/debug_icmp:,ICMP Receive:port-,unreachable(Type,=3,Code=3),Src,=192.168.2.2,Dst,=192.1,.1.1;Original IP header:Pro=17,Src,=192.168.1.1,Dst,=192.168.3.1,First,8 bytes=7533829D 00140000,使用,tracert,命令,tracert,?,-a Select source IP address,-f First time to live,-m Maximum time to live,-p UDP port number,-q Number of probe packets,-w Timeout in milliseconds to wait for each reply,STRING IP address or hostname of a remote system,ipv6,IPv6,Protocol,网络连通性测试,系统调试,目录,系统调试介绍,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,调试信息的输出由两个开关控制,系统调试的操作,开启控制台对系统信息的监视功能,打开调试信息的屏幕输出开关,打开模块调试开关,显示调试开关,terminal monitor,terminal debugging,display debugging,debugging,module-name,调试信息输出的例子,ping-c 1 192.168.1.2,PING 192.168.1.2:56 data bytes,press CTRL_C to break,*Oct 1 17:16:21:648 2008 RTA IPFWD/7/debug_case:,Sending,interface=Serial6/0,version=4,headlen=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 packet from local at Serial6/0,*Oct 1 17:16:21:673 2008 RTA IPFWD/7/debug_case:,Receiving,interface=Serial6/0,version=4,headlen=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 packet from Serial6/0,*Oct 1 17:16:21:674 2008 RTA IPDBG/7/debug_case:,Delivering,interface=Serial6/0,version=4,headlen=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 packet is delivering up!,Reply from 192.168.1.2:bytes=56 Sequence=1 ttl=255 time=26 ms,-192.168.1.2 ping statistics-,1 packet(s)transmitted,1 packet(s)received,0.00%packet loss,round-trip min/avg/max=26/26/26 ms,ping,使用,ICMP,回显请求与应答检测网络连通性,tracert,使用,TTL,超时机制检测网络连通性,调试信息的输出由协议开关和屏幕开关两个开关控制,本章总结,