新版思科CCNP路由交换排错中文PPT--难得一见

默认情况下日志消息不包括日期和时间戳。 service timestamps {debug | log } uptime service timestamps {debug | log } datetime [mesc] [localtime] [show-timezone] [year] debug 参数 在调试输出时包括时间戳 log 参数 在每种日志消息中添加一个时间戳 uptime 在消息中包括路由器开机以来的时间 0w2d: #SYS-5-CONFIG_I : Configured from console by console 0w2d 开机后0周2天 datetime 显示准确的日期和时间 UTC 格式 标准格式 MM DD HH:MM:SS datetime后面可以跟一些参数 mesc 消息中包括毫秒信息 localtime 显示基于本地配置的时区时间 show-timezone 输出包括时区名称 year 输出包括年份信息 Connected to Dynamips VM "default" (ID 0, type c7200) - Console port 使用Dynamips 测试 r1#conf t Enter configuration commands, one per line. End with CNTL/Z. r1(config)#service timestamps ? debug Timestamp debug messages log Timestamp log messages <cr> r1(config)#service timestamps log ? datetime Timestamp with date and time uptime Timestamp with system uptime <cr> r1(config)#service timestamps log uptime 首先使用开机时间 uptime r1(config)#do show ip int br Interface IP-Address OK? Method Status Protocol FastEthernet0/0 192.168.100.2 YES NVRAM up up 产生一条消息用 Serial1/0 unassigned YES NVRAM administratively down down Serial1/1 unassigned YES NVRAM administratively down down Serial1/2 unassigned YES NVRAM administratively down down Serial1/3 unassigned YES NVRAM administratively down down r1(config)#int fa 0/0 r1(config-if)#shut r1(config-if)# 00:02:58: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to administratively down 00:02:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to down 00:02:58 开机时间 。 2 3 层改变为down r1(config-if)#exit r1(config)#service timestamps log datetime ? localtime Use local time zone for timestamps msec Include milliseconds in timestamp show-timezone Add time zone information to timestamp year Include year in timestamp <cr> r1(config)#service timestamps log datetime localtime msec show-timezone year r1(config)#int fa 0/0 r1(config-if)#no shut r1(config-if)# *Sep 15 2007 08:18:13.923 UTC: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up *Sep 15 2007 08:18:14.923 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up 2 3 层改变为up Sep 15 2007 08:18:13.923 UTC 7月 15日 8点 18分 13秒 923 毫秒 UTC时间 r1(config)#service timestamps debug ? datetime Timestamp with date and time uptime Timestamp with system uptime <cr> r1(config)#service timestamps debug uptime r1(config)#do debug all This may severely impact network performance. Continue? (yes/[no]): yes All possible debugging has been turned on r1# 00:07:09: IP routecache flags changed on Null0, added No CEF; now No CEF 00:07:09: IP routecache flags changed on Null0, added No CEF; now No CEF 00:07:10: CEF: background resolution thread state: 00:07:10: Thread fast_thread: Empty 00:07:10: Thread todothread: Empty 00:07:10: Thread slow_thread: Emp r1#un all r1#conf t r1(config)#service timestamps debug datetime ? localtime Use local time zone for timestamps msec Include milliseconds in timestamp show-timezone Add time zone information to timestamp year Include year in timestamp <cr r1(config)#$estamps debug datetime localtime msec show-timezone year r1(config)#do debgug This may severely impact network performance. Continue? (yes/[no]): yes All possible debugging has been turned on r1# *Sep 15 2007 08:22:27.335 UTC: IP routecache flags changed on Null0, added No CEF; now No CEF *Sep 15 2007 08:22:27.339 UTC: IP routecache flags changed on Null0, added No CEF; now No CEF *Sep 15 2007 08:22:27.359 UTC: CEF: background resolution thread state: *Sep 15 2007 08:22:27.359 UTC: Thread fast_thread: Empty *Sep 15 2007 08:22:27.359 UTC: Thread todothread: Empty *Sep 15 2007 08:22:27.359 UTC: Thread slow_thread: Empty *Sep 15 2007 08:22:27.923 UTC: Local MobileIP: aging arp mobility cache entries *Sep 15 2007 08:22:27.927 UTC: IP-ST: if_list try 0 *Sep 15 2007 08:22:27.927 UTC: IP-ST: gw_list total 0, try 0, completed list TRUE 日志消息前面有个* 。日志消息一般是从三种字符的一种开始：空格 星号 句号 空格 路由器的时钟被手动设置，或者和NTP时间服务器同步 星号 路由器的时钟没有别设置，或者没有和NTP服务器同步 句号 路由器的时钟被设置为同步，但和NTP服务器失去了联系