Step 1. Choose whether to manage the switch or manage the network. Note:In this example, Switch Management is chosen. Step 2. Enter your credentials and then clickLog In. Step 3. Click the Display Mode drop-down list and then chooseAdvanced. Step 4. ChoosePort Management > ...
switchxxxxxx(config)#loopback-detection enable loopback-detection enable (Interface) To enable the Loopback Detection (LBD) feature on an interface, use theloopback-detection enableInterface (Ethernet, Port Channel) Configuration mode command. To disable the Loopback Detection feature on the ...
detectswitch#no errdisable detect cause all 导致交换机接口出现err-disable的几个常见原因: 1.EtherChannelmisconfiguration 2. Duplex mismatch style="TEXT-INDENT: 2em">3.BPDU port guard 4. UDLD 5. Link-flap error 6. Loopback error 7.Port security violation 第一个当F EC两端配置不匹配的时候就会...
The L2FM disables dynamic MAC address learning within the individual VLAN that the loop is detected in. It does not disable the dynamic MAC address learning globally. This is done to protect the control plane of the switch, as a MAC constantly moving between two ports within one or more ...
Does any one know how to set up a range loop back test on a 3750 switch? I am trying to test the switch port internally but can't match loop back to a port? Any idea and thank you. Sent from Cisco Technical Support iPhone App I have this problem too Labels: Other Switching ...
导致下面PC断网丢包,光纤跳线、光模块、接口全换了,光衰发-5.7,收-9,PC全部未非postfast接口,并启用了loopdetect和bpduguard,没有发现err-disable,只有up down日志,cpu内存状态灯当时全部正常原来老思科交换机在用的时候没有任何问题,最近换了新思科设备导致,模块还是原来的模块,SFP思科模块 分享回复赞 cisco吧 ...
loopback Enable error detection on loopback pagp-flap Enable error detection on pagp-flapping 自动检测非常烦,遇到错误就会自动把端口关闭。如果不想启动错误检测,可以用命令no errdisable detect cause all来关闭。 如果想检测一部分内容,不想检测另一部分,可以用下面的命令来关闭其中的检测项目 ...
路由器(cisco)命令集 telnethost(IP或主机名）建立一个对话窗口（password:3333) showhistory显示历史命令 showrunning-config显示命令运行情况 enable进入特权级EXEC模式(password:cisco) configureterminal进入配置模式 interfacefastethernet局域网端口配置 interfaceserial广域网端口配置 ipaddress写入IP地址 noshutdown激活...
FPGAFE/GEswitchMEMCTLCPUPCMCIA2IDETofabricFromfabricCPUIFQlinksLCFElinksCTLGElinkCTLGElinkMidplanePCI123AuxandconsoleManagementGElink56789410CardpresencedetectRPmastershipPROMpresenceRouteProcessor(RP)ActiveandStandbyArbitrationTheactive-standbyarbitrationalgorithmperformedbyhardwareandsoftware:Atchassispowerup,eachRPboot...
message.Thisheartbeatletsoneswitchdetectwhentheotherhasgone off-line,topreventtrafficfrombeingdroppedduringafailure.These arelightweighthellopackets. Thesecondcommunicationchannelisthevpcpeer-link.Thisisa high-speedconnectionbetweenthetwoNX-OSswitchesthatisusedto ...