Can you try to move one of the flapping devices to another switch to see if it will continue to flap, this is the fastest way to check who is going crazy. If there is absolutelly nothing in common for the flaping ports/devices then it has to be switch misbehaving. Check cablings, p...
Do you have some ports on this one that are fine? If yes can you try to move connection from the flapping one to that one and see if the fault is following the interface or cable. Also what is your speed/duplex configuration here? Maybe you can try fixing it to see if that is goi...
使用的配置文件：2u-2960-24.text 一、交换机配置线连接，从Console口连接到电脑 Step Action 1 Connect the RS-23 2 cable to the Switch's Comm Port and the computer's serial port. 使用配置线从RS232接口连到交换机Console口；2 Click Start > Programs > Accessories > Communications > HyperTerminal....
This chapter defines the types of interfaces on the Catalyst 2960 switch and describes how to configure them. The chapter consists of these sections: •Understanding Interface Types •Using Interface Configuration Mode •Configuring Ethernet Interfaces •Configuring th...
The Cisco® Catalyst® 2960-S Series Switches are fixed-configuration Gigabit Ethernet switches (Figure 1) that provide enterprise-class Layer 2 switching for campus and branch access applications. They enable reliable and secure business operations with lower total cost of ownership through...
Building configuration... [OK] Switch# 思科交换机端口安全(Port-Security)简介 防止MAC地址泛洪攻击,如果检测到非法流量(白名单地址满了),接口的安全缺省是关闭的。 开启端口安全功能 switchport port-security [violation {protect | restrict | shutdown}] ...
cisco2960-c-basic-network-configuration-lab说明书 ©L T A O B R © 2013 Cisco and Lab - Co Topology Addressing D S1 PC Objectives Part 1: Co ∙ Cable ∙ Config ∙ Config Part 2: Ve ∙ Displa ∙ Test e ∙ Test r ∙ Save Backgroun Cisco swi with an IP switch to...
Switch# Switch#sh int g0/1 ? accountingShow interface accounting capabilitiesShow interface capabilities information controllerShow interface status, configuration and controller status countersShow interface counters crbShow interface routing/bridging info ...
SwitchPortsModelSW VersionSW Image --- *148WS-C2960G-48TC-L12.2(35)SE5C2960-LANBASE-M Configuration register is 0xF Switch# Switch#sh flash Directory of flash:/ 2-rwx616Mar 5 1993 20:41:29 +00:00vlan.dat 3-rwx7843Mar 6 1993 02:06:20 +00:00config.text...
Switch> 首先看到的是用户模式 Switch>en 输入en(即 enable)进入特权模式 Switch#conf t 进入配置模式 Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#hostname sw2960 给交换机命名 sw2960(config)#enable secret Cisco 设置特权加密口令 ...