clear cisco switch config

One outlet had poor contact. Because there was no wiring module, I just fixed the wiring block and the network was ready for use. After a week, the network was broken again and I asked another colleague to change the wiring module, as a result, my colleague told me that changing the wiring module would not work, and the network would still be disconnected. I thought it was strange. I told him that the Network was originally accessible, but the wiring module was not good. I will remove the wiring

Tags: Cisco configuration switch Management address and default gatewayConfigure the switch remote management address and default gatewayThe topology diagram is as follows:650) this.width=650; "Src=" Https://s1.51cto.com/oss/201710/29/1b8f7b6af37801733cf03704e748d09a.png-wh_500x0-wm_3 -wmp_4-s_475699717.png "title=" 57.png "alt=" 1b8f7b6af37801733cf03704e748d09a.

, the first file is not the correct iOS file, the second is the correct iOS file. It's a lot easier. Set the startup mode to 2 with the Confreg command, and then manually boot from the correct iOS: Rommon 2 >boot Bootflash:cat4000-is-mz.121-11b.ew Rommon reg:0x30004180 Running diags ... ... When the boot is finished, enter the iOS interface and modify the startup parameters: Switch>enable Switch#dir

to say, after you set the password for level 1, you will be asked to enter the password next time you connect to the switch and enter K, this password is the password set for level 1. Level 15 is the privileged mode password that you enter after you enter the enable command. Step 2: Set the VLAN name. Because the four VLANs belong to different switches, the command for VLAN naming is VLAN 'vlan No. 'name' vlan name ', the following code configures VL

Cisco switch snmp setting commandCisco switch snmp setting command (from Cisco switch command list)94. set snmp Command Options: set snmp community {read-only | ready-write | read-write-all} [community_string]95. set snmp trap Command Format:Set snmp trap {enable | disable}

Simply record that a Cisco router is simulated as a frame relay switch, and the router must have a serial interface module. Liehuo.net // Enable Frame Relay switching on the vroFRSW (config) # frame-relay switching strong-fire-network // Enter the Interface Configuration ModeFRSW (config) # int serial 0/1 Veryhuo.co

numbers to this value. Each vswitch has a baseline MAC Address. Run the following command to see Sw2 # show versionBase ethernet MAC Address: 00: each port of the 0D: 28: 61: 35: 00 switch has a MAC address, which is obtained by adding the port number to the Base (baseline) MAC address. Show interfacef0/1 this command can see the MAC address of the switch port to view STP information -- Sw2 # show spanning

= "Wkiol1bc3gvsgrk3aaaxogc7-be056.png"/>1. View the corresponding IP via MAC addressRun Show ARP | Include Mac_address650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/7C/F1/wKioL1bdF7bjyfugAAANVIzMq9E942.png "title=" Qq20160307135242.png "alt=" Wkiol1bdf7bjyfugaaanvizmq9e942.png "/>The timeout cleanup time for Arp and Mac two tables is not the same. Use Switch#clear Arp-cache to

----------- --------------------------------------------------------GI1/0/1 Ip-mac INACTIVE-NO-SNOOPING-VLANGI1/0/2 Ip-mac Active Deny-all deny-all 24GI1/0/3 Ip-mac INACTIVE-NO-SNOOPING-VLANGI1/0/4 Ip-mac Active Deny-all deny-all 24GI1/0/5 Ip-mac Active Deny-all Deny-all 24GI1/0/6 Ip-mac Active deny-all deny-all 24GI1/0/7 ip-mac AC tive 172.16.24.150 a4:4c:c8:10:63:ee 24gi1/0/8 ip-mac INACTIVE-NO-SNOOPING-VLANGI1/0/9 Ip-mac Active Deny-all deny-all 24GI1/0/10 ip-mac IN

Disable forwarding of a specific MAC address on a cisco SwitchIt is really annoying to see other illegal DHCP in the LAN. In addition to the dhcp snooping method, you can also directly disable the mac address! The MAC address of machine A is 00-01-02-03-04-05, which is connected to port F0/3 of Switch B, port F0/3 is in VLAN3. Currently, forwarding of A is blocked on port B. You can set the following accord

want to initialize the switch, you need to enter the Privileged EXEC mode. Enter setup in the command prompt symbol to start the initialization operation.The Privileged EXEC mode is introduced just now. In this case, we need to talk about several modes of machine change. Different modes can execute different operation commands. First, we need to talk about two basic modes.For the sake of security, CISCO di

I am eager for the first time to switch between vlan routing and nat addresses of Cisco switches. I am very energetic and have an undefeated spirit. I am ready to continue to answer questions during multiple rounds of interviews. My little brother squashed his eyes and took out the bottom of the press box: If my company has two Internet interfaces, A and B, respectively. The following vswitch divides multip

1. Create a vlan on the vswitch Create a vtp management domain To create a vlan on a vswitch, you must first create a vtp management domain so that it can verify the current vlan on the network. The Catalyst 4000 Series Switch module only supports 802.1q. Determine whether the hardware supports trunk and whether the hardware supports trunk encapsulation: show portcapabilities Run clear

Upgrade object: WS-C3750-24TS-E Ingredients: Cisco TFTP server, one cable (connecting hosts and switches), my ThinkPad Local Area Connection: 2.2.2.1 3750-vlan 1:2.2.2.2 Telnet to the switch for configuration 1. Setting up a TFTP server Close other network connections on the host to ensure that the TFTP server address is a locally attached IP (2.2.2.1). Copy the new iOS to the TFTP server root directory.