Switching

Hi ALL,What is meaning backup on HSRP statas?There are 5 vlans.The other four vlans aren't backup status.Only one of five vlans display messeages. When I reload Catalyst3750E-1,debug log is the fwolloing.Regards,Keiko (netowork Structure)++++++++++++...

Hi All, I have L2 vlan in my network for internet guest users which is totally separated with our corporate network by L2 vlans but they are sharing our access switches, now I am concerned about worms & virus in guest internet L2 network, if any kind...

I have this WS-X4148-RJ45V which I was using in my old Cisco 4006 with Sup WS-X4013. I moved this blade to a Cisco 4507 Chassis which is running SUP V and Phones no longer get the power from this blade.I understand that this is the Cisco Prestandard ...

I have  cisco3750 (core), 3550,3548, 2960, HP Procurve 2510 series, Extreme e250 series  swiches running in my network. Now all are running by default. Could you please suggest how can I  deploy rstp here?Or which is the best loopdetection protocol i...

How do you access/read the 64MB external flash memory card? I can access/read the internal flash but not the 64MB card. I've tried DIR disk0: and DIR slot 0: does anyone know what the command is?

This is my first use of 50u single mode fiber. Prior we only had 62.5u multimode. I've got 3750x switches and new SM SFP and yellow fiber patch cables. None of my links show connected. No lights and trunk port interfaces show down/down.Is there a...

Im tyring to follow along documentation i see via train single videos and some online resources. I am trying to enable port security.I have a Catalyst 3546 XLwhen i type in "rtr1# switchport ?""port-security" is not only of the options to choose from...

I am having an issue with this device after setting the ip address and rebooting. I have tried renaming the config.text file without success. I have also tried the steps mentioned here: http://www.cisco.com/en/US/products/hw/switches/ps628/products_t...

We have a number of 3845 routers, some running IOS 12.4(22)T2 and earlier and some running 12.4(24)T4.  On the ones with 12.4(22)T2 and earlier, gigabit interface g0/1 shows interface down/line protocol down when there is no cable connected to the in...

Hi, please i need your help I can´t configurate speed in a giga port on WS-C3560-24PS-Sswitch(config-if)#speed ?nonegotiate  Do not negotiate speeddo you know if the port support speed 100??because I need to connect with 2955C-12 switch in one port: ...