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Forum Posts
Hi. we have 2 cisco 2821 routers. Few days ago one of them (vrrp backup) started to change vrrp state from backup to master. Its trying to change status a few times and leave it as master. And now we have 2 masters. And this second router constantly ...
Hello, Which types of Collison occurs at Ethernet/fastethernet/Gigabitethernet Interface & on Serial Interface.Regards
im using c2900XL-c3h2s-mz-120.5-XU.bin IOS on my 2900 Switch, but my IOS doesn't has Port-Security command, and i also not be able to erase any Vlan that i have created on 2900XL switch becasue i can't use this command. can some one please guide me w...
Resolved! Which IOS should I use with switch stack
My switch stack consists of 3750G-48TS (as master) and 3750-24TS & PS as slave. May I know whether I should choose the IOS compatible with 3750G-48TS or 3750-24TS/PS?
Resolved! IPV6 on switches
Hi,My Name is Jeff and currently working for a possible implementation of an IPV6 project for a client of ours.We are in the initial stage of doing inventory on the corporate network and we have bumped into a situation where we encountered some probl...
Any idea what this process is? Somehow the CPU util of the switch is now about 50%.What is causing this?36 297064492 5020384 59172 22.29% 24.76% 24.79% 0 VLAN Manager
Hi all, Im I have a requirement to connect 24+ uplinks to a switch with reasonable performance. I was looking for model in the 3750 series.I dont want to stack switches.Is these any model that can support this?I know the 4500 will definitely do the j...
Resolved! How to connect two VSS systems
Hello,We would like to deploy two VSS clusters, one at our main office and the other at a co-location site. We are currently running two HP switches that handle all of the switching between these sites. We have two connections between the two sites...
Hi,Using Avaya phones, each phone requires 15.4Watt of power, so using a 2960 there is no where near enough power for 48 phones, let alone 24. Is there a better model with more POE overall power?Is there a way to boost the power of current models ?
Hi all,I am planning to install this switch as a 24-port all SFP "core" switch in a relativly small office.I am looking for the following information:1) port-group mapping. When using all twingig convertor modules, which interfaces are connected to t...
Hi, I noticed that on my 2950 switches, sometimes I Configure trunk allowing certain vlans, but then I do show run and the 'switchport trunk allowe vlan x,y' info is not visible. That should come up once ports are enabled on both sides of the trunk, ...
hello,on a cat4500 sup6-e switch with WS-X4648-RJ45V-E card,we have some output drops (giga and so 100M speed's interfaces).the default number of output queue is 40.Can we rise to 50 (or 60) ?is there a commande like the 'hold-queue' one ?I know that...
Dear MisterWhat is the diagnostic that I must to use in a Catalyst 6500 with SUP 720, in order to check the NVRAM function.I get the next message in the console:%Error opening nvram:/startup-config (Invalid Checksum) Is better to open a case???Best R...
After upgraded 4006 IOS, system has a BIG error says "your rommon versio obsolete"... 4006 + supIII ios is cat4000-i5k91s-mz.122-25.EWA14Please where can i download rommon and how to upgrade it...Thanks
Hello,which WAN module with Ethernet port is recomanded for 2650MX to route LAN to the Internet ?With best regardsPavel Kral
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