Switching

Hello could anyone help me? I have got 2 catalist 520 series switch on my network and they have created its own autonomous RSTP and one of them is root bridge and they are not communicating with other cisco switches could anyone tell me what could be...

Currently 6506 switch has modules (Sup2, WS-F6K-PFC2, WS-X6408A-GBIC and WS-F6K-MSFC2)I will add WS-X6408A-GBIC module in 6506 cisco catalyst switch. Currently 6506 has Sup2 engine, WS-X6408A-GBIC module and MSFC. Current Sup2 engine CAT OS version i...

Aside from using slot 5 or 6 for the SUP engine, does it matter from power supply utilization, what order the blades are installed?For example if I have six blades, two 48 port gigabit blades and four 48 port fastethernet POE blades, does it matter h...

Hi,I was just doing a lab with dot1x when I noticed that I didn't have the options force-authorized or force-unauthorized or auto. this is what I had:ACB21(config-if)#dot1x ?  credentials     Credentials profile configuration  default         Configu...

Hi Experts,First off, I need to admit that I am a networking dummy, and have limited understanding of what I ask.  Unfortunately, the consultant who will be setting up my network is not available until next week, and due to a new construction deadlin...

i recently had a report from one of my remote sites stating that they had a broadcast storm that specifically trageted the energywise feature of these switches.have you heard of such an attack, if yes, how would you mitigate against it.many thanks

I had a few CF cards taken from our training routers and thought I would save a few bucks by buying non-cisco cards.  I researched online and it seemed like a good idea.  For some reason, when I boot using the Edge CF card, it will not read the flash...

Hi I got Cisco Cat 3560 X 24 PT POE IP Base and Catalyst 3560 G 48 PT POE 4 SFP SMI. Is there any instruction Document I can follow for configure this SW. Please Help

I am needing to set priority to a workstation that does only av conferencing(skype/netmeeting).  The site has a c1900isr.  am looking at pbr on that isr to do this.  does below config fit the billip cefroute-map voip1match ip address 1set ip preceden...

I am not a Cisco Professional but I do know my way around networking, and am having the following problem. Any help would be greatly appreciated. We have a Cisco Catalyst 520 managed switch in the main office. We  have two small 8 port cisco switche...

We have an 1801W V06.  It is straight out of the box, and I cannot log on to configure it.  I have downloaded 'Cisco Configuration Professional', and when I select 'Set Up New Device', it all works up until the point where it tries to log on to the r...