Switching

I’m wondering why the support for the SFP-10G-LR module is not listed anymore in the compatibility matrix (listed in November 2010, unlisted in December 2010). Does anybody know if SFP-10G-LR is supported on WS-X45-SUP7-E. In the SW release note for ...

HI,I have a 4 Cisco 2960s in a stack. I'm trying to use a console cable to connect to the switches and i am failing miserably. I have connected to the switches via telnet and the speed on the line con 0 was set to 115200. I think this was done on ins...

Hi, i have a cisco switch, nothing connected to it except one trunk cable, there is constant 5 Mbps traffic in to this switch, but no output.can any one help, how can i find this traffic, what debug i can enable which can help out? i tried debug ip o...

I am looking  at setting up 6509-E switch utilizing WS-X6716 and Nk5 with 2148T extender. If possible if you could provide link(s) on configuration. This will only be a single chassic setup. The 6509 has dual supervisor 720thanks,Mark

Hi guys,I appreciate the resiliency of Cisco hardware and understand that in some cases you can simply remove the power to a switch and it will function perfectly normal next time round... but I was wondering if there was a special way to power down ...

We have recently set up VoIP (using Mitel phone system) in one of our offices.  Auto QoS enabled and Voice (VLAN55) and Data VLAN (VLAN50) set-up.    We have 5 x Cisco 3750 switches in a stack.The problem we have is that a connection to one server on...

Hi,We are having issues on our network with voip. We have 7 stacks of 4 2960's all connected to the core switches 6500 series by 2 x 10g links. Perodically people on a certain stack have a interuption to their phone calls. It will drop the call for a...

I am trying to figure out the best way to implement redundancy between my core switches and my two Internet routers. I have two core switches and two Internet routers. The Internet routers are multihomed. I want to have one connection from each route...

Hi everyone, just looking to add Giga backbone into my network and i been told to go with the cisco catalyst 2960g. This is fine but there is a whooping Price tag to the unit.  Now im one of them people that will pay for quality but carnt see what th...

WS-X6148A-GE-45AF  and   WS-X6148-GE-45AF - What is the difference?Note one has the "A" after the 6148. Functionally what is the difference if any or can I swap one for the other?Alphonse

Guys   Does any one knows why the switch is not responding after the loopback test? , i have tried differnet images. Image is booking perfect but after port loopback test it hangs no response from console at al..any idea .. your earliest response wou...

My notebook connected to vlan1 of Cisco router 850. Router setup as  DHCP and DNS serers. The notebook receives ip address, but does not  receive DNS. Router's configuration attached.Please advise.Thank you,Vladimir.