Switching

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.

I have several 2960 switches (actually hundreds) that when they got hit by power tonight, they reverted to a 6-month old config. I promise you that both "wr mem" and "copy run start" had been run on these switches since we reconfigured them. Looking ...

HelloI have a simple setup that has somehow become an overwhelming problem that I can't seem to resolve. I have done this before so I know it works. I have approximately 8 SUN Servers that I need to setup in a test bed. All IP's will come from a remo...

Hi!We have a Cisco 1841 Router and have a new addition to the LAN in the form of a Sonicwall unit (as seen on picture, attachment)I have setup Cisco interface 0/1 with IP: 192.168.70.1/24 and the corresponding "WAN" interface (X1) on the Sonicwall un...

So, I've got a  routing/nat issue that I need some help with. I've attached an image to  give you a visual view of the network(dumbed down quite a bit). Hopefully this is the right forum section to post this in. On  our office network we have two Cis...

I have a little snag in my network configuration I need some help with. I have a test PC on VLAN2 at a branch site. When I am on the router at the branch site I can ping the computer at 10.0.125.9. When I go back one hop to the router at HQ I cannot ...