Switch Conflict

Unanswered Question
May 17th, 2007
User Badges:

I have a 3560 switch and a 2960G switch. They are both in separate buildings, connected by Gigabit GBICs to an Allied Telesyn switch via separate fiber optic paths. When I connect the 2960G, the 3560 stops communicating with the network. There are no IP address conflicts, each switch has it's own IP. As soon as I disconnect the 2960G, the 3560 begins communicating again. The only configuration on the two CISCO switches are via the express setup GUI. Other than that, they have factory default settings. If anyone has any idea as to why this might be happening, I am all ears and very appreciative of your thoughts. Thanks you.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
desai.jaideep Thu, 05/17/2007 - 08:07
User Badges:
  • Gold, 750 points or more


Between switches there is lot of layer 2 data transferring then just IP. Its very hard to diagnose remotely. Can u just post the "sh tech-support" of all the switches?



slgifford Thu, 05/17/2007 - 11:02
User Badges:

Thank you for your reply JD. I was short on time and had to hire someone smarter than me (was easy to find that person) to fix it. Turns out that both switches were operating in "server" mode. I am new to Cisco switches and didn't know they did that. He fixed it and we are up and running. Again, thank you for your willingness to help, I appreciate it.

desai.jaideep Thu, 05/17/2007 - 20:00
User Badges:
  • Gold, 750 points or more

Hmm... sounds different.

But anyways if its up and running...thats all matters.




This Discussion