Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

3750 wont connect at 100 full with 3524XL or CAT 5500

I have 2 3750s at sites which categorically refuse to connect via their UTP ports to upstream UTP switches at anything other than 100 HDX.

If i hard code both ends to 100 FDX they wont come up.

If I leave it to auto-negotiate it comes up at 100 half.

Any other combination fails (as expected).

4 REPLIES

Re: 3750 wont connect at 100 full with 3524XL or CAT 5500

Hi,

What type of cable are you using? Did you try changing the cable between the switches?

What is the IOS you are running on all the switches?

HTH,

-amit singh

Purple

Re: 3750 wont connect at 100 full with 3524XL or CAT 5500

I have never seen this between cisco devices , I have seen strange stuff like this if you have cheapo devices like a netgear or a linksys at times .

New Member

Re: 3750 wont connect at 100 full with 3524XL or CAT 5500

Thanks. Believe me - its Cisco for me or no go...

New Member

Re: 3750 wont connect at 100 full with 3524XL or CAT 5500

After a number of failed efforts, i blew away the config on the switch and set the 3524 to auto/auto and it came good. I am not happy with the outcome as I am not sure what will happen next time there is a power outage etc. but in the absence of anything more scientific I will have to leave it.

149
Views
0
Helpful
4
Replies
CreatePlease login to create content