Cisco Catalyst 3920 Token Ring

Unanswered Question
May 16th, 2007

Does anybody remember Token Ring? I have a Cisco Token Ring Switch and a 3Com Hub 16M. I want to use toiken ring fiber transceivers to extend the hub, but when I try this between a patch fiber cable I only get insertion on the Cisco Switch and not the HUB. Any Ideas??

I have this problem too.
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scottmac Wed, 05/16/2007 - 12:03

The Ring In / Ring Out (RI/RO) ports may need to be enabled. In some cases it's a dipswitch, in other caes it may be a console command.

You (usually) cannot use the RI/RO into a standard host port ... RI must go to RO, RO must go to RI ...

I'm also assuming that you have properly crossed the Tx/Rx, and made sure the cable is good.

Also note that you may need to manually set the ring speed on either or both components.

Good Luck


glen.grant Wed, 05/16/2007 - 15:19

Make sure the speeds are the same on both ends , you had 4 meg token ring and 16 meg token ring . If they don't match you won't get a connection . My condolences on having to still run token ring .


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