02-15-2002 01:48 AM - edited 03-01-2019 08:29 PM
I have a few 1900's in my network
with two 100FX fiber uplinks. I recently purchased
a 2950 to add to the network. Unfortunately, it only
supports 802.1q trunks. Is it possible to connect
it to the other switches ? Multiple vlans exist on the switches.
Does 1900 support 802.1q ?
02-15-2002 02:40 AM
1900 switches only support ISL (as far as I am aware). If there are only two VLANs on the switch then you could run them as access links and have spanning tree load balancing. I am not sure if there is a later software release for the 1900 that makes them support 802.1q
sorry I can't be anymore help
Daniel,
02-15-2002 02:44 AM
There is one solution, although it is a bit of a pain. Put a isl/dot1q capable device (like a 2900XL) between the 2950 and 1900. This way you can ISL from 1900 to 2900XL, then dot1q from 2900XL to 2950. I know this is not ideal, but Cisco say they have no plans to support ISL on the 2950 !
Daniel,
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