I think the root cause of your problem is you should use "active" instead of "on". channel-group with "on" basically tells your Catalyst to use EtherChannel, which is Cisco proprietary. The "active" keyword should force the Catalyst to use LACP protocol instead. If you like, you can throw in "channel-protocol lacp" interface configuration command as well for good measure.
"EtherChannel on mode can be used to manually configure an EtherChannel. The on mode forces a port to join an EtherChannel without negotiations. The on mode can be useful if the remote device does not support PAgP or LACP. In the on mode, a usable EtherChannel exists only when the switches at both ends of the link are configured in the on mode."
I was thinking that it would be easier to set up in a manual fashion. Maybe, since the 3com seems to support LACP I should use it to establish the link. My problem is I don't have a test switch to use so if enabling the link caused any SPT issues, the villagers will come to storm the castle.
If anyone has set it up with 3com, please tell me of your experience.
We are pleased to announce availability of Beta software for 16.6.3.
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