Why does the entire TokenChannel go down if a single link fails in the Catalyst 3900?
A. This limitation is removed in release 4.1.1., when fault-tolerant Channels are added (TokenChannel and ISL Channel). The fault-tolerant feature enables TokenChannel and ISL Channel configurations to function as long as there is at least one port active in the channel. This capability ensures that large portions of a network are not disrupted in the event a port or cable fails within the channel by transferring the traffic to one or more of the remaining ports in the channel.
