Allied Telesis AT-S29 - Manual (Page 124)

Advanced Topics
124
Port Trunks
You can configure up to three port trunks on this switch, or 12 trunks for
the entire stack. Each trunk can combine up to four ports into an
aggregate connection with up to 800 Mbps of bandwidth when
operating at full duplex. Besides balancing the load across each port in
the trunk, the additional ports provide redundancy by taking over the
load if another port in the trunk should fail.
When using port trunks, remember that:
❑ Before removing a port trunk via the configuration menu, you
must disable all the ports in the trunk or remove all the network
cables. Otherwise, a loop may be created.
❑ To disable a single link within a port trunk, you should first
remove the network cable, and then disable both ends of the link
via the configuration menu. This allows the traffic passing across
that link to be automatically distributed to the other links in the
trunk, without losing any significant amount of traffic.