Allied Telesis AT-FS970M Series - Manual (Page 711)

AT-FS970M Switch Command Line User’s Guide
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are compatible with the device to which the trunk will be connected.
When you create a static port trunk, the management software
copies the current settings of the lowest numbered port in the trunk
to the other ports, so that all the ports have the same settings. For
example, if you create a port trunk of ports 5 to 8, the parameter
settings for port 5 are copied to ports 6, 7, and 8 so that all the
ports of the trunk have the same settings.
 After creating a port trunk, do not change the speed, duplex mode,
flow control, or back pressure of any port in the trunk without also
changing the other ports.
 A port can belong to only one static trunk at a time.
 A port cannot be a member of a static trunk and an LACP trunk at
the same time.
 The ports of a static trunk must be untagged members of the same
VLAN. A trunk cannot consist of untagged ports from different
VLANs.
 The switch selects the lowest-numbered port in the trunk to handle
broadcast packets and packets of an unknown destination. For
example, a trunk of ports 11 to 15 uses port 11 for broadcast
packets.
 Because network equipment vendors tend to employ different
techniques for static trunks, a static trunk on one device might not
be compatible with the same feature on a device from a different
manufacturer. For this reason, Allied Telesis recommends using
this feature only between Allied Telesis network devices.