Allied Telesis AT-GS950/48 - Manual (Page 114)

Chapter 7: LACP Port Trunks
114
 Prior to creating an aggregate trunk between an Allied
Telesis device and another vendor’s device, refer to
the vendor’s documentation to determine the
maximum number of active ports the device can
support in a trunk. If the number is less than eight, the
maximum number for the AT-GS950/48 switch, you
should assign the other vendor’s device a higher
system LACP priority than your AT-GS950/48 switch.
This can help avoid a conflict between the devices if
some ports are placed in the standby mode when the
devices create the trunk. For background information,
refer to “System Priority” on page 111.
 LACPDU packets are transmitted as untagged
packets.