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AT-GS950/16PS Switch Web Interface User’s Guide
105
System Priority
It is possible for two devices interconnected by an aggregate trunk to
encounter a conflict when they form the trunk. For example, the two
devices might not support the same number of active ports in an
aggregate trunk or might not agree on which ports are active and which
are in standby mode.
If a conflict does occur, the two devices need a mechanism for resolving
the problem and deciding whose LACP settings take precedence. This is
the function of the system LACP priority value. This value is used
whenever the devices encounter a conflict creating a trunk - the lower the
number, the higher the priority. As a result, the settings on the device with
the higher priority take precedence over the settings on the other device. If
both devices have the same system LACP priority value, the settings on
the switch with the lowest MAC address take precedence. In the AT-S112
Management software, the MAC address is called the System ID.
The LACP System Priority is pre-assigned and you cannot alter this
parameter.