User's Manual

Set SA filtering to disabled or drop on unlock (PORT-0x04:14 SAFiltering[0]=0)
Safe procedure:
Disable or block the ports (PORT-04.1 PortState[1]=0).
Flush all non-static adresses in the ATU.
Define the desired limit for the ports.
Re-enable the ports.
SA priority
override
When any other than "none" mode is selected, SA ATU priority overrides can occur
on this port. An SA ATU priority override occurs when the source address of a frame
results in an ATU hit where the SA's MAC address returns an EntryState that indicates
Priority Override. When this happens three forms of priority overrides are possible
(other than none):
Normal frame priority processing is active.none
PRI value assigned to the frame's SA (the MAC priority field in the
ATU database) is used to overwrite the frame's previously determined
frame
frame priority (FPri). If the frame egresses, the tagged priority in the
frame will be this new PRI value.
The two upper bits of the PRI value assigned to the frame's SA (the
MAC priority field in the ATU database) are used to overwrite the
queue
frame's previously determined queue priority (QPri). The QPri is used
internally to map the frame to one of the egress queues inside the
switch. QPri override will not affect the contents of the frame in any
way.
Both above overrides take effect on the frameframe+queue
The SA ATU Priority Override has a higher priority than the port's Default Priority, the
frame's IEEE and/or IP priorities and the VTU Priority Override. The priority determined
by the frame's SA can however be overridden, by the frame's DA Priority Override.
DA priority
override
When any other than none mode is selected, the DA ATU priority overrides can occur
on this port. A DA ATU priority override occurs when the source address of a frame
results in an ATU hit where the DA's MAC address returns an EntryState that indicates
Priority Override. When this occurs three forms of priority overrides are possible
(other than none):
Normal frame priority processing is active.none
PRI value assigned to the frame's DA (the MAC priority field in the
ATU database) is used to overwrite the frame's previously determined
frame
frame priority (FPri). If the frame egresses the tagged priority in the
frame will be the new PRI value.
The two upper bits of the PRI value assigned to the frame's DA (the
MAC priority field in the ATU database) are used to overwrite the
queue
frame's previously determined queue priority (QPri). The QPri is used
internally to map the frame to one of the egress queues inside the
switch. QPri override will not affect the contents of the frame in any
way.
Both of the above overrides take place on the frameframe+queue
The DA ATU Priority Override has the highest priority over the port's Default Priority,
the frame's IEEE and/or IP priorities, the VTU Priority Override and the SA Priority
Override.
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