NEC SMB8000 Manual page 13

SMB8000
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The Main board receiving this broadcast message will acknowledge by sending port
identification information to the Add-on board and a board type (i.e. Add-on 1, Add-on
2, etc.).
The board type will identify the Add-on board to system (Main ETIA) of its port
assignments. A board type of "Add-on 1" will be Ports 9~16. A board type of "Add-on
2" will be Ports 17~24. A ETIA that has been designated as the "Main" board will
always be assigned Ports 1~8.
Stacking Port Number determination
When a Main board is initialized, it assigns the first eight ports as port 1 through 8.
When subsequent add-on boards' broadcast messages are received, the CCPU, by
manual means or any other means, will assign a Board Type to the Add-on card. This
will automatically assign its port numbers.
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The grouping of the three ETIA units to form a 24-port switch is restricted to reside in
a single system location. Stacking is not supported for those ETIA units in remote
locations supporting the NetLink feature.
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Gigabit PoE Switch Manual
On power up, all ETIA boards are assigned as Main boards, or generic Add-on boards
(by no IP address or IP address of 0). In order to include the Add-on boards as part of
the managed stack and assign port numbers, the CCPU will send a "Board Type"
message to the Add-on card. This will identify the port assignment of the Add-on card to
the Main card for stacking.
Issue 3.0
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