NEC Electra Elite IPK Programming Manual page 469

Document Revision 4
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Related Programming
M.B. Number Memory Block Name
7-1 Card Interface Slot Selection
1-16-00 Auto Negotiation Yes/No Selection
1-16-01 Port Speed Selection – 10/100 Base T
1-16-02 Port Duplex Mode Selection
1-16-03
MDI/MDIX Mode Selection
1-16-04
VLAN Mode Selection
1-16-05
Default VLAN ID Tag Insertion Assignment
1-16-07
High Priority RX Tag Threshold
1-16-08 High Priority TX Tag Assignment
1-16-09 Low Priority TX Tag Assignment
1-16-10 Port Mirroring Selection
1-16-11 Mirroring Source Port Assignment
1-16-12 Mirroring Target Port Assignment
1-16-13 VLAN Group to VLAN ID Assignment
1-16-14
Port VLAN Group Membership
1-16-15
VLAN Tag Insertion Selection
1-16-16
Flow Control for Full Duplex Selection
1-16-17
Back Pressure for Half Duplex Selection
1. Only one HUB(8)-U( ) ETU can be assigned and installed for each cabinet.
2. In networks, QoS indicates that transmission rates, error rates, and other characteristics can be measured,
improved, and to some extent, guaranteed in advance. QoS is particularly important for continuous transmission
of high-bandwidth video, multimedia, and voice information.
3. The HUB(8)-U( ) ETU has two priority assignment methods: Port Based Priority ( frame received) or Tag Based
Priority. Unknown Unicast Frames are always set for Low priority.
The Port Based Priority feature can assign priority of all frame except the Unknown Unicast Packets.
The priority of received packets is always that assigned by this Memory Block.
4. When LO or HI is selected, QoS mode follows the setting of this system data only, even when a tagged frame is
received.
5. When NO is selected, the priority of a received frame follows the value of the priority field of the Tag in the
received frame. Low or high priority depends on the setting of Memory Block 1-16-07 (High Priority RX Tag
Threshold).
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Notes
Electra Elite IPK
Memory Blocks