Nokia Ethernet bridge adapters 100BASE-T - Manual (Page 12)

Product Overview
12 (14) © Nokia Corporation
DN0610789
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Product features
3.1 Bridge
All received frames are forwared transparently to the WAN.
Receive buffer size 1728 MAC frames
Transmit buffer size 320 MAC frames
Receive buffer is queue for data that was received from the Ethernet (LAN) to
be transmitted to the HDLC (WAN).
Transmit buffer is for data that was received from the WAN to be transmitted
to the Ethernet.
Receive buffer high watermark 1632 MAC frames
Receive buffer low watermark 1536 MAC frames
If the receive buffer size exceeds higher watermark, the ET adapter will send a
pause frame to LAN. Pause frame is sent every time when a frame is received
from LAN until the low watermak is reached. The pause frame is sent to a
multicast destination address 01-80-C2-00-00-01. Pause time parameter of
pause frame is 80 slots. Pause frame is sent only when full duplex mode is
selected.
3.2 LAN
Selectable configuration 10 Mbps and half duplex
10 Mbps and full duplex
100 Mbps and full duplex