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User Manual
3onedata proprietary and confidential
Copyright © 3onedata Co., Ltd.
181
Cast
Selection of LBM PDU transmitted unicast or multi-cast. The unicast MAC will be
configured through 'Peer MEP' or 'Unicast Peer MAC'. To-wards MIP only unicast Loop
Back is possible.
Peer MEP
This is only used if the 'Unicast MAC' is configured to all zero. The LBM unicast MAC
will be taken from the 'Unicast Peer MAC' configuration of this peer.
Unicast MAC
This is only used if NOT configured to all zero. This will be used as the LBM PDU
unicast MAC. This is the only way to configure Loop Back to-wards a MIP.
Transmitted
The number of LBM PDU to send in one loop test. The value 0 indicate infinite
transmission (test behaviour). This is HW based LBM/LBR and Requires VOE.
Size
The LBM frame size. This is entered as the wanted size (in bytes) of a un-tagged frame
containing LBM OAM PDU - including CRC (four bytes).
Example when 'Size' = 64 => Un-tagged frame size = DMAC(6) + SMAC(6) + TYPE(2)
+ TST PDU LENGTH(46) + CRC(4) = 64 bytes
The transmitted frame will be four bytes longer for each tag added - 8 bytes in case of
a tunnel EVC.
There are two frame MAX sizes to consider.
Switch RX frame MAX size: The MAX frame size (all inclusive) accepted on the switch
port of 9600 Bytes
CPU RX frame MAX size: The MAX frame size (all inclusive) possible to copy to CPU
of 1526 Bytes
Consider that the Peer MEP must be able to handle the selected frame size. Consider
that In case of SW based MEP, the received LBR PDU must be copied to CPU
Warning will be given if selected frame size exceeds the CPU RX frame MAX size
Frame MIN Size is 64 Bytes.
Interval
The interval between transmitting LBM PDU. In 10 ms. If 'To Send' != 0 (max 100 -
'0' is as fast as possible) in 1us. If ‘To Send’ == 0 (max 10.000)”,
Loop Back State