[ns] RET and CBK

[boo sunn <mobicom2002@yahoo.com>]

hi:

I am modifying AODV to send a control packet P, say
from S to D. Suppose the path is S -> D1 -> D2 -> D3
->D. I look at the trace file, and find that P gets
lost at D2, and the reason is "RET :
DROP_MAC_RETRY_COUNT_EXCEEDED", what is this? and what
is the possible
reason for this?

and what is "CBK", also what is the possible reason
for it?

Thanks,

sun bo


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