[RPRWG] Question on State Table 9.13, Receive Fairness Frame

[Fredrik Davik <bjornfd@xxxxxxxxx>]

In row 2, when receiving a single choke fairness message from
downstream neighboor, where:

frame.fairRate == FULL_RATE
frame.saCompact != myMacAddress
frame.ri == myRingletID

I.e. a message that that it is ok for the upstream station to increase
its send rate.

Shouldn't also the hopsToCongestion be set to MAX_STATIONS in the last
else (in addition to setting downstreamCongested = FALSE)?

Otherwise the SendC signal sent to the client is whatever the previous
value of hopsToCongestion was...

A definite error in the same row (line 13) is that rcvdSa is set to
frame.sa. It should be set to frame.saCompact as fairness messages
does not have a sa field (why did fairness frame have a different
header format again ;)...

Best Regards, 
Fredrik 
---------------------------------------------
Fredrik Davik
                 Phone:       +47 67 82 83 88
                 Mobile:      +47 45 24 91 88
                 Fax:         +47 67 82 82 01
                 Switchboard: +47 67 82 82 00

mailto:bjornfd@xxxxxxxxx

http://heim.ifi.uio.no/~bjornfd
http://www.simula.no/people_one.php?people_id=22

Simula Research Laboratory
P.O.Box 134, Lysaker
N-1325 Lysaker
Norway