RS> Dunno, I think that the Spirit is notorious for poor thruput with MR
 RS> blinking is very powerful evidence that cant be ignored.

Not with the symptoms we have.

 PE>> In fact, it is an intermittent problem (we ourselves get good
 PE>> connects), so it must be some strange thing that triggers it off.

 RS> Yeah, I think its likely that its getting confused by something, not
 RS> reacting properly to that. It may well be that it sees the need to
 RS> resend a block, then goes stupid and resends all the blocks after that
 RS> twice. Thats precisely what the unrelated MNP4 bug was doing. Thats
 RS> still there in some modems. Very well documented by Microcom, the owners
 RS> of MNP.

Not hardware either, which is what the Spirit problem WAS.

 PE>> What we really need is something between the modems to find out if
 PE>> you are asking for the retransmission, or I am imagining I need to
 PE>> retransmit.

 RS> I dont think that will help if for example mine asks validly for a
 RS> retransmission of a single block and yours goes mental and sends them all
 RS> twice after that.

That is all I need.  If you ask for retransmission once, and my modem sends
every block twice, then the problem is clearly in the Spirit. If on the
other hand *you* are asking for retranmission on every block, then the
fault is in your end.

 PE>> How about you write the questions I need to ask in the appropriate
 PE>> echos, and I'll send them, saying "One of my users using
XYZ modem got
 PE>> erroABC r".

 RS> I dont think it helps to know which is asking. The normal thing to do in
 RS> this situation is a full diagnostic comms analyser that allows you to
 RS> see the detail of whats happening to the V42 protocol stream. Thats 10K$s
 RS> gear, people dont own them, modem developers do.

Of course it helps to know who is asking.  It isolates the faulty modem
immediately.  So we need to ask our respective modem manufacturers if they
have tested it out with the other person's modem.

 RS> I dont think this quote is insignificant.

[quote deleted]

I don't get any information from it.

BFN.

Paul

--- GoldED 2.40