Re: BACP problem? (Re: (PM) OSPF summaries, E2 vs. E1 type ASE

Miquel van Smoorenburg (list-portmaster-users@news.cistron.nl)
5 May 1999 14:33:46 +0200

In article <cistron.l03130307b354a8349b34@[130.104.10.52]>,
Alain Fontaine (Post master, UCL) <fontaine@sri.ucl.ac.be> wrote:
>I also fought that same BACP bug, with exactly the same result (an answer
>from someone who cannot apparently read five lines of english in a RFC and
>understand what they mean). That was when 3.8 was current.
>
>I recently had to look again (now running 3.8.2) and found:
>010300 + Subop: 1, Length: 3 Unique-Digits: 0
>Look at the 'Unique-Digits' value... No, I won't reinstall 3.8 just to check
>if I dreamed.

I can confirm that:

Received BAP_CALL_REQUEST on port S40 of 7 bytes containing:
01 01 00 0b Code 1, ID 1, Length 11 Call-Request
01 05 Op 1, Length 5
00 40 Link speed 64Kb
01 Link type 1
03 02 Op 3, Length 2 (no phone number needed) [*1]

Sending BAP_CALL_RESPONSE to port S40 of 19 bytes containing:

02 01 00 13 Code 2, ID 1, Length 19 Call-Response
00 Response code 0 (Request-Ack)
02 0e Op 2, Length 14 Phone-Delta
01 03 00 Subop 1, Length 3 Unique-Digits: 0 [*2]
02 09 38 38 30 30 39 39 39 Subop 2, Length 9 Subscriber-Number: 8800999

[*1] note that even though the client says "do not send me a phone number"
the portmaster still sends it - this is against RFC2125, but I
don't think it hurts.

[*2] LOOK! It includes the Unique-Digits: 0 suboption we have been asking
for all this time. It's undocumented, but ComOS 3.8.2 does actually
get this right !

The only thing that is now missing is that the portmaster will not
ever initiate a Callback-Request as far as I can see. It would be
nice if this was configurable, eg "set bacp-cb-treshold 90" or so.

Mike.

-- 
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