Date: Sat, 20 Oct 2001 12:33:10 +0200 From: Luuk van Dijk <lvd@mndmttr.nl> To: freebsd-isdn@freebsd.org Subject: Userland PPP with MP brings second isdn link up only once Message-ID: <3BD152E5.80891CCB@mndmttr.nl>
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L.S.
I'm using userland ppp on FreeBSD 4.2 to connect
to an Ascend Max2000 router over an ISDN-2
line. The ascend is configured to speak MP
(rather than MPP, though I don't know the difference),
and everything works fine ... EXCEPT that the MP
negotiation to bring up the second link works only
once:
I start ppp -auto, with no trafic, then I generate
some traffic, which results in the line being brought up
then I generate some more traffic, causing the second
line to be brought up, then I stop the heavy traffic,
but keep some traffic running, and after the autoload
measurement delay the second line is dropped.
So far so good.
If I now start the heavy traffic again, saturating
the single channel, the second channel will not be opened.
If I do this, and use pppctl to fiddle with the
autoload detection parameters , eg setting min from 30 to 29,
the second channel will be started again after the measurement delay.
Otherwise, if stop all traffic, the line dies
after the timeout, and if the line is reopened the second channel
can be used again, but again only once.
I turned on lots of logging & debugging options, but there is no hint as
to what might be going on.
The userland PPP config is
isdn:
set phone 0123456789
set authname my-gw
set authkey ReallySecret
set enddisc psn 0987654321
enable lqr
set reconnect 3 5
set redial 3 10
set lqrperiod 45
disable pred1 deflate
deny pred1 deflate
set timeout 20
set dial
set login
set hangup
set device /dev/i4brbch0 /dev/i4brbch1
set speed sync
set bandwidth 65536
link * set cd 12
set ifaddr 10.255.4.1/8 10.255.0.1/8
add! default hisaddr
set mrru 1500
clone 1,2
link deflink rm
link * set mode auto
set autoload 30 50 10
set server /var/run/pppctl "" 0177
Apart from the fact that the Ascend is set to MP, I'm afraid I don't
have the details of its config available at the moment, nor the
logfiles.
Any clues what to look out for would be appreciated.
Thanks,
Luuk van Dijk
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