Re: (PM) pm3 disconnects

Jon Ribbens (jon@oaktree.co.uk)
Wed, 31 Mar 1999 17:56:23 +0100

Richard Morrell <portmaster@ednet.co.uk> wrote:
> > Just to clear up any final confusion: if someone dials in using PPP, with
> > PPP configured on their TA also, they are sending PPP frames inside PPP
> > frames?
>
> No. They are always using PPP (unless they are using SLIP, but lets not
> go there just now). The PPP frames are then either encapsulated inside
> synchronous ISDN frames or V.120 frames (which go inside the synchronous
> ISDN frames).

Uhhhhhhhh. My brain hurts.

What does it mean if you set the TA to 'PPP mode' then? Are you saying it
means 'I am going to use PPP, please do something bizarre'? I had somewhat
assumed it meant 'Please use PPP to talk to the remote TA'. RFC 1618 talks
about a load of encoding stuff (NRZ etc) which makes no sense to me unless
it is the TA which is talking PPP not the computer.

(If the TA is packetizing the data, does it just wait until it has finished
sending data and then take all the data in its input buffer and use that as
the next packet, or what?)

(I tried setting a Courier I-Modem to 'PPP mode' (well, it calls it
'Asynchronous to synchronous PPP mode' or somesuch, which makes no sense)
and although Win95 DUN works over it, I cannot send text over it.
Which makes no sense either. Unless in PPP mode the TA is expecting PPP
packets on its serial wire and decoding them.)

Cheers

Jon

-- 
\/ Jon Ribbens / jon@oaktree.co.uk
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