My last post on this, I promise! Very nice explanation and intro doc
here:
http://www.cisco.com/warp/public/133/x25_over_isdn.html
""Cthulu"" <[EMAIL PROTECTED]> wrote in message
94kmc4$jie$[EMAIL PROTECTED]">news:94kmc4$jie$[EMAIL PROTECTED]...
> Brian,
>
> Thanks for keeping this thread alive. There is a nice Protocols document
> at the link here that talks very briefly about using the D channel for
data
> transport X.25, which certainly sounds like the setup you described to
me).
> It does not give a specific router config, but certainly a start...
>
>
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/82/access/fpmpcm/fpcmc
> h06.htm#xtocid105684
>
>
> Charles
>
>
> ""Brian Lodwick"" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > I'll try to set this up and write a config for the list if I can figure
> out
> > how to set it up on a Cisco router. I don't fully understand the thing.
> >
> > >>>Brian
> >
> >
> > >From: Ganesh S Unavane <[EMAIL PROTECTED]>
> > >To: 'Brian Lodwick' <[EMAIL PROTECTED]>
> > >Subject: RE: ISDN D channel packet switchin
> > >Date: Tue, 23 Jan 2001 07:35:17 -0800
> > >
> > >hi brian,
> > >
> > >how do u use this exactly ?? i have not come across an configs ??
> > >
> > >can u share with me a sample one ??
> > >
> > >thanks
> > >
> > >Gan�sh
> > >
> > >-----Original Message-----
> > >From: Brian Lodwick [mailto:[EMAIL PROTECTED]]
> > >Sent: Tuesday, January 23, 2001 8:44 PM
> > >To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> > >Subject: Re: ISDN D channel packet switchin
> > >
> > >
> > >Cthulu,
> > >We (the company I work for) employs a way to fully utilize the entire
> > >bandwidth of an ISDN connection. Now as you know the job of this link
is
> > >for
> > >
> > >call setup, call teardown, and timing. Well the timing is the only one
> > >being
> > >
> > >used once the connection is up until the connection is requested to
> > >teardown. This timing does not use the entire 16K (BRI). So we run POS
> > >(point of sale i.e. VISA and such) transactions over this link
> (controlled
> > >&
> > >
> > >very low bandwidth 2.4k usually) That way the customer can fully
utilize
> > >the
> > >
> > >B's with regular data traffic, and more efficiently utilize the D
> channel's
> > >bandwidth.
> > >
> > > >>>Brian
> > >
> > >
> > > >From: "Cthulu" <[EMAIL PROTECTED]>
> > > >Reply-To: "Cthulu" <[EMAIL PROTECTED]>
> > > >To: [EMAIL PROTECTED]
> > > >Subject: ISDN D channel packet switchin
> > > >Date: Tue, 23 Jan 2001 07:43:30 -0600
> > > >
> > > >Hi, all
> > > >
> > > >I am reading the 2nd edition of Caslow's book, and am on the ISDN
> > >chapter.
> > > >In one sentence, he states that the D channel may be used for packet
> > > >switching.
> > > >I have read other texts that have said the same thing, but I have yet
> to
> > > >find one that expounds on it. This seems quite contrary to the
> > >countless
> > > >instructors, books, etc. that have stated that the D channel is NOT
for
> > > >data
> > > >transport, and that the B channels (and H channels under PRI) are the
> > >only
> > > >ones used to move data. By data, I mean data, voice, video.
> > > >
> > > >
> > > >So, here's my guess:
> > > >
> > > >When these texts say that the D channel may be used for packet
> switching,
> > >I
> > > >envision a X.25 type setup where the switches all switch "stuff"
> between
> > > >themselves? No? Who's laughing?
> > > >
> > > >How about this:
> > > >
> > > >Special applications (devices) may use the D channel to transport
data
> > >when
> > > >it's not being used for D channel stuff like talkin' to the switch?
> No?
> > > >
> > > >
> > > >How about this:
> > > >
> > > >Caslow, et al are making fun of me again. No?
> > > >
> > > >
> > > >TIA,
> > > >
> > > >Charles
> > > >
> > > >
> > > >
> > > >_________________________________
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