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- Path: sparky!uunet!mcsun!uknet!pavo.csi.cam.ac.uk!cl.cam.ac.uk!dm
- From: dm@cl.cam.ac.uk (Derek McAuley)
- Newsgroups: comp.dcom.cell-relay
- Subject: Re: Bare Bones Adaptation
- Message-ID: <1992Sep2.222815.9025@infodev.cam.ac.uk>
- Date: 2 Sep 92 22:28:15 GMT
- References: <1992Sep1.154417.10424@iscnvx.lmsc.lockheed.com> <1992Sep2.043325.2784@adaptive.com>
- Sender: news@infodev.cam.ac.uk (USENET news)
- Reply-To: dm@cl.cam.ac.uk (Derek McAuley)
- Organization: U of Cambridge Comp Lab, UK
- Lines: 21
- Nntp-Posting-Host: ely.cl.cam.ac.uk
-
- In article <1992Sep2.043325.2784@adaptive.com> george@hal (George Marshall) writes:
- >>Is this the bare bones adaption layer?
- >
- >For a continuous bit stream source as you described, there are other
- >(simpler?) adaptation layers defined/contemplated:
- >
- >AAL1 (Class A) is a "Constant Bit Rate" AAL; this AAL is intended for
- >use in emulating a real (as opposed to virtual) circuit service;
-
- A *real* circuit; what you mean I can get 5 volts down it |-)
-
- Seriously, is AAL5 *the* bare bones adapt(at)ion layer, or did it
- simply force the CCITT to realise they hadn't solved all the worlds
- future networking problems with AAL1/2/3/4, and hence couldn't get
- away with defining the BISDN UNI and signalling in these overly
- simplistic terms? (Rhetorical.)
-
- In UK political terms I think AAL5 would be referred to as a Stalking
- Horse.
-
- Mac.
-