Re[2]: [oc] Developer

[Claus Schrøder <crs@ipsemiconductors.com>]

Hello Juergen,

Tuesday, March 14, 2000, 10:39:30 AM, you wrote:

JA> Hi David!,

JA> AAL stands for ATM Adaption Layer. The x stands for digits from 0 to 5,
JA> and describes diverent flavors of AALs. The most popular is AAL5 which
JA> is thought as the glue between legacy data networks and ATM. E.g. is the
JA> AAL for unspecified - and available bit rate services (UBR and ABR
JA> respectively). It pads a frame to a multiple of 48 bytes and cuts them
JA> down into pieces of 48 bytes so that they fit into the ATM cell payload.
JA> It may be that also CRC is done before, so a CRC fielt has to be added
JA> befor the frame is padded, but I'm not sure about that. At the receiving
JA> side of course the frame is reassambled again. Thats is a very general
JA> overview. How the interaction in technical terms with ATM layer works
JA> works, sorry I've no idea about it. May be another one may it point out.

JA> cheers

JA> Juergen

JA> David Fong wrote:
>> 
>> Hi,
>> 
>> I am interested in this ATM AALx project.
>> 
>> What is AALx?
>> 
>> I know a little about ATM but not AALx.
>> 
>> Regards,
>> 
>> David Fong


And AAL1 is also used a lot…for DSL, live video & audio.

-- 
Best regards,
 Claus                            mailto:crs@ipsemiconductors.com