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AAL2 Signaling Query

  • From: "sumit kasera" <s.kasera@lycos.com>
  • Date: Mon, 24 Jul 2000 23:04:20 -0700
  • Organization: Lycos Communications (http://comm.lycos.com:80)
  • X-Sender-Ip: 202.56.217.4
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Hi all,
I am working on AAL2 Signaling protocol based on ITUT standard Q.2630. I went through it and there were certain things that I found rather strange. The most important being the concept of AAL2 network, an overlay over existing network. My idea was that AALs operated end to end. More specifically, I do not understand what is the function of an AAL type2 switch, and why does it perform routing function. 

Also, i did not like the notion of transport converters. I thought signaling could operate over one of the AAL2 channels using CID. 

In essence, the standard was rather complicated because of 1) Notion of AAL2 network  and 2) generic transport converters.

Could someone kindly elucidate on these two concepts.

Thanks and regards,
sumit kasera


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