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RE: Q:Why router with ATM interface comes out earlier than pure SONET interface?

  • From: Christian Kuhtz
  • Date: Mon Aug 03 18:48:21 1998

> |  	Okay, so given all the great features that ATM is supposed to have
> |  and the only thing that really sucks about it is the overhead
> due to the 53
> |  byte cell size, the obvious question is why can't there be an
> ATM standard
> |  with, say, 197 ( 4 times the current 48 byte payload) or even 389 ( 8
> |  times 48 ) byte cells?
> |  	Is there something magic about 53 or is the IP over ATM application
> |  still so 'obscure' that there is no interest?
> Increasing the cell size lowers the efficiency further.
> 53 is an ATM architectural constant.  Change it, and it's no longer ATM.
> Change it, and you're no longer interoperable.
> Tony

Why not just make ATM variable cell size altogether?

Tongue planted firmly in cheek,

PS: Actually, overhead is not "the only thing that really sucks".  Being
connection-oriented at the transport layer is another.

Christian Kuhtz, BellSouth Corp., Sr. Network Architect  <[email protected]>
1100 Ashwood Parkway, Atlanta, GA 30338                        <[email protected]>
"Turnaucka's Law: The attention span of a computer is only as long as its
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