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AAL5 CRC and TCP.

  • From: medved@npr.legent.com (Pat Medved)
  • Date: Mon, 23 Oct 95 13:02:06 CDT



The AAL5 specification calls for AAL5 to do a CRC for each cell.
With this being done, and the fact that lines today
are better than when TCP was first implemented, is there
still a need to do a checksum in TCP when running over ATM?

I was wondering if most people think not doing the checksum
would be safe.

I could see an option to TCP where as part of
negotiation, we negotiate whether or not to do checksums.
This would save on one of the biggest CPU users in
TCP/IP processing.

Any comments or reasons why this should not be done?


Pat Medved

medved@npr.legent.com