[nsp] atm encapsulation overhead
gert at greenie.muc.de
Tue Nov 18 04:26:45 EST 2003
On Tue, Nov 18, 2003 at 10:03:00AM +0100, Iva Cabric wrote:
> > calculate it. they only deal with calculating and showing aal5snap.
> Difference between aal5mux and aal5snap is 8 bytes (LLC/SNAP). So Table
> 6, in PS document, states this:
> LLC/SNAP 1.37%
Unfortunately, that's not all of it. With aal5mux, a TCP ACK packet with
no data fits into *one* ATM cell, with aal5snap, you will always need two.
So for typical web traffic (data going one way, pure ACKs in the other
direction), aal5snap overhead is significantly higher.
I don't have numbers, though.
USENET is *not* the non-clickable part of WWW!
Gert Doering - Munich, Germany gert at greenie.muc.de
fax: +49-89-35655025 gert at net.informatik.tu-muenchen.de
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