[nsp] atm encapsulation overhead

Iva Cabric ivac at iskon.hr
Tue Nov 18 04:03:00 EST 2003

On Tue, Nov 18, 2003 at 12:50:26AM -0800, Dan Hollis wrote:
> > You can find information about overheads in different protocols
> > (Ethernet, ATM, POS, ...) here:
> > <URL:http://sd.wareonearth.com/~phil/net/overhead/>
> > On that page, under ATM section, is link to PS document which gives
> > details about overhead in IP/ATM networks.
> sadly the page and document merely describes aal5mux, but does not 
> 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%

For aal5mux, just ignore that number and that's all (keep in mind
percentage is calculated for MTU = 576 bytes, so YMMV).

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