ATM cell header is 5 bytes, payload is 48, cell is total 53, regardless of NNI or UNI structure. http://en.wikipedia.org/wiki/Asynchronous_Transfer_Mode#Cell_size is a great read on this.
Matt On Wed, May 15, 2013 at 6:37 AM, Tony Singh <[email protected]> wrote: > > Should ref the RFC's here but from my head > > Frame relay 4 bytes > PPP 8 bytes > ATM are fixed length 53 byte cells > > -- > BR > > Tony > > Sent from my iPad > > On 15 May 2013, at 12:10, Imran Ali <[email protected]> wrote: > > > while calculating pakcket sizes all legacy qos technologies conisder > > layer 2 header size , be it CQ , or DE list , etc > > it would be nice if some one can give me header size of PPP and frame > > relay links > > > > Also this can be good reference note for all ccie candidates . > > > > HDLC= 4 BYTES > > PPP > > FRAME RELAY > > ATM > > > > thanks > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, > please visit www.ipexpert.com > > > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
