MLPoFR is actually either 10 or 11 bytes (my memory is failing me). In the SRND it states MLP is 13 bytes. The 13 bytes I can only imagine is a conservative estimate or is MLPoATM. It certainly is very conservative for MLPoFR.
I would clarify with the proctor- I would not use 13 + 4 = 17 bytes. Page 33 of the QoS SRND talks about these values and I would treat the 13 bytes listed for MLP as being appropriate for MLPoFR. -- Vik Malhi CCIE #13890, CCSI #31584 Senior Technical Instructor - IPexpert, Inc. Telephone: +1.810.326.1444 Fax: +1.810.454.0130 Mailto: vma...@ipexpert.com Join our free online support and peer group communities: http://www.IPexpert.com/communities IPexpert - The Global Leader in Self-Study, Classroom-Based, Video-On-Demand and Audio Certification Training Tools for the Cisco CCIE R&S Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE Voice Lab and CCIE Storage Lab Certifications. From: Ryan Trauernicht <ryanstudyvo...@gmail.com> Date: Wed, 14 Jan 2009 13:50:10 -0600 To: "ccie_voice@onlinestudylist.com" <ccie_voice@onlinestudylist.com> Subject: [OSL | CCIE_Voice] Layer 2 overhead Reading the SRND and a few other books on the WAN QOS... looks like FR layer 2 is not included in the page 33 statements. Vik can you confirm these are correct for layer 2 byte sizes. MLP in the SRST states it is 13 bytes for layer 2. That actually includes LFI MLP without LFI & FR = 10 bytes MLP with LFI and without FR = 13 bytes MLP with LFI & FR = 17 bytes FR = 4 bytes FRF.12 = 8 bytes anyone agree or disagree? Thanks, Ryan Trauernicht