[ee122] hmwk problem Number 2.16

Vern Paxson vern at icir.org
Fri Sep 21 10:25:08 PDT 2007

> I'm not sure I understand.  (in a real life problem) why wouldn't we need to
> know the size of the frame header just because we are given the MTU?

(per the note I just sent, because if we're given a value for MTU without
anything specific regarding the link layer, then we assume the MTU doesn't
include the frame header size)

> Wouldn't we try to find the amount of 'real data' that could fit by doing
> something along the lines of MTU - frame header size - IP header size -
> Layer 4 header size?

Note, since the problem is about IP (network layer), the Layer 4 header
size doesn't enter into the picture.


More information about the ee122 mailing list