By knowing the packet size, next what?? On Sun, Mar 1, 2015 at 7:19 AM, Jonathan Morton wrote: > If you know the size of the packets that will be using it, then it is > simple to cover from one to the other. That's more likely in a simulator > than the real world though. > > IIRC, TCP acks are usually 48 bytes, but this may vary if extension > options and/or IPv6 are in use. Check this yourself on the traffic you're > testing. In the forward data flow direction, expect most packets to be at > the link segment size limit, 1500 bytes for Ethernet. > > But if you have heterogeneous or bidirectional traffic, this calculation > breaks down. This may simply be one limitation of ns2. > > - Jonathan Morton >