How IPMP Addresses the Requirements

One packet exchange measures path and latencies
Provides Integrated path and delay measurements
Low overhead

IP header plus queue type field
Ability to measure different ToS/DiffServ/protocol/application streams


Cost of path record creation minimised, fixed field positions, don't adjust timestamps to real time, info request reply
very low, overhead in routers (equivalent of 15-20 instructions)
DoS resistant
Support in-kernel timestamps at end hosts
Get as much information about clocks as possible
Relates interface to router