Determine one-way performance parameters in a packet-switched communication subnet

摘要

The invention relates to the determination of one-way performance parameters when transmitting a packet in packet-switched communication subnets, in particular MPLS packets in an MPLS communication subnetwork, the packet being transmitted in a loop from a sender to a destination and back to the sender, and in this case a number of routers, wherein a router may be an internal router or an edge router representing a transition between the communication subnet and a connection network or termination of the communication subnet, and after completely looping through the one-way to be determined -Performance parameter associated measured value, which is assigned to this loop through total, with all on the loop between any two specific (edge) routers to be passed routes within the loop for a packet already set before its transmission so d with a number of n routes within the loop, with reference to n-1 routes within the loop, one-way performance calibration values corresponding to the one-way performance parameter to be determined can already be used, and the input to be determined Path-performance parameter is calculated in relation to the remaining route in functional dependence on the measured performance-value of the entire loop-through and the one-way-performance calibration values of the n-1 routes.