PASSIVE MONITORING OF NETWORK PERFORMANCE

摘要

The present invention relates to methods and arrangements to measure network performance. The method comprises the following steps: - Transmitting via a communication network (IP) payload packets (21-24) from a sending node (GGSN/A) to a receiving node (GGSN/B). - Generating at the sending node (GGSN/A) a send specification (s21-s24, sid21-sid24) for each of at least one selected packet (21-24) of the transmitted payload packets (21-24). - Generating at the receiving node (GGSN/B), a receive specification (r21-r22, rid21-rid22, siz21- siz22) for each of at least one selected packet (21-22) of the transmitted payload packets (21-24). - Bringing together generated send specifications (s21-s24, sid21-sid24) and generated receive specifications (r21-r22, rid21-rid22, siz21-siz22). - Estimating network performance by utilizing corresponding specifications (sll-sl2, rll-rl2, siz21-siz22) of the brought together specifications.