Patent ID: 9306822
Filing Date: 2016-04-05
CPC Classification: H04L,H04M

Claim Text:
1. A method, comprising: performing a first diagnostic test on a first class of service on a network link; performing a second diagnostic test on a second class of service on the network link; generating a current failure alert if the first diagnostic test on the first class of service indicates data loss, and the second diagnostic test on the second class of service indicates no data loss, and a previous alert was present; performing a third diagnostic test on the first class of service on the network link; and generating the current failure alert if the third diagnostic test on the first class of service indicates data loss, the second diagnostic test on the second class of service indicates no data loss, and the previous alert was present, wherein the current failure alert is a silent trunk failure alert when the first and third diagnostic tests on the first class of service detect data loss.