Patent ID: 8472384
Filing Date: 2013-06-25
Classification: H04L,H04W

Abstract:
1. A method comprising: receiving, by a network device, a first general packet radio service (GPRS) tunneling protocol (GTP) tunnel packet that includes tunnel identification information corresponding to a GTP tunnel; determining, by the network device, that the tunnel identification information of the first GTP tunnel packet matches information in a list of interception identifiers; intercepting, by the network device, the first GTP tunnel packet after determining that the tunnel identification information of the first GTP tunnel packet matches the information in the list of interception identifiers; tracking, by the network device, a start time for the GTP tunnel based on a time of receiving the first GTP tunnel packet; transmitting, by the network device, the first GTP tunnel packet to an endpoint of the GTP tunnel; and tracking, by the network device, a stop time for the GTP tunnel based on a time of transmitting a final GTP tunnel packet to the endpoint of the GTP tunnel,