Patent ID: 7272649
Filing Date: 2007-09-18
Classification: G06F,H04L

Abstract:
1. A method for a Max Sessions Server (MSS) of a data communications network to keep a count of the sessions used at a given time by a group of users and to correct the count to compensate for abnormal disconnections of users belonging to the group, the method comprising: assigning a unique identification value (UIV) to each port of a network access server (NAS) of the data communications network; maintaining a master list having a plurality of entries, each entry containing at least (a) a UIV for a port associated with a logged in user and (b) respective group identification information for the logged in user; periodically checking a NAS to determine if it has become non-operational; and responding to the non-operational status of a NAS by removing all entries having UIVs for ports associated with the non-operational NAS from the master list and decrementing the count of the sessions used by the number of removed entries that correspond to the group, wherein the assigning includes performing a concatenation, for each port of the NAS, of a unique identifier for the NAS and a port identifier for the port.