Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network access regulating
Reexamination Certificate
2007-09-18
2007-09-18
Caldwell, Andrew (Department: 2142)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network access regulating
C709S226000
Reexamination Certificate
active
09410511
ABSTRACT:
A Max Sessions Server (MSS) automatically detects hardware and communications failures. Upon detection, counters are adjusted accordingly to maintain an accurate count of users or groups of users on a system. A database of unique identifiers for each connection is maintained, where the unique identifier is a concatenation of a Network Access Server (NAS) and the connection's incoming NAS node number. If a user requests permission to log into the system, the MSS first checks the database to determine if the unique identifier is already logged in. If so, then a hardware or communications failure has occurred and the MSS must make the appropriate adjustments to the database and counter. Additionally, the MSS or an authentication, authorization and accounting (AAA) server will periodically check to determine if an NAS has ceased communicating over a particular length of time and relay any failures to the MSS. If the NAS has experienced a hardware or communications failure, then the MSS must make the appropriate adjustments to the database and counters for all sessions logged in from the failed NAS. Finally, the MSS may broadcast the failure to all MSSs associated with the NAS on the system.
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Boyd Pauline Chen
Bui Sonny
Knight John
Patil Kavita Shekhar
Roden Thomas Anthony
Blair Douglas
Caldwell Andrew
Cisco Technology Inc.
Ritchie David B.
Thelen Reid Brown Raysman & Steiner LLP
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