Variable AAA load distribution for PDSN

A packet data serving node (PDSN) for managing sessions between mobile devices and a packet-based network, including making requests to and receiving responses from an authentication, authorization, and accounting (AAA) server, the PDSN comprising:

• a packet session manager configured to create, maintain, and terminate the sessions between the mobile devices and the packet-based network;
• and
• a global AAA manager configured to:
• determine a latency in communication between the PDSN and the AAA server based on a latency in a response from the AAA server to at least one request which the PDSN sends to the AAA server;
• determine an adjustment in a load which all communications from the PDSN to the AAA server may collectively impose on the AAA server based on the determined latency;
• and
• cause the determined adjustment in the load which all communications from the PDSN may collectively impose on the AAA server to be implemented
• wherein the packet session manager and the global AAA manager each include computer hardware, including one or more processors and memory devices.

A tangible, non-transitory, computer-readable, storage medium containing computer-readable instructions which are configured to cause a computer system to:

• determine a latency in communication between the PDSN and the AAA server based on latencies in responses from the AAA server to at least two requests which the PDSN sends to the AAA server;
• determine an adjustment in a load which may be imposed on the AAA sever based on the determined latency;
• and
• cause the determined adjustment in the load which may be imposed on the AAA server to be implemented.

A tangible, non-transitory, computer-readable, storage medium containing computer-readable instructions which are configured to cause a computer system to:

• determine a latency in communication between the PDSN and the AAA server based on a latency in a response from the AAA server to at least one request which the PDSN sends to the AAA server;
• determine an adjustment in a load which all communications from the PDSN to the AAA server may collectively impose on the AAA server based on the determined latency;
• and
• cause the determined adjustment in the load which all communications from the PDSN may collectively impose on the AAA server to be implemented.