Method and system for dynamic traffic prioritization

摘要

A method provides for the dynamic traffic prioritization in a communication network. The method electronically monitors traffic in a communication network and determines when traffic exceeds configured thresholds on the links of the communication network. Thus, the method determines a link which is potentially about to be congested in the communication network. The method categorizes the traffic on this link by an end system attached to one end of the potentially congested link into a plurality of priority categories using application layer parameters. Using a re-direct capability of the end system, the method re-directs at least one of the pluralities of priority categories of traffic to an alternate Internet Protocol address. The method uses preconfigured Quality of Service mechanisms on the provider edge router attached to the other end of the potentially congested link to guarantee a predetermined amount of bandwidth capacity of the link to traffic destined to the alternate Internet Protocol address.

主权项

1. A method for providing dynamic traffic prioritization in a communication network, the method comprising:
electronically monitoring traffic in the communication network that includes a provider network, an Edge Router, a primary Session Initiated Protocol (SIP) proxy server, and a local network; preconfiguring the Edge Router to guarantee a preconfigured amount of bandwidth to priority categories of traffic redirected to a first alternate Internet Protocol address assigned to a first alternate SIP proxy server during congestion; determining when traffic utilization on a communication link between the Edge Router and the primary SIP proxy server exceeds a predetermined threshold; assigning the preconfigured amount of bandwidth to the priority categories of traffic to initiate dynamic traffic prioritization in the Edge Router when the predetermined threshold is exceeded; categorizing traffic in the Edge Router into a plurality of priority categories; redirecting one priority category of traffic of the plurality of priority categories of traffic to the first alternate Internet Protocol address assigned to the first alternate SIP proxy server; and providing Quality of Service (QoS) priority to traffic destined to the first alternate Internet Protocol address on the Edge Router for transmission over the communication link using the preconfigured amount of bandwidth, wherein a second alternate Internet Protocol address assigned to a second alternate SIP proxy server is used after a predetermined period of time to redirect the one priority category of traffic to conceal an identity of an alternate Internet Protocol address being used.