System and method for assisting in controlling real-time transport protocol flow through multiple networks via screening
First Claim
1. A system for screening a real-time transport protocol route advertisement communicated between adjacent Internet telephony administrative domains prior to comparing an advertised route to a policy, comprising:
- a database server confimired to store at least one policy, the at least one policy comprising attributes associated with one or more routes; and
a plurality of session routers in communication with the database server and configured to determine a source of a real-time transport protocol route advertisement;
when it is determined that a real-time transnort protocol route advertisement received at a respective session router is from an Internet telephony administrative domain managed by another administrative entity than the administrative entity that manages the respective session router, the session router is configured to perform destination screen of said route advertisement, wherein a destination address defined by said received route advertisement is compared to a destination address, and when it is determined that a real-time transport protocol route advertisement received at a respective session router is from the administrative entity that manages the respective session router, the session router is configured to perform an origin screen of said route information, wherein an origin address defined by said received route advertisement is compared to an origin address.
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Abstract
A system for assisting in controlling real-time transport protocol flow through multiple networks via screening is disclosed. The system utilizes a transceiver, a memory having logic stored therein defining functions to be performed by the system, and a processor. The processor is configured by the memory to perform the functions of: determining if route information received by the transceiver is from an external source or an internal source; if the route information is from an external source, performing a first internal screen of the route information, wherein a destination address defined by the received route information is compared to a local destination address defined by the first internal screen; and if the route information is from an internal source, performing a second internal screen of the route information, wherein an origin address defined by the received route information is compared to a local origin address defined by the second internal screen.
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Citations
53 Claims
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1. A system for screening a real-time transport protocol route advertisement communicated between adjacent Internet telephony administrative domains prior to comparing an advertised route to a policy, comprising:
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a database server confimired to store at least one policy, the at least one policy comprising attributes associated with one or more routes; and
a plurality of session routers in communication with the database server and configured to determine a source of a real-time transport protocol route advertisement;
when it is determined that a real-time transnort protocol route advertisement received at a respective session router is from an Internet telephony administrative domain managed by another administrative entity than the administrative entity that manages the respective session router, the session router is configured to perform destination screen of said route advertisement, wherein a destination address defined by said received route advertisement is compared to a destination address, and when it is determined that a real-time transport protocol route advertisement received at a respective session router is from the administrative entity that manages the respective session router, the session router is configured to perform an origin screen of said route information, wherein an origin address defined by said received route advertisement is compared to an origin address. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of screening a real-time transport protocol route advertisement prior to comparing said route advertisement to a policy, comprising the steps of:
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receiving a route advertisement describing a route from a first endpoint to a second endpoint at a session router;
determining when said route advertisement is received from an an Internet telephony administrative domain managed by another administrative entity than the administrative entity that manages the session router;
when said route advertisement is from an Internet telephony administrative domain managed by another administrative entity, performing a destination screen of said route advertisement, wherein a destination address defined by said received route advertisement is compared to a destination address defined by said destination screen; and
when said route advertisement is from the administrative entity that manages the session router, performing an origin screen of said route advertisement, wherein an origin address defined by said received route advertisement is compared to an origin address defined by said origin screen. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A system for screening real-time transport protocol route advertisements prior to comparing said routes to a policy, comprising:
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means for receiving a route advertisement describing a route that traverses one or more Internet telephony administrative domains;
means for identifying a managing entity that controls an originating device and a managing entity that controls a destination device defined by the route advertisement, which is logically connected to said means for receiving;
means for performing a destination screen of said route advertisement, which is configured to compare a destination address defined by received route advertisement to a destination address defined by said destination screen, which is logically connected to said means for receiving and said means for identifying; and
means for performing an orgin screen of said route advertisement, which is configured to compare an origin address defined by said received route advertisement to an origin address defined by said origin screen, which is logically connected to said means for receiving, said means for identifying, and said means for performing. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification