Abstract: A method for providing seamless redundancy in an output data stream includes the steps of: receiving a first data stream originating from a first location, the first data stream being conveyed over a first network path; receiving at least a second data stream originating from a second location that is geographically distinct from the first location, the second data stream comprising nominally identical content relative to the first data stream, the second data stream being conveyed over a second network path that is topologically distinct from the first network path; and combining first data segments from the first data stream and second data segments from the second data stream to generate a single, uninterrupted output data stream having a reduced likelihood of overlapping, missing and/or corrupt data segments.

Abstract: A system and method for resolving a DNS request using metadata. An intelligent name server receives a request to resolve a domain name via a network. The intelligent name server acquires at least one metadata element about the source of the request. The domain name request is transformed into a CNAME request that includes the at least one metadata element and the domain name to be resolved. The CNAME request is sent to a metadata aware DNS server for resolution. The metadata aware DNS server maps the domain name to one or more network addresses stored in a look-up table. The included metadata is used to select a “best” host address to include in a response.

Abstract: A system and method for routing multicast packets. A multicast packet is received at an inbound interface on a switch/router. S,G data are obtained from the packet and used to search an OIL table. If the S,G data are found in the OIL table, the packet is forwarded on an outbound interface associated with the S,G data. If the S,G data are not found in the OIL table, the multicast routing table is consulted to obtain a longest match for the packet, and the packet is forwarded on the interface(s) which correspond to the longest match route. The multicast routing table may include a single entry, such that all packets that do not match an entry in the OIL are forwarded on the same outbound interface. The multicast routing table may include multiple entries with different covered ranges of (S,G).

Abstract: A method for providing seamless redundancy in an output data stream includes the steps of: receiving a first data stream originating from a first location, the first data stream being conveyed over a first network path; receiving at least a second data stream originating from a second location that is geographically distinct from the first location, the second data stream comprising nominally identical content relative to the first data stream, the second data stream being conveyed over a second network path that is topologically distinct from the first network path; and combining first data segments from the first data stream and second data segments from the second data stream to generate a single, uninterrupted output data stream having a reduced likelihood of overlapping, missing and/or corrupt data segments.

Abstract: A system and method for resolving a DNS request using metadata. An intelligent name server receives a request to resolve a domain name via a network. The intelligent name server acquires at least one metadata element about the source of the request. The domain name request is transformed into a CNAME request that includes the at least one metadata element and the domain name to be resolved. The CNAME request is sent to a metadata aware DNS server for resolution. The metadata aware DNS server maps the domain name to one or more network addresses stored in a look-up table. The included metadata is used to select a “best” host address to include in a response.