Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.

Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.

Abstract: In one embodiment, a method includes providing a first profile to a plurality of edge routers of the SD-WAN, the plurality of edge routers operable to interface a plurality of devices to the SD-WAN. The first profile enables the plurality of edge routers to discover which devices of the plurality of devices support a first application. The method includes receiving, from one or more of the edge routers, information indicating which devices of the plurality of devices support the first application and building a first application fabric based on the information indicating which devices of the plurality of devices support the first application.

Abstract: In one embodiment, a method includes providing a first profile to a plurality of edge routers of the SD-WAN, the plurality of edge routers operable to interface a plurality of devices to the SD-WAN. The first profile enables the plurality of edge routers to discover which devices of the plurality of devices support a first application. The method includes receiving, from one or more of the edge routers, information indicating which devices of the plurality of devices support the first application and building a first application fabric based on the information indicating which devices of the plurality of devices support the first application.

Abstract: A method performed in a network element of a provider edge network to determine a downlink service path for a downlink packet. The method includes preserving an indication of the downlink service path while processing an uplink packet that has been transmitted from a subscriber end station toward a provider end station. The method also includes receiving the downlink packet at a line card of the network element. The downlink packet has been transmitted from the provider end station toward the subscriber end station. The method further includes determining, at the line card, the downlink service path for the downlink packet by using the indication of the downlink service path that was preserved while processing the uplink packet. The downlink service path is operable to identify a plurality of services and an order in which the plurality of services are to be performed on the downlink packet.

Abstract: A method and apparatus for flexible Mobile IP foreign agent architecture for enabling converged services are described herein. According to one embodiment of the invention, a packet is received over a circuit bound with a converged services domain of a network element. The converged services domain enables forwarding of wired and wireless traffic to a plurality of destination network elements. Upon determining that the circuit is capable of carrying Mobile Internet Protocol (IP) packets, the packet is processed according to an entry in a Mobile IP forwarding information base upon determining that the packet has a corresponding entry in the Mobile IP forwarding information base, and the packet is processed according to a different entry in an IP forwarding information base upon determining that the packet does not have an entry in the Mobile IP forwarding information base. Other methods and apparatuses are also described.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: A method performed in a network element of a provider edge network to determine a downlink service path for a downlink packet. The method includes preserving an indication of the downlink service path while processing an uplink packet that has been transmitted from a subscriber end station toward a provider end station. The method also includes receiving the downlink packet at a line card of the network element. The downlink packet has been transmitted from the provider end station toward the subscriber end station. The method further includes determining, at the line card, the downlink service path for the downlink packet by using the indication of the downlink service path that was preserved while processing the uplink packet. The downlink service path is operable to identify a plurality of services and an order in which the plurality of services are to be performed on the downlink packet.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: A method and system for reducing congestion and latency in a communication system by creating a pruned forwarding set for scalable tunneling applications. The communication system provides a communication link between a mobile communication device and a network, such as the Internet. The method entails using information included within a data packet to determine a corresponding tunnel peer address, which is then resolved onto a set of paths. Each path includes respective adjacency information. A determination of whether to prune each respective path is made by using the respective adjacency information. The pruned set of paths is used to identify available paths for the communication link. By pruning in this manner, the line card being used as the home slot for a given session may also be used as the egress slot, thereby reducing congestion and latency in the communication system.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: Communication sessions are each homed on one of a plurality of line cards in a network element. Packets received by the network element are processed on the home card before being transmitted to a subscriber device, such as a mobile phone or laptop computer. When a packet is received by the network element, it is not necessarily received by the line card that serves as a home card for the respective session. The packet is switched within the network element from the receiving line card, i.e., the trunk card, to the home card. The network element identifies the home card by performing a lookup in a table duplicated on all the line cards using the least significant bits of the IP address in the packet. Using these bits to organize the table limits the size of the table and balances load among the line cards.

Abstract: A method and apparatus for flexible Mobile IP foreign agent architecture for enabling converged services are described herein. According to one embodiment of the invention, a packet is received over a circuit bound with a converged services domain of a network element. The converged services domain enables forwarding of wired and wireless traffic to a plurality of destination network elements. Upon determining that the circuit is capable of carrying Mobile Internet Protocol (IP) packets, the packet is processed according to an entry in a Mobile IP forwarding information base upon determining that the packet has a corresponding entry in the Mobile IP forwarding information base, and the packet is processed according to a different entry in an IP forwarding information base upon determining that the packet does not have an entry in the Mobile IP forwarding information base. Other methods and apparatuses are also described.

Abstract: Communication sessions are each homed on one of a plurality of line cards in a network element. Packets received by the network element are processed on the home card before being transmitted to a subscriber device, such as a mobile phone or laptop computer. When a packet is received by the network element, it is not necessarily received by the line card that serves as a home card for the respective session. The packet is switched within the network element from the receiving line card, i.e., the trunk card, to the home card. The network element identifies the home card by performing a lookup in a table duplicated on all the line cards using the least significant bits of the IP address in the packet. Using these bits to organize the table limits the size of the table and balances load among the line cards.

Abstract: A method and apparatus for flexible Mobile IP foreign agent architecture for enabling converged services are described herein. According to one embodiment of the invention, a packet is received over a circuit bound with a converged services domain of a network element. The converged services domain enables forwarding of wired and wireless traffic to a plurality of destination network elements. Upon determining that the circuit is capable of carrying Mobile Internet Protocol (IP) packets, the packet is processed according to an entry in a Mobile IP forwarding information base upon determining that the packet has a corresponding entry in the Mobile IP forwarding information base, and the packet is processed according to a different entry in an IP forwarding information base upon determining that the packet does not have an entry in the Mobile IP forwarding information base. Other methods and apparatuses are also described.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.

Abstract: Techniques for recovering Mobile Internet Protocol (IP) session(s) of a mobility agent in a Mobile IP network are described herein. In one embodiment of the invention, for each mobility session associated with a mobility agent, the mobility agent distributively backs up mobility agent specific information to the mobility agent peer associated with that mobility session. The mobility agent specific information is not used by the mobility agent peer. Upon the mobility agent inadvertently losing at least one mobility session, the mobility agent recovers the stored mobility agent specific information associated with those sessions from the mobility agent peers respectively associated with those sessions. Other methods and apparatuses are also described.