Abstract: An advancement over previous techniques using only certain out-of-band probe PDUs to determine loss. Packet loss statistics for a SD-WAN overlay path can be calculated for every packet transmitted by one endpoint and every packet received at the other endpoint. The roles of the positions of circular buffers can be periodically rotated from active to pre-stable to stable to post-stable. Counters in the active role can be incremented whenever a packet is transmitted. A position identifier can indicate which counter to increment when the packet is received. Counters in positions that are stable can be used to produce loss statistics for the SD-WAN overlay path.

Abstract: An advancement over previous techniques using only certain out-of-band probe PDUs to determine loss. Packet loss statistics for a SD-WAN overlay path can be calculated for every packet transmitted by one endpoint and every packet received at the other endpoint. The roles of the positions of circular buffers can be periodically rotated from active to pre-stable to stable to post-stable. Counters in the active role can be incremented whenever a packet is transmitted. A position identifier can indicate which counter to increment when the packet is received. Counters in positions that are stable can be used to produce loss statistics for the SD-WAN overlay path.

Abstract: In accordance with an embodiment of the invention, a method for routing connections in an SD-WAN is disclosed. The method involves receiving TURN server performance metrics via Border Gateway Protocol (BGP) and receiving network performance metrics from calculations made using Service Level Agreement (SLA) protocol data units (PDUs) for TURN servers in an SD-WAN, generating a score for at least one TURN server in the SD-WAN based on the received TURN server performance metrics and received network performance metrics for the at least one TURN server, selecting a TURN server based on the score generated for the at least one TURN server, and routing a connection over the selected TURN server.

Abstract: In accordance with an embodiment of the invention, a method for routing connections in an SD-WAN is disclosed. The method involves receiving TURN server performance metrics via Border Gateway Protocol (BGP) and receiving network performance metrics from calculations made using Service Level Agreement (SLA) protocol data units (PDUs) for TURN servers in an SD-WAN, generating a score for at least one TURN server in the SD-WAN based on the received TURN server performance metrics and received network performance metrics for the at least one TURN server, selecting a TURN server based on the score generated for the at least one TURN server, and routing a connection over the selected TURN server.

Abstract: In general, techniques are described for programming a set of one or more pre-defined rules within the forwarding plane of a packet gateway of a mobile service provider network and caching, within control plane, a group identifier that identifies the set of programmed, pre-defined rules. The control plane may match quality of service (QoS) information of incoming subscriber service requests with the group identifier and respective subsets of the set of programmed, pre-defined rules to rapidly associate service requests with already-programmed PCC rules and thereafter install, to the forwarding plane, subscriber service-specific actions for the PCC rules.

Abstract: In general, techniques are described for programming a set of one or more pre-defined rules within the forwarding plane of a packet gateway of a mobile service provider network and caching, within control plane, a group identifier that identifies the set of programmed, pre-defined rules. The control plane may match quality of service (QoS) information of incoming subscriber service requests with the group identifier and respective subsets of the set of programmed, pre-defined rules to rapidly associate service requests with already-programmed PCC rules and thereafter install, to the forwarding plane, subscriber service-specific actions for the PCC rules.

Abstract: A system is configured to: receive a message from a gateway device; identify one or more sessions corresponding to an identifier included in the message; and clear the one or more corresponding sessions. The identifier may correspond to a part of the gateway device where a session is stored or maintained for a mobile device to connect to a server device.

Abstract: In general, techniques are described for preparing a computer network for planned events. A network device comprising a control unit and an interface implements these techniques. The control unit is configured to be a member a maintenance association that verifies connectivity a single service instance. The interface outputs a maintenance message to an additional network device to verify connectivity between the network device and the additional network device. The control unit receives an indication to initiate a planned event capable of disrupting the maintenance association. Prior to the control unit performing the planned event, the interface generates a modified maintenance message indicating that the planned event will be performed by the network device. The interface then transmits the modified outgoing maintenance message to the additional network device to direct the additional network device to avoid detecting the planned event as a connectivity fault.

Abstract: A method of tracing Ethernet frame delay between network devices is described that includes outputting a delay trace message Ethernet frame to a target MEP network device. The method also includes receiving one or more delay trace response Ethernet frames from one or more MEG intermediate point (MIP) network devices positioned along a network path from the originating MEP network device to the target MEP network device. The method also includes receiving a delay trace response Ethernet frame from the target MEP network device. In some embodiments, the method includes calculating delay associated with portions of the network between each of the network devices using the received responses.

Abstract: A device may include a maintenance association endpoint configured to select a maintenance association endpoint identifier, transmit the maintenance association endpoint identifier to one or more other maintenance association endpoints, and automatically assign the maintenance association endpoint identifier to the maintenance association endpoint if it is determined that the maintenance association endpoint identifier is available based on a conflict message received from one of the one more other maintenance association endpoints.

Abstract: A device may include a maintenance association endpoint configured to select a maintenance association endpoint identifier, transmit the maintenance association endpoint identifier to one or more other maintenance association endpoints, and automatically assign the maintenance association endpoint identifier to the maintenance association endpoint if it is determined that the maintenance association endpoint identifier is available based on a conflict message received from one of the one more other maintenance association endpoints.

Abstract: A system is configured to: receive a message from a gateway device; identify one or more sessions corresponding to an identifier included in the message; and clear the one or more corresponding sessions. The identifier may correspond to a part of the gateway device where a session is stored or maintained for a mobile device to connect to a server device.

Abstract: A device may include a maintenance association endpoint configured to select a maintenance association endpoint identifier, transmit the maintenance association endpoint identifier to one or more other maintenance association endpoints, and automatically assign the maintenance association endpoint identifier to the maintenance association endpoint if it is determined that the maintenance association endpoint identifier is available based on a conflict message received from one of the one more other maintenance association endpoints.

Abstract: In general, techniques are described for simultaneously testing connectivity to same or different remote maintenance endpoints of the same maintenance association. Specifically, a network device may include a control unit that simultaneously executes both a first and a second maintenance session. The control unit maintains first and second session identifiers that uniquely identifies the first and second maintenance sessions. The control unit receives via the first maintenance session input that specifies parameters for a maintenance message and generates the maintenance message in accordance with the parameters such that the maintenance message includes the first session identifier. The network device also includes an interface card that forwards the maintenance message to another network device in order to determine connectivity between these two network devices.