Versa Networks, Inc.

Juniper Networks, Inc.

Kapil Bajaj

Apurva Mehta

Shiva Shenoy

Venkatesh B R Gota

Chetan Bali

Indira Priyadarshini Thangella

S Samuel Natarajan

Ravi Subrahmanya

Embodiments herein disclose conditioning traffic through multiple data paths of a Software-Defined Wide Area Network (SD-WAN). Some embodiments include monitoring a path through an SD-WAN to reach a destination node, determining a quality score for packets to the destination node on the path, determining a link utilization for the path, sending a data packet sequence to the destination node on the path, generating a forward error correction (FEC) packet for the data packet sequence, and sending the FEC packet to the destination node on the path in response to the quality score being less than a quality threshold and the link utilization being less than a high utilization threshold.

Data packet traffic conditioning through a lossy data path with forward error correction

Embodiments herein disclose conditioning traffic through multiple data paths of a Software-Defined Wide Area Network (SD-WAN). Some embodiments include monitoring available paths through an SD-WAN to reach a destination node, determining a quality score for packets to the destination node on a first path of the available paths, sending a data packet sequence to the destination node on the first path, generating a forward error correction (FEC) packet for the packet sequence, and sending the FEC packet to the destination node on a second path of the available paths in response to the quality score being less than a quality threshold.

Data packet traffic conditioning through multiple lossy data paths with forward error correction

Embodiments herein disclose conditioning traffic through multiple data paths of a Software-Defined Wide Area Network (SD-WAN). Some embodiments include monitoring a first and a second path through an SD-WAN to reach a destination node, comparing the link utilization for the first and the second path to generate an allocation ratio of the first and the second path, allocating a sequence of data packets to the first and the second path using the allocation ratio to generate a first path data sequence and a second path data sequence, generating a forward error correction (FEC) packet for first path sequence, sending the first path data sequence to the destination node on the first path, sending the second path data sequence to the destination node on the second path, and sending the FEC packet on at least one of the first and the second path.

Data packet traffic conditioning with packet striping through lossy data paths

A system and a method are described for data packet fragmentation for replicated packet traffic through an SD-WAN. In an example a first packet has an internet protocol identification (IP-ID). The first packet is replicated to create a second packet. The first packet and the second packet are fragmented into fragments for transmission through a tunnel in one or more paths between the source address and the destination address. The IP-ID of the second packet is modified. The fragments of the first packet and the second packet are separately encapsulated. The first and second packet fragments are received through the tunnel at a second node. The second node reassembles the first packet using the first packet fragments and reassembles the second packet using the second packet fragments. The IP-ID of the reassembled second packet is restored to be the IP-ID of the first packet.

Data packet fragmentation for replicated packet traffic through a software-defined wide area network

High availability router switchover decision are described using monitoring and policies. In one example, available network routing parameters are monitored. A change of one of the network routing parameters is detected. A parameter matrix of network routing parameters is updated in response to the detected change. The changed network routing parameters are applied to a policy in response to updating the parameter matrix and a switchover request is sent to a standby network node when the policy is mite by the changed network routing parameter.

High availability router switchover decision using monitoring and policies

Enhanced messaging is described to support status notifications regarding backup nodes of a data communications network. In one example, a status of a network node at the network node is monitored. The network node is coupled to a network. It is determined that the node is operating in a backup state, and a backup alive packet is sent through the network in response to determining that the node is operating in a backup state.

Enhanced messaging for backup state status notifications in communications networks

In an embodiment, a method for providing automatic router assignment in a virtual environment involves receiving a gratuitous ARP packet and setting a default gateway MAC address to a sender hardware address of the received gratuitous ARP packet, wherein the sender hardware address of the received gratuitous ARP packet is a MAC address of a master virtual router elected from a plurality of virtual routers, wherein a virtual router in the plurality of virtual routers is configured to elect a master virtual router by receiving at least one priority value advertised by another virtual router in the plurality of virtual routers, comparing the at least one received priority value to a priority value local to the virtual router to determine which priority value is the highest, and electing the virtual router having the highest priority value as the master virtual router.

Method and system for balancing network load in a virtual environment

Method and system for providing automatic router assignment in a virtual environment

In general, techniques are described for facilitating fine-grained charging control for multi-service subscriber sessions by configuring charging control actions for application to services at the rating group level. For example, a mobile network gateway includes configuration information that defines a plurality of rating groups for a subscriber session, wherein each of the plurality of rating groups is associated with at least one service, and wherein the configuration information defines an actionable event and a corresponding charging control action for a rating group of the plurality of rating groups. A subscriber management module establishes a bearer of the mobile network for the subscriber session and associates the plurality of rating groups with the bearer. A charging client determines the occurrence of the actionable event defined by the configuration information for the rating group and applies the corresponding charging control action for the actionable event to the rating group.

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Fremont, CA, United States of America

Kapil Bajaj