Techniques for routing network traffic in a storage processor involve providing per-IP routing tables for each IP address of a virtual server and a per-server routing table. These per-IP and per-server routing tables specify its own interface(s) with external network(s). The storage processor assigns each outbound protocol data unit (PDU), generated by a particular virtual server, to either a per-IP routing table or a per-server routing table provided for that virtual server. The assignment of the routing table is based on source IP address or a connection mark associated with an outbound PDU. The per-IP or per-server routing table(s) identifies an interface through which the packet is routed to the destination IP address.

An integrated circuit includes an exact-match flow table structure, a crossbar switch, and an egress packet modifier. Each flow entry includes an egress action value, an egress flow number, and an egress port number. A Flow Id is generated from an incoming packet. The Flow Id is used to obtain a matching flow entry. A portion of the packet is communicated across the crossbar switch to the egress packet modifier, along with the egress action value and flow number. The egress action value is used to obtain non-flow specific header information stored in a first egress memory. The egress flow number is used to obtain flow specific header information stored in a second egress memory. The egress packet modifier adds the header information onto the portion of the packet, thereby generating a complete packet. The complete packet is then output from an egress port indicated by the egress port number.

A system and method for selecting packets to be forwarded from redundant multicast streams. A primary multicast stream and a secondary multicast stream are received, wherein the primary multicast stream and the secondary multicast stream are redundant multicast streams received over disjoint multicast forwarding paths. A hardware-based analyzer in a forwarding plane of the network device is applied to detect when a quality of one of the primary multicast stream or the secondary multicast stream has fallen below a threshold. In response to detecting that a quality of one of the primary multicast stream or the secondary multicast stream has fallen below a threshold, selecting, via a thread executing in a forwarding component of the network device, a different one of the primary multicast stream or the secondary multicast stream having a quality that meets the threshold, wherein selecting includes dynamically rewriting next hop operations associated with the selected stream. Packets received on the selected one of the primary multicast stream or the secondary multicast stream are forwarded and packets of the multicast stream received on the other one of the primary multicast stream or the secondary multicast stream for which the quality has fallen below the threshold are discarded.

A non-transitory computer readable medium has instructions stored therein to be executed by a packet processing unit (PPU) in a communications network to allow a plurality of PPUs in the communication network to route data packets. The plurality of PPUs collectively maintain a distributed hash table (DHT). The DHT stores a distributed routing table (DRT), where the DRT includes a DRT entry that maps a key to a value. The key is based on a destination Internet Protocol (IP) address and an access point name (APN) associated with an IP session of a user entity (UE). The value represents both an IP address of one of the plurality of PPUs currently serving the IP session of the UE and an IP session identifier that identifies, to that PPU currently serving the IP session of the UE, the IP session of the UE.

A forwarding flow table request sent by a host device when the host device fails to find a matching forwarding flow table entry for a data packet to be forwarded is received, when a destination MAC address of the data packet is the global virtual MAC address, a forwarding flow table entry is generated according to the global port table; the forwarding flow table entry includes an operation indication of replacing the destination MAC address of the data packet with the matching MAC address found in the global port table; and the forwarding flow table entry is sent to the host device, so that the host device may forward a data packet matching the forwarding flow table entry.

Data forwarding method, device, and system are provided for software-defined networking. An SDN control device delivers a proactive flow entry according to network topology information, where the proactive flow entry is unrelated to a service, and instead related to the network topology information. The proactive flow entry may be reused during data forwarding. After data is received, the SDN control device delivers reactive flow entries to some switching devices, where the reactive flow entries are related to the service, but are delivered to a subset of switching devices. This reduces flow entries delivered by the SDN control device to some switching devices, so that occupation of resources of the SDN control device and a switching device by flow entries is reduced.

A wireless network adapter is connected to a computing device. A driver module of the wireless network adapter converts a wireless-protocol data packet received through the wireless network adapter into an Ethernet-protocol data packet. A network address translation (NAT) module determines a Socket associated with a source address and a destination address of the Ethernet-protocol data packet, and sends valid data of the Ethernet-protocol data packet through the Socket. Additionally or alternatively, the NAT module encapsulates data into the Ethernet-protocol data packet after receiving the data through the Socket, and the driver module converts the Ethernet-protocol data packet into the wireless-protocol data packet, and sends the wireless-protocol data packet through the wireless network adapter. The present disclosure can implement functions of a device hotspot and is not limited by an operating system framework.

A system and method for configuring wireless process mesh networks is provided. The system includes a processor, user interface module, memory, and an analysis module. The user interface module is configured to generate a user interface to receive user-provided mesh network design parameters. Memory is coupled to the processor and stores information indicative of a plurality of wireless process mesh networks and associated wireless field devices. The analysis module is configured to analyze the information indicative of the plurality of wireless process mesh networks and generate an alternate wireless mesh network configuration based on the user-provided mesh network design parameters.

A routing system may include a primary message group to be used for synchronizing stored information. The primary message group may include multiple primary network devices. The multiple primary network devices may be configured with a first configuration regarding synchronizing the stored information. The primary message group may form a ring network topology. The routing system may include a secondary message group to be used for synchronizing the stored information. The secondary message group may include a single primary network device, of the multiple primary network devices, and multiple secondary network devices. Each secondary network device, of the multiple secondary network devices, may be included in a single secondary message group. The multiple secondary network devices may be configured with a second configuration regarding synchronizing the stored information. The secondary message group may form a different ring network topology.

Methods and systems of a disaggregated optical transport network (OTN) switching system that include using plug-in universal (PIU) modules each having multiple ports for OTN to Ethernet transceiving and an Ethernet fabric as a switching core are disclosed. An OTN over Ethernet module in each of the PIU modules may enable various OTN functionality to be realized using the Ethernet fabric which may include multiple Ethernet switches. An ith port of the multiple ports of each PIU module may be connected to the ith Ethernet switch of each of the Ethernet switches. A PIU module may be associated with a respective sequential order of the Ethernet switches. The PIU module may transmit an Ethernet packet from an ith port of the PIU module corresponding to the ith Ethernet switch, where the ith port is selected based on the respective sequential order of the Ethernet switches.