Some embodiments provide a method for handling failure at one of several peer centralized components of a logical router. At a first one of the peer centralized components of the logical router, the method detects that a second one of the peer centralized components has failed. In response to the detection, the method automatically identifies a network layer address of the failed second peer. The method assumes responsibility for data traffic to the failed peer by broadcasting a message on a logical switch that connects all of the peer centralized components and a distributed component of the logical router. The message instructs recipients to associate the identified network layer address with a data link layer address of the first peer centralized component.

A novel design of a gateway that handles traffic in and out of a network by using a datapath pipeline is provided. The datapath pipeline includes multiple stages for performing various data-plane packet-processing operations at the edge of the network. The processing stages include centralized routing stages and distributed routing stages. The processing stages can include service-providing stages such as NAT and firewall. The gateway caches the result previous packet operations and reapplies the result to subsequent packets that meet certain criteria. For packets that do not have applicable or valid result from previous packet processing operations, the gateway datapath daemon executes the pipelined packet processing stages and records a set of data from each stage of the pipeline and synthesizes those data into a cache entry for subsequent packets.

Devices, methods, user equipment (UE), base stations, storage media, and other embodiments are provided for managing associations in a communication network. In one example embodiment, a Next Generation (NG) core network device is configured for an Access and Mobility Management Function (AMF) with an NG-Radio Access Network (NG-RAN) node. The network device may be configured to access a plurality of Transport Network Link (TNL) associations and generate an AMF configuration update using the TNL associations, the AMF configuration update comprising AMF transport layer address information for the plurality of TNL associations. The network device may then initiate transmission of the AMF configuration update comprising the AMF transport layer address information to the NG-RAN node. Additional embodiments may involve binding updates or setup response messaging for managing associations, along with additional operations.

An access and mobility management function (AMF) receives from a session management function (SMF) a first session configuration request message for a packet duplication of a first session between a user plane function (UPF) and a wireless device. The AMF receives from the SMF, based on traffic load information received at the SMF from the UPF, a first message for activation of a configuration of the packet duplication of the first session of the wireless device. The AMF sends to the SMF a second message indicating a result of the activation of the packet duplication of the first session.

Various example embodiments for supporting communications for a network (e.g., a local area network (LAN), a virtual LAN (VLAN), or the like) based on use of an identifier of the network are presented. Various example embodiments for supporting communications for a VLAN based on use of a VLAN identifier (VID) of the VLAN are presented. Various example embodiments for supporting communications of a VLAN based on use of a VID of the VLAN may be configured to support use of a variable sized encoding of the VID (denoted herein as an xVID). Various example embodiments for supporting communications of a VLAN based on use of an xVID for the VLAN may be configured to support use of an xVID that is encoded using a set of fixed-sized identifier units where a number of fixed-sized identifier units used to encode the VID in the xVID is based on the VID.

An access and mobility management function (AMF) receives from a session management function (SMF) a first session configuration request message for a packet duplication of a first session between a user plane function (UPF) and a wireless device. The AMF receives from the SMF, based on traffic load information received at the SMF from the UPF, a first message for activation of a configuration of the packet duplication of the first session of the wireless device. The AMF sends to the SMF a second message indicating a result of the activation of the packet duplication of the first session.

Systems, methods, and apparatus to monitor mobile Internet activity are disclosed. An example apparatus includes at least one memory, and processor circuitry to execute instructions to at least assign (i) a first port of a proxy server to a first mobile device associated with a first panelist and (ii) a second port of the proxy server to a second mobile device associated with a second panelist, in response to receiving an un-authenticated request for media from at least one of the first, second, or third mobile devices, service the un-authenticated request in response to determining that the un-authenticated request is from an Internet Protocol (IP) address associated with an IP address range representative of devices on a cellular network, and, in response to servicing the un-authenticated request via the first port, store an association between the media and first panelist demographic information associated with the first mobile device.

The present disclosure relates to a method and a device for IP address allocation and topology management in a DAS system, and a readable storage medium. The method for IP address allocation and topology management in a DAS system comprises: configuring a port number for a communication port of a host; allocating an address number and one or more port numbers to a first-level slave according to a port number of the host; allocating an address number and one or more port numbers to a next-level slave according to a port number of a previous-level slave; and determining an IP address of a corresponding slave according to a network segment number of the host and the address number of the slave.

This disclosure is related to devices, systems, and techniques for using a Domain Name System (DNS) server to identify one or more network devices capable of operating according to a protocol. For example, a DNS system device includes a memory and one or more processors implemented in circuitry. The one or more processors are configured to receive, from a client device, a DNS query including a specification of a hostname and a request for an MP-TCP capability, determine, using the memory, at least one IP address corresponding to the hostname and corresponding to one of the devices that is MP-TCP capable, and send, to the client device, a DNS response including an indication of the at least one of the IP addresses.

A data transmission method, implemented by a network device, includes sending a probe packet to a log server, determining whether the log server can receive a packet responsive to whether the network device receives a probe response packet from the log server, and sending a log packet to the log server when the log server can receive a packet. The log packet includes a correspondence between a public Internet Protocol (IP) address and a private IP address.