Address resolution information acquisition (ARIA) for a computing device is described. In some examples, ARIA includes a computing device (e.g., an Internet of things (IoT) node, a gateway, a server) determining, without use of an address resolution protocol (ARP), address resolution information of one or more other computing devices (e.g., a IoT node, a gateway, a server). In one example, the computing device uses data flowing to or from its application layer, transport layer, or network layer to determine address resolution information of another computing device. The address resolution information can comprise one or more of a link layer address (e.g., a media access control (MAC) address) and an Internet layer address (e.g., an Internet protocol (IP) address). Usage of a cache for storing or deleting address resolution information can also be part of ARIA.

Techniques are described for providing logical networking functionality for managed computer networks, such as for virtual computer networks provided on behalf of users or other entities. In some situations, a user may configure or otherwise specify a network topology for a virtual computer network, such as a logical network topology that separates multiple computing nodes of the virtual computer network into multiple logical sub-networks and/or that specifies one or more logical networking devices for the virtual computer network. After a network topology is specified for a virtual computer network, logical networking functionality corresponding to the network topology may be provided in various manners, such as without physically implementing the network topology for the virtual computer network. In some situations, the computing nodes may include virtual machine nodes hosted on one or more physical computing machines or systems, such as by or on behalf of one or more users.

A method includes determining, by a managing unit of a dispersed storage network (DSN), an addition of a new storage unit to a group of storage units. The DSN includes a logical address space divided into a set of logical address sub-spaces, one of which is allocated to the group of storage units. The method further includes reorganizing, by the managing unit, distribution of the logical address sub-space among the new storage unit and each storage unit in the group of storage units to produce a reorganized logical address sub-space. The allocation includes the new storage unit's portion being between portions of first and second storage units. The method further includes transferring, by the first storage unit, a first group of encoded data slices to the new storage unit and transferring, by the second storage unit, a second group of encoded data slices to the new storage unit.

An apparatus includes a first media access control (MAC) device with a first radio transceiver and having a first MAC address, and a second MAC device with a second radio transceiver and having a second MAC address. The first MAC device is operative to communicate with a first wireless access point using an Internet Protocol (IP) address. The second MAC device is operatively coupled to the first MAC device, and is operative to communicate with a second wireless access point using the same IP address.

An address allocation method, a carrier grade network address translation (CGN) device, and a CGN dual-active system, where a second CGN device receives a first to-be-sent packet sent by a network address translation (NAT) device, searches a recorded correspondence between a private network address, a public network address, and a port range for a source address of the first to-be-sent packet, sends an address allocation request used to request a public network address and a port range of the source address to a first CGN device when a search result indicating that no source address of the first to-be-sent packet is found. The first CGN device allocates a public network address and a port range to the source address of the first to-be-sent packet, records the network address and the port range, and synchronies the allocated public network address and the allocated port range to the second CGN device.

Systems and method for controlled pre-interaction are disclosed. The method of performing controlled pre-interaction includes: providing at least one private interaction address, defining at least one manageable public interaction address, forming a record of manageable public interaction address associated with the private interaction address. The method of performing controlled pre-interaction further includes: generating a reverse list, wherein an interaction address of a participant is associated at least with the manageable public interaction address, and performing at least one pre-interaction act. A pre-interaction act includes: accessing the reverse list, identifying the interaction address of the participant in the reverse list, and determining that the manageable public interaction address is associated, at the reverse list, with the interaction address of the participant.

The present disclosure relates to domain name resolution technology and discloses a DNS resolution method, an authoritative DNS server and a DNS resolution system. In some embodiments, the authoritative DNS server receives a target domain name resolution request sent by a LDNS server, where the target domain name resolution request includes content information; the authoritative DNS server determines a target domain name resolution result according to the content information, and returns the target domain name resolution result to the LDNS server.

Methods and systems for selectively processing VLAN traffic from different networks while allowing flexible VLAN identifier assignment are disclosed. According to one aspect, a layer 2 switch includes a virtual switch identifier data structure that associates a VLAN identifier extracted from a layer 2 frame and a port identifier corresponding to a port on which a frame is received with a virtual switch identifier. The virtual switch identifier is used to select a per-virtual-switch data structure, such as a forwarding table. The per-virtual-switch data structure is used to control processing of the layer 2 frame on a per-virtual-switch basis. The per-virtual-switch data structure may also be updated separately from the data structures assigned to other virtual switches.

The embodiments described herein recite a telephone communication system used for handling information such as messages, typically voice mail messages, and, more particularly, is directed to a system that provides distributed session initiation protocol (SIP) silos. Distributed SIP silos (DSS) is a Communications Application Platform (CAP) feature that maintains the site's call capacity even when a signaling server fails. DSS uses multiple non-redundant signaling servers to provide SIP signaling for the same set of media ports. Because there are multiple signaling servers providing signaling for the same set of ports, the failure of one signaling server only terminates the calls it was actively processing and once those calls have been cleaned up, all the available (non-suspended) ports in the configuration are available to the remaining signaling servers.

QR codes or the like are used in hardlink applications, by which different users may receive different information in response to a user's interaction with a touchpoint. The content delivered to a particular user in response to a hardlink code or a presented hyperlink may be dependent on the time of the scan, the geographic location of the user, a weather condition at the geographical location, personal information associated with the user, a number of previous scans of the code by prior individuals, and any combination of the these or other variables, which may be determined by an originator of the QR code or other party. User devices may be re-directed to alternate content or network addresses based on one or more programmed conditions.