In a VXLAN configuration method, a first network device obtains configuration information, generates first GRASP information based on the configuration information, and sends the first GRASP information to a second network device, where the configuration information includes VTEP device information, a plurality of pieces of VTEP device information are respectively used to indicate a plurality of VTEPs included in a VXLAN, the first GRASP information includes objective information, and the objective information is used to carry the configuration information. The second network device receives the first GRASP information and establishes a VXLAN tunnel based on the first GRASP information. In this way, automatic VXLAN configuration is implemented.

A multicast forwarding entry generation method includes receiving a first multicast packet from a first border gateway. The method also includes generating a first multicast forwarding entry based on the first multicast packet. The first multicast forwarding entry includes an address of the first border gateway and information about a multicast source. The method further includes receiving a second multicast packet from a second border gateway. The second multicast packet includes an address of the second border gateway and the information about the multicast source. The method additionally includes determining a first path to the multicast source through the first border gateway and a second path to the multicast source through the second border gateway. The method also includes determining an optimal path to the multicast source based on the first path and the second path, and generating a forwarding entry of the multicast source based on the optimal path.

A remote access and control system for test and measurement setups is provided. The remote access and control system comprises at least one virtual network, wherein the at least one virtual network is persistently defined as a set of test and measurement instruments and accompanying hardware.

This application provides a packet transmission method and apparatus. The method includes: receiving, by a first transmission device, a first VXLAN packet sent by a first service device through a first virtual extensible local area network VXLAN tunnel; determining, by the first transmission device, first egress information corresponding to a first BD and a first destination media access control MAC address, based on a correspondence between the first BD, the first destination MAC address, and the first egress information; generating, by the first transmission device, a second VXLAN packet based on the first VXLAN packet and the first egress information, where the second VXLAN packet includes a second VNI and an Ethernet frame; and sending, by the first transmission device sends the second VXLAN packet to a second transmission device through a second VXLAN tunnel. This application facilitates more flexible packet transmission.

This application provides a method for establishing a non-Ethernet service and a network device. The method includes: A first network device receives a border gateway protocol BGP message sent by a second network device to establish a non-Ethernet service. In other words, in the method, the non-Ethernet service is established by using a protocol of an Ethernet service. In this way, a network device in a system can support establishment of the non-Ethernet service when only the related protocol supporting the Ethernet service is configured. Therefore, the foregoing technical solutions can reduce service establishment costs, and implement flexible establishment of the non-Ethernet service.

Disclosed methods define VLAN time slots for one or more VLANs within an HCI environment. A management resource may control virtual application access to each VLAN in accordance with the VLAN time slots wherein only one virtual application may connect to the VLAN during a VLAN time slot. Disclosed methods may define VLAN time slots for each of the plurality of virtual applications. The VLAN time slots may be defined dynamically, wherein durations of the VLAN time slots may be re-calculated each VLAN cycle. A duration of the VLAN time slot for a particular virtual application may be determined based on the number of packets transmitted by the virtual application during a previous VLAN cycle. Each VLAN time slot may include an active interval, for transmitting packets, and an inactive interval. Each active interval may include a fixed duration base interval and a variable duration dynamic interval.

Top-of-rack (TOR) switches are connected to a network fabric of a data center. Each TOR switch corresponds to a rack of the data center, and is configured to provide access to the network fabric for computing devices mounted in the rack. In one method, a TOR switch is mounted in a rack. The TOR switch is connected to a network fabric of a data center. A lock is used to control physical access to the rack. A request to physically access the rack is received from a computing device (e.g., a badge implementing a security token, or a mobile device). The request includes authentication credentials. The computing device is then authenticated. In response to authenticating the computing device, the lock is configured to provide physical access to the rack.

A virtual eXtensible local area network (VXLAN) method comprises obtaining, by a network device, a mapping from a virtual local area network identifier VLAN ID to a VXLAN network identifier VNI, receiving, by the network device through a port, an Ethernet frame forwarded by an access device, where a VLAN tag field in the Ethernet frame includes the VLAN ID, adding, by the network device, a VXLAN header to the Ethernet frame based on the VLAN ID and the mapping to obtain a VXLAN packet, where a VNI field in the VXLAN header includes the VNI, and sending, by the network device, the VXLAN packet.

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.

Disclosed is a computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization. The computing apparatus include a statistics virtualization module configured to provide individual statistics to each of created virtual networks, a transmission disaggregation module configured to include a physical statistics cache that performs periodic monitoring of a plurality of physical switches and store statistics of the physical switches collected, and a physical statistics aggregation module configured to respond with statistics of the plurality of physical switches when a single monitoring request.