50 results about "Multiple homing" patented technology

The present invention describes various techniques which may be used for determining multi-path latency in data networks which utilize a multi-homed transport protocols. Using the technique of the present invention, for example, appropriate source and destination addresses may be selected for specific IP datagrams in order to achieve an optimal communication path between endpoints which utilize a multi-homed transport protocol.

A method is executed by a network device to determine a loop free alternate (LFA) for a multi-homed prefix in an IS-IS area or IS-IS domain. The method includes selecting a next node from the IS-IS area or the IS-IS domain and selecting a next prefix for the selected node. A check is made whether the selected prefix is a multi-homed prefix (MHP). A check is made whether a shortest path first (SPF) cost of the selected node and cost to the selected prefix is equal to an SPF cost of the selected prefix, whether a next hop of selected prefix is same as next hop of selected node, and whether a LFA next hop of the selected node is better protection than a current next hop protection of the selected prefix and the LFA next hop of the selected node is then inherited for the selected prefix.

This application provides a multicast forwarding method, device, and electronic equipment, which relate to the technical field of data transmission. Since the same multi-homing network is configured with the same ESI, the multi-cast forwarding method provided by this application is based on the multi-homing scenario. The preset correspondence between VXLAN and ESI determines whether the multicast traffic sent by the multicast source is a multi-homing network. If so, only one copy of the multicast traffic needs to be sent to the remote VTEP. After reaching the remote VTEP , just copy it locally. In this way, the replication workload of the VTEP accessed by the multicast source is reduced, and the public network bandwidth occupied during the transmission process is also reduced, effectively alleviating the multicast traffic congestion caused by insufficient bandwidth resources.

The present application provides a packet processing method and device. The method is applied to a first PE, and the first PE is in an EVPN VPLS network. The EVPN VPLS network further includes a first CE and a second PE. The first PE and the second PE form a multi-homed member group, the first CE is respectively connected to the first PE and the second PE through different links, and the method includes: the first PE receives the third PE The sent network packet, the network packet includes a packet attribute mark; when the role of the first PE in the multi-homed member group is the backup DF, the first PE marks the packet according to the packet attribute , and no longer send the network packet to the first CE.

A method, device and system for determining DF of a multicast stream. In an EVPN scenario, a CE device is dual-homed or multi-homed to multiple PE devices. The first PE device is any one of the multiple PE devices. After the first PE device determines that the CE device connected to the Ethernet link joins the multicast group of the multicast stream, it determines the bandwidth occupancy of multiple Ethernet links included in the ES to which the Ethernet link belongs, Then, according to the bandwidth occupancy of the multicast flow of the multiple Ethernet links, the PE device corresponding to the Ethernet link with the least bandwidth occupancy of the multicast flow is determined as the DF of the multicast flow. Therefore, it is helpful to improve the balance of load sharing for transmitting multicast streams in the EVPN.

For use in a system including a first data forwarding device, a second data forwarding device, a third data forwarding device, a first communications link between the first data forwarding device and the second data forwarding device, and a second communications link between the first data forwarding device and the third data forwarding device, the first and second communications links belonging to a link aggregation group (LAG), a method includes (1) generating a message (i) for testing a first path between the first data forwarding device and the second data forwarding device, and a second path between the first data forwarding device and the third data forwarding device, and (ii) including an Internet protocol (IP) datagram including a multicast IP destination address and a payload containing path testing information; and (2) sending, over the LAG, the message from the first data forwarding device to both the second data forwarding device and the third data forwarding device. Responsive to receiving an instance of the message by either of the second or third data forwarding device, such device(s) (1) determine whether or not the received instance of the message is a fault detection on a multihomed link aggregation group message, and (2) processing the received instance of the message based on the determination of whether or not it is a fault detection on a multihomed link aggregation group message.

The present invention relates to a routing processing method and device, which are used for a first VTEP device in a multi-homing network, and a first host simultaneously accesses the first VTEP device and the second VTEP device in the multi-homing network, including: Receive the first MAC / IP notification route sent by the second VTEP device; traverse all AC ports associated with the VXLAN identifier in the first VTEP device, and search for all AC ports associated with the VXLAN identifier A second AC port matching the private network identifier and the ESI; when the second AC port is found, a forwarding entry corresponding to the first host is generated according to the second AC port. By generating forwarding entries according to the second AC interface, the routing processing method and device according to the embodiments of the present invention can avoid detour of remote traffic between VTEP devices in the EVPN multi-homing system.

The invention provides a state control method, a state control device, and a message transmission method, and relates to the communication technology field. The state control method is used for VXLANTunnel End Point VTEP. The state control method comprises steps that a first protocol message is configured on an interface corresponding to the VTEP, and the first protocol message comprises block priority corresponding to an access circuit AC bonded with the interface and a network identification corresponding to VSI of the AC; the first protocol message is transmitted from the AC, and a secondprotocol message transmitted by other VTEP; whether the network identification in the second protocol message is matched with the network identification of the first protocol message is determined, when yes, and the blocking priority in the second protocol message is higher than the blocking priority in the first protocol message, and the working state of the AC is set as a blocking state. By adopting the technical scheme provided by the invention, the convenient control over the AC working state corresponding to the VTEP is realized, and therefore reliability of data message transmission is guaranteed.

The solution comprises: setting a smart home location register (SHLR) in next generation network (NGN), which is for use in storing gateway data and subscriber data; multi soft-switch addresses can be set up on the gateway; when network runs, if one soft-switch failures, the gateway initiates a registration to another soft-switch that enquires the gateway information on SHLR; the SHLR authenticates the gateway; if the authentication passes, the SHLR returns the gateway data to the soft-switch, and the soft-switch returns the message of successful registration to the soft-switch; after the gateway makes successful registration, the soft-switch updates the registration state of the gateway on the SHLR; the SHLR saves the registration state of the gate way and its registered soft-switch ID.