Distributed virtual switching device and forwarding method

A virtual switching and distributed technology, applied in the field of network virtualization, which can solve problems such as complex data center networks

Active Publication Date: 2015-09-30
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous growth of enterprise network scale and the massive deployment of cloud-based network environments, data center networks have also become significantly more complex

Method used

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  • Distributed virtual switching device and forwarding method
  • Distributed virtual switching device and forwarding method
  • Distributed virtual switching device and forwarding method

Examples

Experimental program
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Embodiment Construction

[0063] In a data center network, an end station (End Station), such as a physical server, has a software entity. Based on this software entity, a physical server can allow multiple virtual machines (VM, Virtual Machine) to share the same hardware system. Each virtual machine contains at least one virtual network card (VNIC, Virtual Network Interface Card), which is configured with an independent IP address and has an independent media access control (MAC, Media Access Control) address, and through the software entity and physical The physical network card of the server is connected.

[0064] At the beginning of the emergence of virtual machine VM, virtual machine manufacturers such as VMware proposed the concept of virtual switch (VSwitch), which solves the mutual access of VM Layer 2 networks inside the same physical server through software virtual switches, and the layer 2 mutual access of VMs across physical servers. The access is forwarded to the traditional Ethernet (Eth...

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Abstract

A VEM may learn a local subnet forwarding table, synchronize the local subnet forwarding table to other VEMs in a same VXLAN via a VSM, receive and store subnet forwarding tables learned by other VEMs and a VXLAN tunnel table from the VSM, receive a packet from a local port, search the local subnet forwarding table and the subnet forwarding tables learned by the other VEMs according to a VXLAN ID and a destination MAC address of the packet to obtain egress vPort information； parse, if the egress vPort information is not information of a local port, a VTEP IP address of a destination VEM of the packet from the egress vPort information, obtain a VXLAN tunnel table corresponding to the VTEP IP address, perform VXLAN tunnel encapsulation for the packet according to the VXLAN tunnel table and send the encapsulated packet to a data center physical network.

Description

technical field [0001] The invention relates to the technical field of network virtualization, in particular to a distributed virtual switching device and a forwarding method. Background technique [0002] With the continuous growth of enterprise network scale and the massive deployment of cloud-based network environments, data center networks have also become significantly more complex. In the data center network, due to the rapid increase in the number of bridges required, virtualization technology increases the complexity of the data center network and changes the network deployment method of the data center. Contents of the invention [0003] The invention provides a distributed virtual switching device and a forwarding method to realize a VXLAN-based distributed virtual switching device spanning a data center physical network and data forwarding in the device. [0004] Technical scheme of the present invention is realized like this: [0005] A distributed virtual sw...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/741H04L45/74
CPCH04L12/6418H04L12/4633H04L12/4641
Inventor 常慧锋
Owner NEW H3C TECH CO LTD
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