A dynamic host configuration protocol message processing method and device

A technology of dynamic host configuration and protocol message, applied in the field of network communication, it can solve the problems of multiple network traffic, not supporting PIM multicast, and occupying a lot of network resources, saving network resources, avoiding the reduction of the number of virtual local area networks, and reducing network resources. The effect of traffic

Active Publication Date: 2017-04-05
HUAWEI CLOUD COMPUTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Generally, the switching endpoint to which the source virtual machine belongs uses the PIM (Protocol Independent Multicast, Protocol Independent Multicast) multicast method to learn the MAC address of the destination virtual machine and the IP address of the tunnel endpoint. The PIM multicast specification of the switching endpoint is relatively small. , generally supports 500-2000 multicast groups, and some switch endpoints may not support PIM multicast, and VXLAN can support 16M VNIs in standard, so in the existing VXLAN network, due to the number of switch endpoint multicast groups Insufficient or no support for multicast will result in a limited number of VNIs created, which will affect the number of virtual LANs created in the data center network, and the switch endpoints use multicast to communicate in the virtual LAN, which requires more network traffic. More resource usage

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  • A dynamic host configuration protocol message processing method and device
  • A dynamic host configuration protocol message processing method and device
  • A dynamic host configuration protocol message processing method and device

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0056] Such as Figure 1A Shown is a data center network architecture diagram provided by an embodiment of the present invention, Figure 1A The switching endpoint (the switching endpoint described in the embodiment of the present invention can be a physical switch, or a VTEP (VXLAN Tunnel End Point, virtual tunnel endpoint device) can provide encapsulation and decapsulation capabilities, and record each of its own Information about the virtual ...

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Abstract

The invention discloses a dynamic host configuration protocol message processing method and device, which receives a DHCP request message forwarded by a first switching endpoint to which a source virtual machine belongs, and the DHCP request message carries an identifier of a virtual local area network to which the source virtual machine belongs; according to the source The identification of the virtual local area network to which the virtual machine belongs is determined as the IP address of the DHCP service node served by the source virtual machine; according to the IP address of the determined DHCP service node, the IP address of the second switch endpoint to which the DHCP service node belongs is determined; The endpoint sends a forwarding instruction, and the forwarding instruction carries the IP address of the second switching endpoint, so that the first switching endpoint sends the DHCP request message in unicast form to the second switching endpoint according to the IP address of the second switching endpoint . Through the present invention, the switching endpoint of the destination virtual machine can be determined in a unicast manner, thereby reducing the usage of network traffic in the virtual local area network and saving network resources.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and device for processing a dynamic host configuration protocol message. Background technique [0002] With the wide application of virtual technology, the space of VLAN (Virtual Local Area Network, Virtual Local Area Network) in the data center network can no longer meet the demand of the data center network for virtual local area network. To make up for the shortage of VLAN space, VXLAN (Virtual eXtensible Local Area Network , Virtual Extensible LAN) came into being. [0003] VXLAN builds a virtualized layer-2 network on the physical layer-3 network by using tunnel port technology on the source virtual machine side, and creates a large number of virtual local area networks on the existing network architecture. Different virtual local area networks use VNI (VXLANNetwork Identifier, virtual scalable LAN Network Identifier) ​​for identification, each VNI ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L29/12
CPCH04L61/5014
Inventor 宋宇熊志强张永森
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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