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Method and device realizing PVLAN through OpenFlow protocol

An openflow protocol and purpose technology, applied in the communication field, can solve the problems of large main VLAN MAC table, decreased forwarding rate, lack of application layer connection flow monitoring, etc.

Active Publication Date: 2014-09-03
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The traditional implementation based on media access control (MAC) forwarding implements message forwarding by copying the MAC table in the sub-VLAN to the main VLAN. Port shielding in the VLAN is realized through port isolation. Since the MAC table in the sub-VLAN They are all copied to the main VLAN, which will cause the MAC table of the main VLAN to be very large. If the software is implemented, the forwarding rate will decrease
Based on MAC forwarding, lack of monitoring of application layer connection flow

Method used

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  • Method and device realizing PVLAN through OpenFlow protocol
  • Method and device realizing PVLAN through OpenFlow protocol
  • Method and device realizing PVLAN through OpenFlow protocol

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040] Example 1: Uplink unicast packets of isolated VLAN

[0041] When the message is a unicast message in which the sub-VLAN to which the ingress port belongs is an isolated VLAN, if the VDSs to which the ingress port and the destination port respectively belong are different, construct a first flow table; otherwise, discard the unicast message Wherein, the packet header field of the first flow table includes the ingress port and the destination MAC, and the action field includes setting the VLAN as the main VLAN and forwarding through the uplink port.

[0042] In this example, when the OpenFlow controller receives a unicast packet sent by the server and the source port of the sub-VLAN belongs to the isolated VLAN, the port in the isolated VLAN can only communicate with ports other than the VDS where it is located. , cannot communicate with any port in the isolated VLAN or Community VLAN in the same VDS, so after determining that the destination port of the unicast message d...

example 2

[0048] Example 2: Uplink unicast packets of Community VLAN

[0049] When the message is a unicast message in which the sub-VLAN to which the ingress port belongs is a Community VLAN, if the respective sub-VLANs to which the ingress port and the destination port belong are the same Community VLAN in the same main VLAN, or the ingress port Different from the VDS to which the destination ports belong respectively, construct a second flow table; otherwise, discard the unicast message; wherein, the packet header field of the second flow table includes the ingress port and destination MAC, and the action field includes Set the VLAN as the main VLAN and forward it through the uplink port.

[0050] Here, the ingress port and destination MAC address in the delivered flow table are the contents contained in the Header Fields, and the egress port and the set primary VLAN are the contents contained in the Action. Wherein, the outgoing port is the port number of the VEPA switch connected ...

example 3

[0053] Example 3: Downlink unicast packets of isolated VLAN / Community VLAN

[0054] When the message is a unicast message whose ingress port is an uplink port, construct a third flow table, the header field of the third flow table includes the ingress port and destination MAC, and the action domain includes forwarding through the destination port .

[0055] In the flow table delivered in this example, the Header Fields can include the inbound port number, primary VLAN ID, source MAC address, and destination MAC address, and the Action includes the forwarded outbound port number. Wherein, the inbound port number is the uplink port receiving the unicast message, that is, the port number connecting the VEPA switch to the edge switch, and the outbound port number is the port corresponding to the destination MAC address of the unicast message.

[0056] Since the uplink unicast packets of isolated VLAN and community VLAN are filtered according to their characteristics at the sendin...

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Abstract

The invention discloses a method realizing a PVLAN through an OpenFlow protocol; the method uses the OpenFlow protocol to realize the PVLAN; whether a message is forwarded or not can be controlled in a OpenFlow controller; a MAC chart in a sub VLAN needs not to be copied to a main VLAN. The invention also provides a device based on the same invention conception; a chart item of the main VLAN cannot use a large memory when the PVLAN is realized, and a message forwarding rate cannot be reduced.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for realizing PVLAN based on the OpenFlow protocol. Background technique [0002] With the increasing business of data centers and the continuous improvement of user requirements, the scale and functions of data centers are becoming more and more complex, and the management difficulty is also becoming more and more difficult. In this context, integrating data centers, reducing data center management costs, and fully exploiting existing resource capabilities to meet higher business needs have become important tasks for enterprise data centers. Virtualizing data center resources has become an important trend in data center integration. [0003] Virtualization technology abstracts physical resources and provided services, so that resource users and system managers do not care about the details of the physical characteristics of objects and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801H04L12/947H04L12/46H04L45/74
CPCH04L45/74H04L49/253H04L49/351
Inventor 林涛任维春刘阳张连雷
Owner NEW H3C TECH CO LTD
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