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Data packet forwarding method and switching device

A technology of data packets and switching equipment, applied in the field of network communication, can solve problems such as lack of system resources, large forwarding table items, and limit switch access user capacity, so as to achieve the effect of improving performance resources and reducing space resources

Inactive Publication Date: 2011-02-02
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In the existing above-mentioned method, although the forwarding of data message can be realized, the MAC address learned by all ports needs to be bidirectionally copied between the primary VLAN and the secondary VLAN due to the switch running PVLAN, which will greatly waste the switch. Moreover, if there are many access users, through the above two-way replication, the established forwarding table entries will be very large, resulting in a lack of system resources, and further limiting the capacity of the switch access users

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  • Data packet forwarding method and switching device
  • Data packet forwarding method and switching device
  • Data packet forwarding method and switching device

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] see figure 2 , figure 2 A basic flow chart of data message forwarding provided by the embodiment of the present invention. This embodiment is applied to a data network including at least two mutually isolated secondary VLANs and at least one primary VLAN, wherein the primary VLAN and the secondary VLAN have a certain mapping relationship. Such as figure 2 As shown, the method mainly includes the following steps:

[0024] Step 201, configure a service loopback group for a switching device running PVLAN.

[0025] Here, the service loopback group may correspond to a single port, or may correspond to an aggregation port of multiple ports, and its function is equivalent to a chip.

[0026] In addition, the switching device running the PV...

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Abstract

The invention provides a data message forwarding method and exchange equipment. The method comprises the following steps: configuring a service loop back group for the exchange equipment operating PVLAN; re-orientating the received data message to the service loop back group by a downlink port of the exchange equipment; stripping off the network identification information carried by the data message by the service loop back group; looping the stripped data message in the service loop back group to enable the looped data message to carry the network identification information of a master VLAN;and forwarding the data message carrying the network identification information of the master VLAN according to the network identification information of the master VLAN and a destination MAC addresscarried by the data message. The method can obviate the mutual copy operation of the MAC address studied by all of the ports of the exchange equipment between the master VLAN and slave VLANs.

Description

technical field [0001] The invention relates to network communication technology, in particular to a data message forwarding method and switching equipment. Background technique [0002] With the continuous development of network technology and users' higher and higher security requirements for network communication, a private virtual local area network (PVLAN: Private VLAN) technology has emerged. Among them, the PVLAN has a two-layer VLAN structure, the first layer is the main VLAN, which is used for uplink; the second layer is the secondary VLAN, which is used to access users, and the primary VLAN and the secondary VLAN have a certain mapping relationship, so, for As far as the upstream device is concerned, it only needs to identify the primary VLAN. [0003] see figure 1 , figure 1 It is a schematic structural diagram of a PVLAN in the prior art. Such as figure 1 As shown, PC (personal computer) 1, PC2, PC3, switch 1 and switch 2 communicate with switch 0 through po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/46H04L12/70
Inventor 陆强
Owner NEW H3C TECH CO LTD