Method for realizing particular virtual local area network and device

A technology of virtual local area network and implementation method, which is applied in the direction of network interconnection, data exchange network, and data exchange through path configuration, etc. It can solve problems such as inability to meet network requirements, complex STP algorithm, waste of IP addresses, etc., and save hardware resources. The effect of spending

Inactive Publication Date: 2010-06-09
ZTE CORP
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  • Abstract
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Problems solved by technology

[0004] (1) Limitation of VLAN: The number of VLANs inherent in the switch is 4096, and this resource is limited;
[0005] (2) Spanning Tree Protocol (STP, Spanning Tree Protocol) management limitation: VLAN spanning tree topology management needs to run the STP algorithm according to the STP, and the STP algorithm is very complicated;
[0006] (3) Limitation of IP addresses: the number of IP addresses is limited, and the division of IP subnets, each IP subnet will occupy the corresponding IP address, so it will cause a waste of IP addresses;
[0007] (4) Routing restrictions: each subnet needs to be configured with a default gateway, which in turn requires maintenance an

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  • Method for realizing particular virtual local area network and device
  • Method for realizing particular virtual local area network and device
  • Method for realizing particular virtual local area network and device

Examples

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Embodiment Construction

[0033] The basic idea of ​​the present invention is to set the PVLAN port type of each port in the VLAN table of the ingress port and the VLAN table of the egress port of the created VLAN, and when the second layer data enters the switching device for forwarding, the data entry port is queried in the ingress port VLAN table The PVLAN port type in the data output port, and the PVLAN port type of the data output port in the output port VLAN table; by comparing the input port PVLAN port type and the output port PVLAN port type, it is determined that the data is forwarded when the forwarding requirements are met; so as to realize the function of PVLAN .

[0034] Hereinafter, the present invention will be further described in detail through the accompanying drawings and specific embodiments.

[0035] The implementation method of the dedicated virtual local area network of the present invention, such as figure 1 As shown, the method includes the following steps:

[0036] Step 101: Set the...

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Abstract

The invention discloses a method for realizing a particular virtual local area network, which comprises the steps of: setting the port type of the particular virtual local area network (PVLAN) of each port in an inlet VALN table and an outlet VLAN table of the built virtual local area network (PVLAN); and comparing the PVLAN port type of the inlet in the inlet VALN table with the PVLAN port type of the outlet in the outlet VALN table when two-stage date enters into switch equipment to be transferred; and transmitting the date when the transmission requirement is met. The invention further discloses a device for realizing the particular virtual local area network. The technical scheme of the invention can conveniently realize the PVLAN function and easily be dilated, and can save the resource overhead of hardware caused by finding complex port segregation tables.

Description

Technical field [0001] The present invention relates to virtual local area network technology in data communication, in particular to a method and device for realizing a dedicated virtual local area network. Background technique [0002] Virtual Local Area Network (VLAN, Virtual Local Area Network) was originally a technology generated to restrict broadcast messages on a Layer 2 network. VLAN divides a flat Layer 2 network into multiple Layer 2 subnets, and the subnets cannot communicate with each other. Limiting broadcast messages to one subnet increases the management performance and security performance of the Layer 2 network. [0003] With the rapid development of network applications, Ethernet has experienced the development of 10 Mbit Ethernet, 100 Mbit Fast Ethernet, 1 Gigabit Ethernet, and 10 Gigabit Ethernet. In this process, users are concerned about network scalability. Put forward higher and higher requirements. Nowadays, traditional VLAN technology can no longer solv...

Claims

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Application Information

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IPC IPC(8): H04L12/46
CPCH04L49/00H04L12/4641
Inventor 钱勇
Owner ZTE CORP
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