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Method for declaring enabled virtual local area network (VLAN) and equipment thereof

A technology of equipment and bridge equipment, applied in the field of enabling VLAN declaration method and equipment field, can solve the problems of multi-byte, waste of network resources, too large Hello packet, etc.

Inactive Publication Date: 2012-01-11
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the RB device has many enabled VLANs, using the existing method may cause the Enabled-VLANs sub-TLV to occupy more words. bytes, causing the Hello packet to be too large and wasting network resources

Method used

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  • Method for declaring enabled virtual local area network (VLAN) and equipment thereof
  • Method for declaring enabled virtual local area network (VLAN) and equipment thereof
  • Method for declaring enabled virtual local area network (VLAN) and equipment thereof

Examples

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Embodiment Construction

[0044] In the prior art, the enabled VLAN information unit for declaring RB equipment can be Enabled-VLANs sub-TLV, and its format is defined as figure 2 As shown, the definition of the VLAN bit-map field is as follows: the variable-length field is in bytes, and the 8 bits in each byte correspond to 8 consecutive VLANs in turn, and the first byte in the first byte The VLAN corresponding to 1 bit is the VLAN indicated by "Start VLAN ID". The value of each bit (0 or 1) corresponds to whether the corresponding VLAN is enabled (if the bit is 0, it indicates that the corresponding VLAN is not enabled by the RB device). enabled VLAN, and the bit is 1, indicating that the corresponding VLAN is the enabled VLAN of the RB device). For example, if the value of the Start VLAN ID is 1 and the VLAN bit-map is 01011111 11111110, it indicates that the VLANs enabled on the port of the RB device are VLAN2 and VLAN4-15. Obviously, the enabled VLANs of the RB device are declared through the Enab...

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Abstract

The invention discloses a method for declaring an enabled virtual local area network (VLAN) and equipment thereof. The method comprises the following steps that: routing bridge (RB) equipment determines a quantity of continuous enabled VLANs in the enabled VLANs according to configuration of the enabled VLAN of the routing bridge equipment; when the quantity of the continuous enabled VLANs in the enabled VLANs is larger than a threshold, the RB equipment uses a first packaging format to package and declare an information unit of the enabled VLANs so as to declare the continuous enabled VLANs, wherein using the first packaging format to package the information unit means that an initial VLAN ID and a terminated VLAN ID of the continuous enabled VLANs in the information unit are marked; the RB equipment sends a Hello message carrying the information unit. In the invention, numbers of bytes occupied by the information unit which is used to declare the enabled VLANs are reduced. Therefore, the numbers of the bytes of the Hello message are reduced so that a purpose of saving network resources can be reached.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and equipment for enabling VLAN declaration. Background technique [0002] TRILL (Transparent Interconnection of Lots of Links) is an L2 (Layer 2) network standard recommended by IETF (Internet Engineering Task Force, Internet Engineering Task Force). Its network diagram can be as follows: figure 1 shown. TRILL is of great importance because large data centers begin to use new technologies such as FCoE (Fiber Channel over Ethernet, Fiber Channel over Ethernet) to integrate storage transmission and IP (Internet Protocol, Internet Protocol) transmission on Ethernet connections, while The standard STP protocol (Spanning Tree Protocol, Spanning Tree Protocol) will no longer be suitable for the expansion of a converged network or a super-large data center. As FCoE adoption increases, enterprise storage will start joining other protocols on IP (Internet Protocol) netwo...

Claims

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Application Information

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IPC IPC(8): H04L12/46
Inventor 邹文宇曹辉黄媛
Owner NEW H3C TECH CO LTD
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