Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Root information aging method and equipment

A technology for root information and equipment, applied in the field of root information aging methods and equipment, can solve the problems of network topology oscillation, temporary traffic interruption in seconds, and links cannot be quickly migrated, so as to accelerate aging, avoid looping, and improve convergence. effect of speed

Active Publication Date: 2013-02-06
XINHUASAN INFORMATION TECH CO LTD
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the circling period of old root messages, it is easy to cause network topology shocks, and some links cannot be quickly migrated, resulting in second-level temporary traffic interruption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Root information aging method and equipment
  • Root information aging method and equipment
  • Root information aging method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The present invention is further described for two scenarios as follows:

[0061] Scenario 1: The bridge ID of the root bridge device in the MSTP network becomes larger or STP is disabled;

[0062] Scenario 2: The bridge MAC address of the intermediate device in the MSTP network becomes larger.

[0063] Figure 4 The flow chart of the root information aging method in the MSTP network provided by Embodiment 1 of the present invention, such as Figure 4 As shown, the specific steps are as follows:

[0064] Step 401: When the root bridge device in the MSTP network finds that its bridge ID has become larger or its own STP is closed, it actively sends a root information aging message from each designated port leading to the downstream network. The generation period of the message satisfies: at the next hop Aging directly, and starting the old root message filtering timer at the same time. Before the filtering timer expires, if the root bridge device receives a message wh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a root information aging method and equipment. According to the root information aging method, MSTP (multiple spanning tree protocol) network equipment discovers that root information is aged and sends a root information aging message from all specified ports of the network equipment, wherein the generation period of the message meets the following conditions: the root information is directly aged at the next hop, and an aged root message filtering timer is started at the same time, and before the filtering timer is overtime, messages received by the network equipment and corresponding to the aged root information are directly discarded; downstream equipment receives the root information aging message, immediately ages the corresponding root information on the downstream equipment according to a root bridge ID (identity) and a send bridge ID in the message and starts the aged root message filtering timer at the same time; before the filtering timer is overtime, messages received by the downstream equipment and corresponding to the aged root information are directly discarded; and meanwhile, if the root bridge ID and the send bridge ID in the root information aging message are identical, the downstream equipment continues to spread the root information aging message from all specified ports of the downstream equipment. According to the root information aging method and the equipment, the circulating and residues of the aged root information in an MSTP network are avoided.

Description

technical field [0001] The invention relates to the technical field of Multiple Spanning Tree Protocol (MSTP, Multiple Spanning Tree Protocol), in particular to a root information aging method and equipment. Background technique [0002] The MSTP defined by the Institute of Electrical and Electronics Engineers (IEEE, Institute of Electrical and Electronic Engineers) 802.1S standard in the Spanning Tree Protocol (STP, Spanning Tree Protocol) family calculates multiple multiple spanning tree instances (MSTI, Multiple Spanning Tree Instance) spanning tree topology, and domains are connected through a common spanning tree (CST, Common Spanning Tree). The devices running STP can calculate a loop-free tree network topology with a unique tree root node in the entire network by notifying each other of root vector messages. Among the various port roles in the tree topology, the port that leads to the root bridge and provides forwarding paths is the root port; the blocked port that l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/753
Inventor 王明军
Owner XINHUASAN INFORMATION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com