Supercharge Your Innovation With Domain-Expert AI Agents!

Message forwarding method of distributed apparatus and distributed apparatus and single board thereof

A technology for distributed equipment and message forwarding, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as message errors, message forwarding errors, and failure of the longest message matching principle, so as to reduce failures. , to achieve maintenance, reduce the effect of message forwarding errors

Active Publication Date: 2012-01-04
NEW H3C TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] At this time, according to the longest match principle, all packets whose destination IP is in the network segment 2.2.2.2 should be matched with ARP entry 2.2.2.2 and forwarded through ARP entry 2.2.2.2, but because ARP entry 2.2 .2.2 failed to be delivered, so all packet traffic with the destination IP in the network segment 2.2.2.2 can only be matched with the routing table entry 2.2.2.0 / 24 and delivered through the ARP table entry 1.1.1.1, so because the neighbor table There is no forwarding according to the longest match between the entry and the routing table entry, resulting in a packet forwarding error
[0015] It can be seen that in the existing technology, when a single board cannot deliver all neighbor entries and / or routing entries due to specification restrictions, the longest match principle for packet forwarding will fail, resulting in packet errors

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
  • Message forwarding method of distributed apparatus and distributed apparatus and single board thereof
  • Message forwarding method of distributed apparatus and distributed apparatus and single board thereof
  • Message forwarding method of distributed apparatus and distributed apparatus and single board thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0093] Example 1: Assume that there are ARP entry 1.1.1.1, ARP entry 2.2.2.2, and the next hop is 1.1.1.1, that is, routing entry 3.3.3.0 / 24 pointing to ARP entry 1.1.1.1, and the following One hop is 2.2.2.2, that is, the routing entry 3.3.0.0 / 16 pointing to the ARP entry 2.2.2.2.

[0094] If the capacity of the neighbor entries of board A is not full, board A will successfully deliver ARP entries 1.1.1.1, ARP entries 2.2.2.2, routing entries 3.3.3.0 / 24, and routing entries 3.3.0.0 / 16 to this board and recorded in the first software table;

[0095] The neighbor table entry capacity of the single board B is sufficient to send the ARP table entry 2.2.2.2 and the routing table entry 3.3.0.0 / 16 pointing to the ARP table entry 2.2.2.2 to the board, and record it in the first software table; thereafter, The capacity of the neighbor entry of board B is full, which is not enough to deliver ARP entry 1.1.1.1. Correspondingly, the routing entry 3.3.3.0 / 24 pointing to ARP entry 1.1.1.1...

example 2

[0122] Example 2: Assume that there is an ARP entry 1.1.1.1, an ARP entry 2.2.2.2, and a routing entry 2.2.2.0 / 24 with a next hop of 1.1.1.1, which points to the ARP entry 1.1.1.1.

[0123] If the neighbor entry capacity of board A is not full, board A will successfully deliver ARP entry 1.1.1.1, ARP entry 2.2.2.2, and routing entry 2.2.2.0 / 24 to the board and record it in the first in the software table;

[0124]Board B successfully delivered the ARP entry 1.1.1.1 and the routing entry 2.2.2.0 / 24 to the board, and recorded it in the first software table; after that, the capacity of the neighbor entries of board B was full or insufficient Then send the ARP entry 2.2.2.2, so the hardware layer forwarding table and the first software table match the same IP address with the undelivered ARP entry 2.2.2.2, and the mask length is smaller than the ARP entry 2.2.2.2 Delete the routing table entry 2.2.2.0 / 24, and then issue the proxy entry pointing to board A for this board, and reco...

example 3

[0143] Example 3: It is still assumed that there are ARP entry 1.1.1.1, ARP entry 2.2.2.2, and a routing entry 3.3.3.0 / 24 with a next hop of 1.1.1.1, which points to ARP entry 1.1.1.1, and The next hop is 2.2.2.2, that is, the routing entry 3.3.0.0 / 16 pointing to the ARP entry 2.2.2.2.

[0144] If the capacity of the neighbor entries of board A is not full, board A will successfully deliver ARP entries 1.1.1.1, ARP entries 2.2.2.2, routing entries 3.3.3.0 / 24, and routing entries 3.3.0.0 / 16 to this board and recorded in the first software table;

[0145] The neighbor table entry capacity of the single board B is sufficient to send the ARP table entry 2.2.2.2 and the routing table entry 3.3.0.0 / 16 pointing to the ARP table entry 2.2.2.2 to the board, and record it in the first software table; thereafter, The capacity of the neighbor entry of board B is full, which is not enough to deliver ARP entry 1.1.1.1. Correspondingly, the routing entry 3.3.3.0 / 24 pointing to ARP entry 1.1...

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 message forwarding method of distributed apparatus and distributed apparatus and single board thereof. In the invention, when the single board is not enough for issuing all forwarding list items, the single board forwards the agent list items for the present board and forwards the message agent corresponding to the unissued forwarding list items according to the agent list items to other single boards which have been issued with forwarding list items. So that, even if the single board can not issue all forwarding list items because of the specification limitation, butthe messages corresponding to the unissued forwarding list items can be acted for the other single boards which have been issued with forwarding list items to forward, thereby reducing the possibility that the longest matching principal of the message forwarding is ineffective and reducing the message forwarding errors, selectively, the invention can record issued forwarding list items and unissued list items respectively by using two software lists to implement the maintenances of the single board forwarding list items.

Description

technical field [0001] The invention relates to message forwarding technology, in particular to a message forwarding method of distributed equipment, a distributed equipment, a single board in the distributed equipment, and a method for maintaining forwarding table items of the distributed equipment. Background technique [0002] For example, distributed devices such as switches and routers usually include several single boards such as a main control board, a service board, and an interface board. Each single board will deliver the forwarding table entry for this board, and then realize the forwarding of the message according to the forwarding table entry and based on the three-layer switching principle. Wherein, the forwarding table entry includes a routing table entry and a neighbor table entry. For the 4th version of the IP protocol (IPv4), the neighbor table entry is an Address Resolution Protocol (ARP) table entry; for the 6th version of the IP protocol, the neighbor ta...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/56H04L45/74
Inventor 李捷
Owner NEW H3C TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com