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Method for supporting multiplex extraterritorial service quality based on route information protocol

A routing protocol, quality of service technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as slow convergence, poor security, and no support for classless IP addresses

Inactive Publication Date: 2007-11-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although RIP is simple and easy to implement, and has been tested for a long time, it also has some important defects. The main points are as follows: it is too simple, calculates the metric value based on the number of hops, and often obtains a non-optimal route; the metric value is based on 16, not suitable for large networks; poor security, accept routing updates from any device; does not support classless IP addresses and VLSM (Variable Length Subnet Mask, variable length subnet mask); slow convergence, often longer than 5 minutes; Consumes a lot of bandwidth

Method used

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  • Method for supporting multiplex extraterritorial service quality based on route information protocol
  • Method for supporting multiplex extraterritorial service quality based on route information protocol
  • Method for supporting multiplex extraterritorial service quality based on route information protocol

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Embodiment Construction

[0018] Receive PVA packets sent by border routers in other adjacent domains: When QRIP receives PVA packets, it first judges whether the PVA packets are outdated according to the sequence number of the PVA packets: if it is outdated, it will be discarded without processing; The border routers of other adjacent domains broadcast this PVA packet, and calculate the optimal route from the local router to the destination network address prefix of other domains based on the path information carried by the PVA packet and the routing information from the local router to the router that generated the PVA packet , and update the route to the inter-domain routing table. Then notify the route management module of the route update information.

[0019] Receiving the intra-domain route redistributed by route management: When QRIP receives the intra-domain route redistributed by route management, it will update the route to the inter-domain routing table, and at the same time send the update...

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Abstract

A method for supporting multiple type of extra-domain service quality based on route information protocol includes updating local path information when PVA packet sent from boundary router adjacent to the other domain is received by boundary router, calculating out optimum routes to relevant destination network address prefix, sending these routes to boundary router adjacent to the other domain and to route management module in PVA packet mode, sending these routes to boundary router adjacent to the other domain in PVA packet mode and simultaneously updating path information in local area when intra-domain route redistributed from route management module is received by boundary router.

Description

technical field [0001] The method for supporting multiple qualities of service based on the RIP protocol belongs to the technical field of the Internet, and in particular relates to router forwarding technology at the network layer. Background technique [0002] RIP (Routing Information Protocols, Routing Information Protocol) is the most widely used distance vector protocol, which was developed by Xerox in the 1970s. At that time, RIP was part of the XNS (Xerox Network Service, Xerox Network Service) protocol suite. The TCP / IP version of RIP is an improved version of the Xerox protocol. The biggest feature of RIP is that it is very simple regardless of its implementation principle or configuration method. The measurement of RIP is based on the hop count (hops count), and every time a router passes through, the hop count of the path is increased by one. In this way, the more hops, the longer the path, and the RIP algorithm will preferentially select the path with fewer ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56H04L45/748
Inventor 崔勇周云涛桂涛
Owner TSINGHUA UNIV
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