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Method for realizing redundant gateway path overhead dynamic regulation and gate way equipment

A path overhead and redundant gateway technology, applied in the field of redundant gateways, can solve the problems of inoperability, lack of flexibility, and difficulty in management of large-scale networks, and achieve the effect of improving self-adjustment ability and intelligence

Active Publication Date: 2007-08-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, this method of manually adjusting the static routing table is not easy to manage and lacks flexibility; in addition, it is almost inoperable for large-scale networks to perform static configuration after switching on each routing device in the network

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  • Method for realizing redundant gateway path overhead dynamic regulation and gate way equipment
  • Method for realizing redundant gateway path overhead dynamic regulation and gate way equipment
  • Method for realizing redundant gateway path overhead dynamic regulation and gate way equipment

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Embodiment 1

[0062] In this embodiment, we may assume that the gateway redundancy protocol used by the gateways in the gateway group is VRRPv2, and the routing protocol used is OSPFv2. As we all know, the OSPFv2 routing protocol is a typical link-state (Link-state) routing protocol, and is generally used in the same routing domain (Autonomous System, AS for short). In this AS, all OSPF routers maintain an AS structure database with the same description, which stores the status information of the corresponding links in the routing domain, and the OSPF router calculates its OSPF routing table through this database. As a link state routing protocol, OSPF transmits link state information message LSA to all routers in a certain area. In addition, the advertisement methods of the access network D include but are not limited to AS internal routes, AS external routes, etc. Different advertisement methods will use different LSAs to describe in OSPFv2. If the access network D is advertised as an OSP...

Embodiment 2

[0070] In this embodiment, we may assume that the gateway redundancy protocol used by the gateway devices in the gateway group is VRRPv3, and the routing protocol used is BGP4+. As we all know, BGP4+ is a border gateway protocol that supports IPv6, and BGP4+ is an extension of the BGP4 protocol. Since the routing information between the gateway device in the gateway group and the upstream routing device is transmitted in the form of an UPDATE message, it can be seen from the format of the UPDATE message that the information sent by the active and standby gateway devices to the upstream routing device Routing attributes, including the source of the route, the autonomous domain (AS) passed, the local preference of the route (local-preference), the weight (weight), and the multi-exit distance (or called external measurement, MULTI EXIT DISC, MED for short) and other information, the upstream routing device determines the validity of the route based on this information, and decide...

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Abstract

A method for dynamically regulating path overhead of redundant gateway includes using gateway redundant protocol to regulate path overhead value of access network on master / standby gateway according to information of master / standby gateway in redundant gateway set, informing regulated result of path overhead value on master / standby gateway to up-stream route device by utilizing route protocol.

Description

technical field [0001] The present invention relates to a redundant gateway (Gateway for short GW) technology, in particular to a method for realizing dynamic adjustment of redundant gateway path overhead and gateway equipment. Background technique [0002] With the increasing popularity of Ethernet (Internet) and the increasing complexity of network deployment, people are increasingly dependent on the network. At the same time, the coupling of various business modules is also increasing, which brings Some problems that come need new technology to solve. In order to ensure the high stability and reliability of the network, various technologies such as link redundancy, routing redundancy, and equipment redundancy and their combinations are used to realize the recovery and redundancy of the network. key features. In order to ensure the reliability of the client (for example, personal computer PC) to the gateway, the redundant gateway technology is used, and in order to ensur...

Claims

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Application Information

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IPC IPC(8): H04L1/22H04L12/66H04L29/06H04L12/56H04L12/28H04L45/28
Inventor 朱皓
Owner NEW H3C TECH CO LTD
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