Test method for obtaining load factors of router and system thereof

Abstract

The invention discloses a test method for obtaining load factors of a router in a BGP / MPLS VPN environment and a system thereof. The test method comprises the following steps: connecting a test instrument with a PE router in an MPLS / IP network; sending at least two test streams to the tested router by the test instrument, wherein, values of test parameters to be tested in each test stream are different, and other parameters are fixed; and recording link sharing condition in the stream output direction of the tested router, if traffic of the test stream can load sharing, judging the tested router can take the test parameters as the load factors for participating in load sharing calculation. By adopting the test method, the load factors on which the router performs VPN traffic load sharing can be conveniently and efficiently tested, and the effect for starting VPN traffic load sharing in a practical network traffic environment according to the obtained test results, which provides instruction opinions for deployment of the VPN traffic load sharing function of each equipment in a practical network, and the test results have greater reference value.

Description

technical field [0001] The invention relates to a testing technology of a router traffic load sharing mechanism, in particular to a testing method and system for obtaining a router load factor in a border gateway protocol / multiprotocol label switching (BGP / MPLS) virtual private network (VPN) environment. Background technique [0002] RFC2547 defines a technical method for establishing a virtual private network in a Multi-Protocol Label Switching / Internet Protocol (MPLS / IP) network, namely BGP / MPLS VPN. With the large-scale deployment of BGP / MPLS VPN technology in telecom operators' backbone networks and the rapid growth of VPN users and traffic, it is an urgent need to implement VPN traffic load sharing in MPLS / IP backbone networks. The research and test of the VPN traffic load factor of the router, the basic unit of the MPLS / IP backbone network, has become the basis for deploying VPN load sharing. [0003] At present, there are many test methods for the VPN traffic load sh...

AI Technical Summary

Problems solved by technology

[0004] First, the focus is on the number of equal-cost paths and traffic sharing effects of VPN traffic load sharing in a specific traffic environment. The test results have certain limitations, and are not strong in guiding, referencing, and quoting for actual network deployment.

[0005] Second, the black box test method cannot obtain the load factors used by routers for load sharing of VPN traffic, such as outer labels, inner labels, IP source addresses, IP destination addresses, source port numbers, and destination port numbers. Systematically study the functional mechanism of routers for load sharing in the BGP / MPLS VPN environment

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