Border Gateway Protocol Bgp In Ipv6 Networks, Applications And Research

BGP-4+ is an interautonomous system routing protocol, which is very widely deployed on IPv6 networks. At present, BGP-4+ is one of the most important protocols for communicating autonomous systems.This paper introduces the technology of Multiprotocol Extensions for BGP-4(BGP-4+) which extends BGP-4 to enable it to carry routing information for IPv6o Two abilities are added to BGP-4, they are (a) the ability to associate a particular Network Layer protocol with the next hop information, and (b) the ability to associate a particular Network Layer protocol with NLRI. Two new attributes, MP_REACH_NLRI, and MP_UNREACH_NLRI are used for the purpose of conveying IPv6 routing information.China networks center started the experiments project of the BGP networks connection on IPv6 testbed in December of 2002. The project also called BIGBANG, which aims to introduce BGP into CERNET IPv6 testbed. The problem of BGP applied on IPv6 networks can be studied by widely application of BGP.The Lanzhou University of Technology IPv6 testbed fulfilled BGP-4+ in IPv6 router imitated by GNU Zebra under Linux. The IPv6 testbed was assigned AS65008. Its IPv6 unicast was allowed instead of IPv4 unicast. The network 3ffe:3240:8002::/48 was advertised. The BGP neighbor of CERNET IPv6 testbed was established and activated. Finally LUT succeeded to join to the BIGBANG project in March 2003. A mass of BGP routing information was received from the neighbor. The analysis of the BGP routing information was presented. At last the globle AS topology is given at the end of this paper.The successful connection of BGP-4+ enhances LUT the important node position in the northwest IPv6 networks. At same time, the administration abilities and experiences on BGP-4+ of the staff in LUT IPv6 testbed have been greatly improved.