Analysis of Voice Performance between IPv4 and IPv6 Networks on IPv6 over MPLS (Cisco 6PE) Environment
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2011 is turning into a crunch year for adopting the new standard for the Internet addressing, called IPv6, because IPv4 addresses have almost run out, and more businesses and institutions see the necessity of migrating to an IPv6 addressing system. An IPv6 address is 128 bits, which means that, in theory, there are 2128 addresses available, which represents approximately the number of grains of sand on our planet. The Internet is a constantly evolving environment, which puts pressures on existing and evolving systems. Any protocol changes should be carefully designed and even more
carefully deployed to avoid any disruption to the running system. It is no longer possible to deploy IPv6 infrastructure overnight, so engineers are considering various transition and evolution strategies. Deploying IPv6 over Multiprotocol Label Switching (MPLS) backbones can be used for
a transition from IPv4 to IPv6. Cisco 6PE (IPv6 over MPLS) enabled backbones allow IPv6 domains to communicate with each other over an MPLS IPv4 core network. This implementation requires no backbone infrastructure upgrades and no reconfiguration of core routers, because forwarding is based on labels rather than on the IP header itself. We did a comparison of VoIP performance on IPv4 and IPv6 networks in the presence of varying levels of background UDP traffic, by using a powerful IXIA 400T traffic generator device to test performance and analyzed network traffic flows with the use of IxExplorer, which provides a high level of flexibility and functionality in protocol emulation, traffic generation, and analysis. IxExplorer is the primary controlling application for Ixia's purpose-built hardware test platform, allowing detailed configuration of protocols and analysis of test results.
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http://purl.org/coar/resource_type/c_93fc
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en