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IPv4 and its limitation The initial design of IPv4 did not anticipate: • Growth of the Internet and Exhaustion of the IPv4 address space • Large routing tables in backbone routers • Flat and hierarchical routing • Need for simpler address configuration • Manual • DHCP • No native IP level security • IPSec • Proprietary security solutions • Need for better QoS • TOS field in IPv4 • UDP or TCP ports
ABCs of IPv6 • New version of the Internet Protocol • Developed to alleviate IPv4 address exhaustion • Improve upon IP protocol based on operational experience of IPv4 in the Global Internet • 128 bit addressing • Simplified header makes forwarding algorithms more efficient • New extensions and options • Neighbor Discovery subsystem replaces ARP • Requires Path MTU Discovery – eliminates fragmentation in transit • No more ARP: • Neighbor Discovery helps discover adjacencies • Router advertisement functions for “last hop” configuration • Dynamic provisioning components as well as DHCPv6
IPv6 Trends • Flexibility is the key trend in IPv6 today • Basic data-plane handling is standardized • But, transition technologies (tunneling, interworking and migration) are still in relative flux • Importance of flexibility in data plane • Importance of Wirespeed IPv6 support • Data plane, network layer IPv6 forwarding • Wirespeed Transition protocols
IPv6 Drivers • 3G services – multimedia and triple-play convergences • Peer-to-Peer Networking and Computing • File sharing and Instant Messaging • Home-networking • Networked-domestic appliances • VoIP • Home Entertainment systems Manufacturers • Online gaming software developers • Or Essentially any services with significant IP addressing requirement will benefits from adopting IPv6. The benefits are unique addressing, autoconfiguration, renumbering and globally routable.
Who is asking for IPv6 Today? • North America • Department of Defense • Federal Government • Universities • Application and OS vendors • Europe • EU governments • Interest from 3G community – telecommunications (mobile) sector • Getting some initial interest from the ISP community • Japan, Korea and China (Fast Growing….) • Educational market • Service Providers • Government • Internet Appliance vendors (IPv6-enabled devices) • Asia • Everyone (Singapore, Thailand, etc) • Worldwide Trends • Started off primarily in Asia and Europe, but US is picking up dramatically
A recent IPv6 survey results:(with 200 Government IT Managers) • About 43 percent of respondents said they'd inventoried their existing devices for IPv6-readiness. • Interestingly, 51 percent said they'd implement IPv6 all the way to the desktop (the current mandate applies only to network backbones by June 2008). • Just 14 percent said implementation is underway at their agency ( but with two years to go, that's not shocking) • Less than 8 percent said their agencies had finished their transition plans (not shocking either). • 4 percent actually said they were done. • In fact, what the survey actually says: IPv6 is seen as an IT issue, not a business issue • Security is the top reason to move to IPv6 • Most had no idea what their agencies were doing with IPv6 http://www.gcn.com/blogs/tech/41168.html
IPv6 is out there – are you ready ? • IPv6 is readily available for Windows 2000/XP/2003, MAC-OS, Linux • As IPv6 traffic may enter the network, the infrastructure needs to be made ready for it to protect you • ACL security • IP Address Security (equivalents to ARP, ICMP and DHCP security and monitoring) • DoS testing of the infrastructure • To turn on IPv6, control plane needs to be supported • L2+: ICMPv6, MLD Snooping, … • L3: static routes, RIPng, OSPFv3, … • IPv6 enabled applications (Telnet, SSH, traceroute, pingv6, …) • There is no D-Day – you’ll need Interworking / Migration technologies (6to4, conf tunnels, ...)
IPv6 Transition Mechanisms • IPv4 and IPv6 will coexist and migration will take years • Dual-Stack, Tunnelling and Translation
Non-Computing Devices Broadening deployment of wireless (802.11b/a/g, UWB) Power Over Ethernet Computing Systems Growth Optimization Survival Extreme Network’s Vision on IPv6 • Massive proliferation ofdevices • New and more demanding applications on a global level • The changing role of networks in conducting business
Extreme Solution Extreme Technology Revolution • Wire Speed Gigabit Ethernet ASICs • Native QoS and Security Features • Enhanced Traffic Shaping • Consistent Software & Management • Full Standards Based Layer 3 Features • Simpler Management Applications Extreme introduced a family of simple, fast, highly intelligent, hardware-based switches to replace complex software-based routers “Ethernet and IP Everywhere”
Extreme History with IPv6 • Extreme Networks was one of the first vendors to release IPv6 software, Extreme began IPv6 development as early as year 2000 with a team that has over 18 combined person-years of IPv6 experience, with members of the team that implemented the worlds first IPv6 implementation in 1995 at Naval Research Lab. • Participating in IPv6 Demonstration Collaborative Initiative in conjunction with the University of New Hampshire Interoperability Labs (Moonv6) • The tests will demonstrate the functionality of IPv6 including proper base specification, routing and mobility functions with the network infrastructure supporting DNS for IPv6, NFS, streaming media, common business applications and Web browsing. • Success customer: Telecom Italia Lab (TILAB)
Multi-Terabit ArchitectureLPM Routing for IPv4, IPv6, MPLS T-Flex to Accommodate Evolving StandardsProgrammable packet parserProgrammable packet editor Advanced Metro Ethernet CapabilitiesTunneling, translation, frame stackingScaling for massive address spaces Virtually Infinite CapacitiesExtensive Access Control Lists T-Stat statistics – programmable counters Prepared for Proliferation of Devices1 Million+ devices Ability to track, monitor, account for 1M+ devices Control, restrict, rewrite, redirect 1M+ devices Extreme Hardware BlackDiamond 10K/12K
Extreme Software - XOS • Highly Available Modular OS • Memory protection • Process Monitoring and Restart • Hitless failover/upgrade • DoS Protection • Open-ness - Add New features faster • POSIX APIs gives a great starting point for new code • XML data representation and APIs enable easy integration with best-of-breed software and appliances • TCL and scriptable CLI enable easier management
Edge to Core IPv6 Enabled Infrastructure Dual-stack in clients, Unified Access, Intelligent Core and servers. Telnet, SSH, Ping, Traceroute BD 8800 Summit X450 BD10K IPv6 ACLs for Security at the Edge and in the Core • L2+ infrastructure: • MLD v1/v2 router requirements, • ICMPv6 router requirements with Path MTU Discovery L2 hardware assisted forwarding, 9K Jumbo Frames, Protocol based VLANs L3 Routing: OSPFv3, RIPng,Static Routes L3: Hardware assisted L3 forwarding. Hardware assisted configured tunnels and 6to4 to connect between v6 islands locally and through the internet. High performance in Core