Juniper Networks IPv6 Implementation Global IPv6 Summit Yokohama, Japan December 2001 Todd Shimizu
Agenda Addressing & Forwarding Routing Protocols Operations & Transition IPv4 IPv6
Juniper Networks IPv6 Philosophy “The Internet Classroom” The Internet Classroom Problems - provide experience and insights Insights – shape direction and development Production – creates purpose-built solutions to the problems IPv4 lessons are critical for success in IPv6 Perpetual Learning 2018/11/11 Juniper Networks, Inc. Copyright © 2001
IPv4 Addressing & Forwarding Address exhaust Private addressing & NAT introduce complexity DHCP eases configuration, but introduces server operational overhead Router performance Many Positives Datagram operations & dynamic routing IP ubiquity; TCP reliability: MPLS flexibility DHCP for stateful autoconfiguration CIDR for routing optimization Key Requirements Address expansion & aggregation Simplified configuration Hardware-based forwarding 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 JUNOS 5.1 Details Category Feature Forwarding IPv6 forwarding in hardware Addressing IPv6 Address types Global unicast address aggregation :hex format with zero suppression DNS AAAA Record Type Stateless auto-configuration Network prefix length notation Optional Headers Hop-by-hop Path MTU Discovery Host portion Router portion 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 JUNOS 5.1 Details Category Feature Neighbor Discovery Router discovery Prefix discovery Parameter discovery Address auto-configuration Address resolution Next-hop determination Neighbor unreachability detection Duplicate address detection 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 Routing Protocols No clear winner in IGP Scaling challenges with distance-vector protocols BGP scaling is critical for IPv4 or IPv6 Number of BGP peers, routing entries Convergence ISIS for IPv6 introduces very little change Designed with IPv6 extensibility in mind RIPng - important requirement for immediate IPv6 deployment BGP offers good support both IPv4 and IPv6 BGP carries IPv6 NLRI over TCP/IPv4 or TCP/IPv6 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 JUNOS 5.1 Details Category Feature Routing Static routes RIPng IS-IS BGP with v4 Peering BGP with v6 Peering 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Operations & Transition SNMP widely used, but not comprehensive Transition in networks is rarely simple Many examples: ATM/FRIP, SNAIP, etc. Long-term coexistence is a reality Features support often inconsistent Complementing SNMP Intuitive CLI APIs (e.g. XML) - accelerate new feature integration into OSS Keep transition as simple as possible Minimize interaction between multiple transition mechanisms Simple, consistent feature support & performance required 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 JUNOS 5.1 Details Category Feature ICMPv6 Destination unreachable Packet too big Time exceeded Parameter Problem Echo request/reply XML JUNOScript API Transition Dual stack Configured tunnels . 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 JUNOS 5.1 Details Category Feature Applications Ping Telnet Traceroute FTP Netstat tcpdump SSH 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 JUNOS 5.1 Details Category Feature Media Support Ethernet PPP NBMA ATM (all encapsulations) Frame Relay IPv6 Support Across All Platforms, Interfaces 2018/11/11 Juniper Networks, Inc. Copyright © 2001
Juniper Networks, Inc. Copyright © 2001 Summary IPv6 clearly needed to propel the Internet into new areas Knowledge and experience gained from IPv4 are paramount to building successful IPv6 networks Genuinely deployable IPv6 requires the right features, Internet scale, and uncompromising performance 2018/11/11 Juniper Networks, Inc. Copyright © 2001
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