1. Juniper Networks IPv6 Implementation
Global IPv6 Summit
Yokohama, Japan
December 2001
Todd Shimizu

2. Agenda Addressing & Forwarding Routing Protocols
Operations & Transition
IPv4
IPv6

3. 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

4. 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

5. 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

6. 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
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7. 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

8. 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

9. Operations & Transition
SNMP widely used, but not comprehensive
Transition in networks is rarely simple
Many examples: ATM/FRIP, SNAIP, 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

10. 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

11. 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

12. 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

13. 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

14. Thank you!