Enjoy Internet !

1. 240b::1Copyright(C) JPNE, All Rights Reserved.
日本ネットワークイネイブラー株式会社
(JPNE)
中川あきら
APRICOT 2015
MAP-E as IPv4 over IPv6 Technology
- with some operational experiences -
日本ネットワークイネイブラー株式会社
(JPNE)
中川あきら
日本ネットワークイネイブラー株式会社
(JPNE)
中川あきら
Mar.4.2015
Japan Network Enabler Corporation
(JPNE)
Akira Nakagawa

2. 240b::2240b::2Copyright(C) JPNE, All Rights Reserved.
Agenda
1. Why MAP-E ?
2. Our Experiences

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Some ways of IPv6 Transition
Network operators can choose the best one
according to their strategy.
Translation
•Enables Traffic Engineering
without DPI.
Tunnel
Stateful at
center
(NAT64/CGN)
•Enables small
start
Stateless at
center
•No logging
•No session
management
•Center node scales
because it doesn’t
have session table
464XLAT
MAP-EDS-Lite
MAP-T

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IPv4
Internet
IPv6
Internet
What is MAP-E ?
IPv6
Network
Home Router
BR
IPv4 IPv6 BR :
Border Relay
IPv4 over IPv6
IPv4
IPv4
IPv6
•Terminates Tunnel
•IPv4 NAT
•Terminates Tunnel
•IPv4 Address Sharing
•Stateless (no CGN)
•no Logging Server

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MAP-E in our Network
IPv4
Internet
IPv6
Internet
BR
BR : Border Relay
SPI : Stateful Packet Inspection
IPv4 over IPv6
IPv4 over IPv6
Home Router
(v4NAT/v6SPI)
IPv6
JPNE
IPv6 NW
DNS cache
IPv6
Home Router
(v4NAT/v6SPI)
Stateless,
(not CGN)
IPv6

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Why MAP-E for JPNE ?
 Easy Operation
 no Logging (deferent from CGN)
 no session management
 Center node scales according to only
traffic, not number of users.
 Easy Customer Support
 no Configuration at Home Router
 Avoiding traffic from Center Node
 Direct communication between users

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Why MAP-E for Users ?
 Users don’t care IPv4, IPv6,
stateless, stateful...
We always try to let users
keep unaware of MAP-E.

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Our Final Goal
v4 Sunset
v6
Internet
v4
Internet
JPNE)
IPv4
over
IPv6
offloading IPv6
Final Goal
Steps
1. Overlaying IPv4
on IPv6.
2. Offloading traffic
to simple IPv6.
3. Removing
overplayed IPv4.

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Agenda
1. Why MAP-E ?
2. Our Experiences

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Speed Test via Internet
NOT special
environment.
down
1st 2nd 3rd
IPv4
(MAP-E)
800 799 814
823 817 810
820 818 807
Ave. 814 811 810
IPv6
814 768 814
845 501 751
860 748 792
Ave. 840 672 786
(Mbps)
Cerulean Hotel
in Tokyo (Dec.3.2014)
PC
Home Router
Temporal
Event NW
Speed Test Site
IPv6: IIJmio
http://speedtest6.iijmio.jp/
IPv4: Radish Network Speed Testing
http://netspeed.studio-radish.com/
Ethernet

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Enough Ports per user
 Number of port per user is fixed in MAP-E.
 We tried over-subscribing test before designing
our MAP-E NW.
 We assigned enough ports per user.
9:22
9:24
9:26
9:28
9:30
9:32
9:34
9:36
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9:40
9:42
9:44
9:46
9:48
9:50
9:52
9:54
9:56
9:58
10:…
10:…
10:…
10:…
10:…
10:…
10:…
10:…
10:…
10:…
10:…
10:…
10:…
Enough ports
per end-user
Used ports during the test
Number of Port / user

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IPv6/IPv4 Trouble shooting
Test１：IPv4 Internet IP reachability
Test２：IPv4 Internet with Name resolution (*)
Test３：IPv6 Internet IP reachability
Test４：IPv6 Internet with Name resolution (*)
Test５：IPv6 Backbone IP reachability
Test６：IPv6 Backbone with Name resolution (*)
Test1,2
We simplified
trouble shooting
by tool.
(see next page)
DNS(*)
IPv4
Internet
IPv6
Internet
Test5,6
Test3,4

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IPv6/IPv4 Trouble Shooting (Movie)

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Abuse Issue (General Issue)
Good
behaviors
Some Content holders
who didn’t have port
number might not
have found the sender.
Content
/ Server
ISP Needed both options
to prevent this.
(1) Taking log of Port number
at Server
(2) Reducing possibility of
abuse by off-loading
traffic to IPv6
IPv4
Address
Sharing
Bad
behaviors

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Traffic growth
Traffic growth indicates number of MAP-E
Users are increasing.
bps
201405
201406
201407
201408
201409
201410
201411
201412
201501
201502

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Destination based traffic
bps
Most of IPv6 traffic is Google.

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IPv6 Traffic Ratio
 20％ of Internet traffic is IPv6.
 Gradually increasing.
201405
201406
201407
201408
201409
201410
201411
201412
201501
201502

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Summary
MAP-E is Stable, Easy operation, Easy
Customer support.
Speed is fast enough.
Effective to use some v4/v6 tools to
operate dual stack network.
One important thing is to offload traffic to
IPv6.

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http://jpne.co.jp