IPv6 - the real drivers for adoption (IPv6 centric designs / aka what to

49 Pages·2013·7.03 MB·English

IPv6 - the real drivers for adoption (IPv6 centric
designs / aka what to do with an infinite number of
addresses)

Steve Simlo, IPv6 Product Manager
@stevesimlo
[email protected] @cisco6lab
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December 2013 © 2013 Cisco and/or its affiliates. All rights reserved.
Next Generation Networks Research Day – Image By: B. Silva
December 2013 © 2013 Cisco and/or its affiliates. All rights reserved.
Next Generation Networks Research Day –
December 2013 © 2013 Cisco and/or its affiliates. All rights reserved.
The Genetic Hourglass
From; “Extraordinary origins, unlikely superpowers: the turtle
genome unveiled” by Rachel Gross
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The Internet Hourglass
••  WIPe i sw tehree Ignitveernn e4t ’sb illion unique
IBPu aildddinregs Bsleosc kto work with
•  We’re using pretty much all of them
(for the first time in about 30 years)
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22B
22
2
0
1
8 15B
1
6
FIPuvt6u rUen Gleraoswhtehs C Ihnatellrennegt eGsr oWwitthh IPv4
14
1
> 4B
s 2
e
c
i 1
v
e
D 0
L2-Tags IPv4 Ports •  Subtended NATs
t
e 8 •  Short IP Leases
n
r
e •  Tunnels and Overlays
t
n
•  Global routing table growth
I 6
of •  Buying/Selling 5IPB ad dress space

s
•  Less IP aggregation
n
o
i 4 •  Camping on bogon IP space
l
il “Usable” Global IPv4 Addresses
B •  Application-Level Gateways
Addresses in Global Routing Table •  Reviving 240 reserved space Routed IPv4 Addresses
2
•  Shared-SRP oIPuvt4e sdpa cIPe v4 Addresses
2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020
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Scaling Challenges with IPv4
Subscribers Service Provider Internet
Carrier Grade NAT
Local
“CGN”
IPv4
Local Local
IPv4 IIPPIPvv44v 4 IPv4
Local
IPv4
IPv4
“Local” IP moves into the SP
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30
20
15
10
5
Next Generation Networks Research Day –
December 2013 © 2013 Cisco and/or its affiliates. All rights reserved.
30
20
15
10
5
Next Generation Networks Research Day –
December 2013 © 2013 Cisco and/or its affiliates. All rights reserved.