addressing ipv6
Post on 09-Feb-2017
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Addressing IPv6@jta joão taveira araújo
me ~ last year
“…no one cares about IPv6…”
“…IPv6 is now in limited availability…”
me ~ this year
10.0.0.1
10.0.0.1
172.16.0.1
an IP address is who you are on the network
10.0.0.1
172.16.0.110.0.0.0/8
10.0.0.1
172.16.0.1172.16.0.0/16
10.0.0.0/810.0.0.0/8
an IP address is you are on the network{ }who
where
19 45678912304567891230897
IPng
“…to scale Internet addressing to accommodate the millions of designers needed to fix the MOSAIC logo…”
199
IPng
3456
IPv6
IPng- lots of good ideas - needed something deployable
- implemented none of them
IPng- lots of good ideas
- needed something deployable - implemented none of them
IPng- lots of good ideas
- needed something deployable
- implemented none of them
IPng 32 bits 128 bits
199
NAT
3
CIDR
10.0.0.1
10.0.0.1
193.0.1.1
me ~ last year
“…no one cares about IPv6…”
network engineers
HTTP(1996, 2015)
(1995, 1997, 1998, 2014)
companies where addressing sucks
datacenters
carriers
CDN
ƒ
CDN
ƒ-1
SJC
CDN addressing 101
LAXclients
Points of Presence
SJC
Unicast model
LAX
SJC
LAX
Prefix announcements
~1998
SJC
Unicast model
LAX
SJC
LAXDNS
offsetLAX offsetSJC
IP address
~1998
SJC
Unicast model
LAX
SJC
LAXDNS
offsetLAX offsetSJC
~1998
SJC
Unicast model
LAX
SJC
LAXDNS
offsetLAX offsetSJC
~1998
LAX
SJC
SJC
LAXDNS
offsetLAX
LAX
Unicast blackhole
SJC
SJC
LAX
SJC
Unicast DDoS
LAX
SJC
Anycast model
LAXDNS
Same prefix
offset
Anycast IP address
~2006
SJC
LAXDNS
offset
Anycast model ~2006
SJC
LAXDNS
offset
Anycast model ~2006
SJC
LAXDNS
offset
Anycast model ~2006
SYD
Anycast model
uses limited address space
SYD
Anycast model
uses limited address space
gracefully handles DDoS
SYD
Anycast model
uses limited address space
gracefully handles DDoS
impossible to fully control
2011 unicast2014 unicast + anycast2015 backing anycast
SYD
anycast prefix
SYD“unicast” prefix(subnetted from anycast prefix)
Backing anycast ~2015
SYD SYD
DNS
offset SYD
Backing anycast ~2015
SYD
Backing anycast ~2015
SYD
DNS
offset SYD
SYD
DNS
offset SYD
Backing anycast ~2015
SYD
DNS
offset SYD
Backing anycast ~2015
FRA FRA
control of unicast model
Backing anycast ~2015
FRA FRA
control of unicast model
gracefully handles DDoS
Backing anycast ~2015
FRA FRA
control of unicast model
gracefully handles DDoS
requires investment
Backing anycast ~2015
FRA FRA
control of unicast model
gracefully handles DDoS
requires investment
still not enough control
Backing anycast ~2015
❤
FRA
Service providers
💶💶💶💶
FRA FRA
offset FRA
Service providers
FRA FRA
FRA
offset FRA
Lousy providers
FRA FRA
FRA
offset FRA
Lousy providers
Lousy providers
Lousy providers
FRA FRA
FRA
offset FRA
Lousy providers
Per-provider addressing 2016
Per-provider addressing 2016
FRA
FRA
FRA
FRA
FRA
FRA
FRA
FRA
FRA
Per-provider addressing 2016
SYD
SYD
SYD
SYD
SYD
LAX
LAX
LAX
LAX
LAX
ASIA
ASIA
ASIA
ASIA
ASIA
SJC
SJC
SJC
SJCSJ
C
FRA FRA
Per-provider addressing 2016
offset FRA FRA
FRA
FRA
FRA
FRA
Per-provider addressing 2016
SYD
LAX
ASIA
SJC
www.example.com
www.example.com
www.example.com
www.example.com
www.example.com SJC
SJC
SJC
SJC
Per-provider addressing 2016
64 bit service identifier
Per-provider addressing 2016
FRA
Per-provider addressing 2016
deployed for IPv6
FRA
Per-provider addressing 2016
deployed for IPv6
graceful fallback
FRA
Per-provider addressing 2016
deployed for IPv6
graceful fallback
complete control of ingress path
FRA
Per-provider addressing 2016
deployed for IPv6
graceful fallback
complete control of ingress path
really really hard to implement
FRA
FRA
FRA
Per-provider origin pull 2016
FRA
Per-provider origin pull 2016
FRA
FRA
FRA
FRA
Questions
- limited availability - configuration complexity
- limit impact on global routing table
- higher order dimensionality
Questions
- limited availability
- configuration complexity - limit impact on global routing table
- higher order dimensionality
Questions
- limited availability
- configuration complexity
- limit impact on global routing table - higher order dimensionality
Questions
- limited availability
- configuration complexity
- limit impact on global routing table
- higher order dimensionality
Questions
Questions
why do you not implement X like Y?
Questions
because Y did a terrible job of it.
Questions
IPng
Questions
Questions
Questions
why is it taking you so long to get here?
Questions
Questions
Questions
end
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