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About VXLAN

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by

JungIn Jung

on 2 April 2014

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Transcript of About VXLAN

About V
X
LAN
Comparison
What is V
X
LAN?
e
X
tensible
Overlay Network
Network Engineering
Summary
Overcome 4K Limit
V
X
LAN vs. VLAN
Migrate
Network Engineering
"
X
"
e
X
tensible L2
Overlay Netowrk
L2 Segment
4K
→
16M
Multicast
per Group
239.0.0.0/8
(2^24=16,777,216)
En/De-Capsulation
V
X
LAN Tunnel & Packet
Outer Mac Header
Outer IP Header
Outer UDP Header
VXLAN Header
Original
L2 Frame
50Byte
Mac over IP/UDP
Added 50Byte Header
Require Jumbo Frame
VTEP
VTEP
Traditional
Mac Address Table
V
X
LAN
Save Network Bandwidth
Traffic Isolation
Decrease in Packet Floods
Flat Address
by
VTEP
(
V
X
LAN
T
unnel
E
nd
P
oint)
V
X
LAN, L2 over L3
Inter Zone/Region
...Anywhere...
(8Byte)
(8Byte)
(20Byte)
(14Byte)
but, CPU Overhead
Require IGMP Snooping
on Switch
Thank you
http://www.tecnologika.co.uk/wp-content/uploads/Arista_Networks_VXLAN_White_Paper.pdf
http://www.tecnologika.co.uk/wp-content/uploads/Arista_Networks_VXLAN_White_Paper.pdf
VLAN is L2 Domin
All MACs!!!
too many....
Relatively,
very small !!
http://cfile27.uf.tistory.com/image/11335E3B508008B010CA1E
VXLAN
V
X
LAN Packet Travel
(En/De Capsulation)
A
-->
D
S-MAC: aa
D-MAC: dd
S-IP: AA
D-IP: DD
S-MAC: aa
D-MAC: dd
S-IP: AA
D-IP: DD
S-IP: M-AA
D-IP: M-BB
S-MAC: m-aa
D-MAC: m-bb
S-MAC: aa
D-MAC: dd
S-IP: AA
D-IP: DD
S-MAC: aa
D-MAC: dd
S-IP: AA
D-IP: DD
S-IP: M-AA
D-IP: M-BB
S-MAC: m-aa
D-MAC: m-bb
D
Encapsulation
Decapsulation
START
END
Prezi Movie
http://goo.gl/kKPJsM
A
Jung Jung In
call518@gmail.com
Full transcript