Transcript ppt - AsiaFI

Zhongxing Ming
Dan Li
Chumei Xia
Mingwei Xu
2016/4/11
Tsinghua University
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 Contents
•
•
•
•
matter more
Web caching
Multicast, video conferencing
Subscription/publication services
Security and privacy
 Addresses
matter less
• Limited in supply.
• Some are non-reachable, e.g., private v4, or isolated
v6.
• More and more are moving.
 Quite
a few proposals to make network content
centric rather than location centric.
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IP: 202.106.30.4
P = 202.106.30.4
S = Video Streaming
I = Harry Potter
Youku
SIONA router
S = Video Streaming
I = Harry Potter
YouTube
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IP: 59.72.38.236
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P(IP) : S(Service) : I(Information) O(Offset), L(Length), F(Flag)
Data Name
•
•
•
•
•
•
P:
S:
I:
O:
L:
F:
Attributes
IP address
Service
Information
Offset
Length
flag
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8. Cache data
1. Register(P, S, I)
5. Request(P, S, I)
7. Data
10. Cache data
Server
3. Request(P, S, I)
8. Cache data
11. Data
13. Data
Client
7. Data
5. Request(P, S, I)
1. Register(P, S, I)
12. Request(P, S, I)
13. Data
12. Request(P, S, I)
Client
Server
Client
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•RT: Registration Table
•DS: Data Store
•FIB: Forwarding Information Base
•RIT: Request Interface Table
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YouTube
1~20min
21~50min
71~90min
51~70min
91~120min
Harry Potter
PC
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Internet
Internet
BS A
Cell A
BS B
Mobile IP
BS A
BS B
Cell A
Cell B
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SIONA
Cell B



ID/Locator split mechanisms try to solve this problem,
but they all introduce new indirection, or require some
form of rendezvous points to keep reachability.
SIONA provides multihoming functionality without path
indirection, nor any rendezvous point.
Nodes just issue register and request packets using
whatever interface they like, and the routing and
forwarding mechanism of the network ensures the
packets to reach the right destination.
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Base_ttl = 30
Base_ttl = 10
Simulation Topology
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Router 1
Router 2
client 2
# of cache hit
server 1
server 2
Zipf distribution
client 1
Simulation Duration
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

SIONA is built on name-based content routing
paradigm as is advocated in CCN/NDN.
We differ from CCN/NDN in several ways: SIONA
closely keeps the ties to IP.
• more like a complementary function of today’s IP network
• multi-source multicast and network layer P2P


SIONA differs from DONA in the way that is a tree
based architecture, while SIONA is not. SIONA also has
different name resolution scheme and routing
mechanism.
SIONA gives particular focus on services except for
information.
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 Content
Centric Network is an exciting area in
future Internet research activities.
 SIONA provides a promising candidate for ICN
• Scalable name-based data delivery
• Inherent support for mobility and multihoming
• Compatible with IP
• Multi-source multicast
• Network layer P2P
• Coordinate caching mechanism
 Working
in progress
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Thank you
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