Meridian: An SDN Platform for
Cloud Network Services
Mohammad Banikazemi, David Olshefski, Anees
Shaikh, John Tracey, and Guohui Wang,
IBM T. J. Watson Research Center
IEEE Communications Magazine 2013
101062600 紀成璞
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Outline
Introduction
 SDN
 Meridian architeure
 Meridian implementation
 Summary

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Introduction
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Faster? convenient?
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SDN CAN HELP YOU!
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Software Defined Networks

我系統都寫好也測試好
了可以麻煩你幫我正式
佈署上線嘛?
喔這個等下你直接跟
NAdmin講，網路設定是由
他們負責的~
OK~ 我已經幫你灌了
5個在機架上 ，系統參
數都設定好，也幫你
把DB都灌好了，等下
就幫你把程式佈署上
去~
喔對了系統會需要用到
8080,63382,3233...port，
然後會必須要…….
沒問題~我已經幫你把
Juniper 的VPN Gateway 連
線設好了
引用[1]
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If we use SDN……
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
我系統都寫好也測
試好了可以麻煩你
幫我正式佈署上線
嘛?
OK~ 我已經幫你灌了
5個在機架上 ，系統
參數都設定好，也幫
你把DB都灌好
了，….blablabla
喔對了系統會需要用到
8080,63382,3233...port，
然後會必須要…….
…..
ok~這簡單Security
Group 我已經幫你開這
幾個Port了…..blablabla
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So …. How SDN help Cloud Networking?
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SDN Architecture for Cloud
Netwroking
Meridian
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Abstract API layer



Present application with a network model
Associated APIs that expose only the information needed to
interact with the network
Logical view of the network using high-level APIs.
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0
Network Orchestration platform






Logical-to-physical translation of commands issued through the
abstraction layer
Convert API calls into the appropriate series of commands on the
underlying network
Network-wide service to application.
Global annotated view of the data center topology for applications
Different routing algorithms
Planner module that can schedule network configuration
or control task
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0
Network driver layer





Consists of plug-in or drivers enable the controller to interface
with various network technologies or tools.
The orchestration layer uses these drivers to issue commands on
specific devices or collect information from the network.
Implemented a logical driver that interfaces to OpenFlow devices
Drivers to enable virtual network creation
Topology data gathered
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Meridian Implementation
How it works?
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
For Any cloud-based applications.
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
1.Endpoint
2.Group
3.Segment
4.Service
5.Virtnet
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
For Any cloud-based applications.
G1{web1,web2}
G2{APP1,APP2}
G3{db1,db2}
{G1,G2,LB}
{G2,G3,bandwidth}
{APP1,APP2,SPF}
{db1,db2,broadcast}
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Summary



Meridain, an SDN-based controller framework for cloud
networking.
A network service model for users to construct and manage logical
topologies for their complex workloads.
Current system is only an initial prototype.
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Future work
Performance
 Recovery failed plans

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Thanks !
20/20
reference


Floodlight:http://www.projectfloodlight.or
g/floodlight/
[1]SDN example :http://lab.howie.tw/2013/04/How-Software-Defined-Network-SDN-impat-traditional-IT-Job.html
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