Future Internet Testbed and Future Internet Testbed and - - PowerPoint PPT Presentation

Future Internet Testbed and Future Internet Testbed and Multi-Domain OpenFlow M t i TWAREN Management in TWAREN

• Dr. Te-Lung Liu

NCHC,Taiwan

Overview

TWAREN FI Testbed Multi-Domain OpenFlow Management

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TWAREN OpenFlow Testbed in 2010

NOX

iCAIR

l

Capsulator

NCHC TWAREN L3

OpenFlow Switch

Capsulator

L3 Network

Capsulator Capsulator

OpenFlow Network @NCKU OpenFlow Network @KUAS @NCKU @

NCKU and KUAS are pilot universities that connected with the Testbed The OpenFlow Testbed is extended to iGENI@iCAIR The OpenFlow Testbed is extended to iGENI@iCAIR Capsulator (Ethernet-in-IP tunnel) is used to emulate pure L2 network for OpenFlow

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TWAREN OpenFlow Testbed in 2011

NCU

NCHC

TWAREN

Capsulator

VPLS

KUAS NCKU CHT-TL

NTUST

Capsulator Capsulator

NTUST, NCU and CHT-TL joined the Testbed. For TWAREN connectors (NCKU KUAS and NCU) a dedicated VPLS VLAN is

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For TWAREN connectors (NCKU, KUAS and NCU), a dedicated VPLS VLAN is allocated for better transmission performance.

Emulab/ProtoGENI Testbed

TWISC (Taiwan Information Security

Research and Education Center) 206 f

• perats 206 nodes of Emulab Testbed

in Taiwan.

Third largest Emulab in the world

g

Testbed@TWISC is operated by

NCKU team and co-located in NCHC

A portion of the testbed is planned to

A portion of the testbed is planned to

try ProtoGENI test with University of Utah.

A lightpath is provisioned between

NCHC and iCAIR shared by both OpenFlow and Emulab/ProtoGENI

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Lightpath and VLAN setup

iCAIR Lab Vlan 2782 iCAIR 7609P@HC Trunk Vlan 462 Vlan 2782 Trunk port Vlan 462 Vlan 2782 Vlan 462 Vlan 1548 iCAIR OF (with NCKU) – Vlan 2782 7609P@TN Emulab/ProtoGENI – Vlan 462 Vlan 462 Vlan 2782 Vlan 1548 Vlan 1555 7609V NCKU NCKU Vlan 2782 Vlan 1548 Vlan 1555 Vlan 462 NCHC

OF sw A OF sw B

7609V NCKU EE E l b/P t GENI Vl 462 Vlan 462 Vl 1548 Emulab @NCHC Emulab/ProtoGENI – Vlan 462 NCKU OF (with iCAIR) – Vlan 1548 Vlan 1548

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iGENI - Taiwan Integrated Research Network

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Multi-Domain OpenFlow Management

Each network domain has its own OF Controller

Each Controller manages topology and flow provisioning Each Controller manages topology and flow provisioning

inside the domain

Inter-domain flow could be made by connecting partial flows

provisioned by controllers of each cloud

Lack of global view for inter-domain flows No loops allowed for inter-domain topology Difficult to support QoS or SLA functions across domains

I d l d d f l

Inter-domain topology auto-discovery is required for multi-

domain management

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Inter-Domain Topology Discovery (I)

OpenFlow Controller just only knows its directly connected

switches.

ENVI is a useful GUI tool to show OpenFlow topology under

single controller.

OFA OFB OFC OFD Controller1 Controller2 Domain OF OF

Topology of Domain1

OF OF

Topology of Domain2

UI

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OFA OFB OFC OFD

Inter-Domain Topology Discovery (II)

We add additional contents in LLDP packet to let Controllers

have its neighbors’ connectivity details have its neighbors connectivity details.

ENVI is also modified to show the whole topology.

OFA OFB OFC OFD Controller1 Controller2 Domain OF OF OF OF UI

Topology of Domain1 & 2 10

OFA OFB OFC OFD

Results

Multi-Domain Network Topology shown in GUI shown in GUI Physical OpenFlow Network Topology

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Thank You !

THE THE

END END

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