Transcript 20121001-Theodoras-Emerging Tech in Optical

Emerging Technologies in
Optical Transport Networks
Jim Theodoras
October 2012
Agile Core Network
• Real intelligence lies at higher layers – in the Routers
Hybrid
EDFA/RAMAN
Amp
Gridless
ROADM
Intelligent
MUX
Router
2
Coherent
Receiver
Agile
Core
Network
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Router
Control Plane Integration
IP/MPLS
Network
Router
IP/MPLS
Network
Agile Optical Core
Border
Router
Border
Router
Router
Router
ENNI
ENNI
Router
Router
MPLS
3
Router
GMPLS
MPLS
Routing
Path Computation
Signaling
OSPF
Shortest Path
RSVP
OSPF-TE
Recursive Lambda
RSVP-TE
GMPLS-OSPF
Remote Computation
GMPLS-RSVP
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Lab demonstration
• ADVA’s YouTube channel, advaoptical
http://www.youtube.com/user/ADVAOptical
4
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LSP establishment
Node 2
MD-ROADM
Node 1
Directionless
ROADM
Directionless
ROADM
Color
Interface
MD-ROADM
Hansel
Node 4
LSP1
5
Node 3
LSP2
Color
Interface
Gretel
LSP2 LSP1
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ADVA OPTICAL NETWORKING
PIONEERS OPENFLOW IN THE
OPTICAL DOMAIN
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Software Defined Networking
App
App
App
App
Networking
Applications
Open API
Virtual Network Slices
Networking
Virtualization
Open API
Programmable
networks
enable new
networking
paradigms
through
flexibility,
Network Operating System
Unifying
Abstraction
agility, and
virtualization!
Data Plane
7
Switching &
Forwarding
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What is OpenFlow?
Circuit Switching Extensions
Circuit Flows
In
Port
In
Lambda
VCG
Starting
Time-Slot
Signal
8
Type
Out
Port
Out
Lambda
VCG
Starting Signal
8
Time-Slot Type
ADVA extends OpenFlow into the Optical Wavelength Switched Domain
8
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Optical OpenFlow Solutions
Big Fat Switch (BFS)
CP assisted OpenFlow
(CPO)
Optical OpenFlow
Switching (OOS)
OpenFlow
Agent
Optical Network
• Optical Network acts as one
Virtual Switch
• Optical Network visible in
OpenFlow Controller
• Optical Network fully controlled
by OpenFlow
• Plain packet-based OpenFlow
Controller
• OpenFlow Controller with
Circuit Switching extensions
and Control Plane Assistance
• OpenFlow Controller and
OpenFlow Protocol requires
Optical extensions
• OpenFlow Agent on each NE
• OpenFlow agent on each NE
models optical constraints
• Optical layer functionality is
abstracted by single OpenFlow
agent
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ADVA Optical OpenFlow Prototype
Lightpath Setup / Teardown with
Optical Power Balancing &
Optical Impairment Awareness
OpenFlow Prototype for
FSP 3000 ROADM platform
Topology & Node Discovery
Optical Node Model
Dynamic Switching Constraints
OFELIA Optical OpenFlow Networking
Testbed at University of Essex
OpenFlow
Controller
1:N WSS
WSS
1:N WSS
WSS
WSS λ Block
1:N WSS
WSS
1:N WSS
λ2λ3
TX
C
10
1:N WSS
WSS
CFLOW_MOD
λ1
Any λ
CFLOW_MOD
CFLOW_MOD
OpenFlow
Agent
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OpenFlow
Agent
OpenFlow
Agent
Application Controlled Optical PCE Demo
Aalborg, May 10-11, 2012
PCE based Media App over
Extended Controller
(2) Submit Request including
User Context
Path
Computati
on
(3) Reserve Resources
(1) Publish Service and
Infrastructure Information
Request
High Capacity
Network
Streaming
Server
End-User
Visualization
Facility
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• Joint IT & Network Orchestration
for Cloud Services
• Network
Virtualization
• Long-Distance
Datacenter Interconnects
• Dial-up Bandwidth Services
• Service Elasticity & Mobility
• Custom Networking Apps
• …
12
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Stuart Elby, Verizon, Open Networking Summit, Apr. 2012
Use Cases
OFELIA Overview &
OpenFlow for Optical Networks
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What is OpenFlow?
Providing the tools for software defined networks
OFELIA
Vision
 The aim of the OFELIA project is to create a unique
experimental facility that allows researchers to not only
experiment 'on' a test network but to control the network itself
precisely and dynamically. To achieve this, the OFELIA facility
is based on OpenFlow, a currently emerging networking
technology that allows to virtualize and control the network
environment through secure and standardized interfaces.”
OF extensions needed for multi-layer, multi-domain
Any domain or layer borders require flow processing; Interface between
Advances controller and processing plug-ins needs to be developed & tested
beyond state
 Extend filter format description to generic labels (CarrierEther,IPv6,
of the art.
opt. circuits, so-called OF v2.0 (?))
Priorities
w.r.t.
 non-IP experiments such as content-based addressing
scientific
 CONVERGENCE FP7 project
challenges.  Multi-domain OpenFlow requires controller/controller communication
27./ 28. April 2011
OFELIA Project Overview
NW
Control
application
OpenFlow
controller
Switch
packet/
circuits
Processing
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OFELIA - Aim and Partners.
Complimentary strength & representation of important research
communities.
X
ETH
X
MM source
UEssex
US connections
X
X
processing
I2cat
Control SW
X
emulation
TUB
Wireless
X
L3
iBBT
L1/optics
 NEC provides homogeneous L2 hardware platform (OFenabled Ethernet switches)
 ADVA as major vendor of optical access and data center
equipment
 Different external vendors (HP, Extreme, Juniper)
 Explore extensions of OpenFlow towards wireless and
optical transmission
Partners with complementary
technological strengths and
user groups from five
countries with strong
research communities
in networking.
L2
 5 OpenFlow-enabed islands at academic institutions:
 Berlin (TUB) – partial replacement of existing
campus network with OF-switches
 Ghent (IBBT) – central hub, large-scale emulation
wall
 Zürich (ETH) – connection to OneLab and GpENI
 Barcelona (i2CAT) – experience with facility
projects (IaaS, FEDERICA)
 Essex (UEssex) – national hub for UK optical
community; L2 (Extreme) switches, FPGA testbed
partner
Federation of five islands
X
X
X
X
X
X
X
X
X
X
Additional partners and European manufacturers will be involved through Open Calls
27./ 28. April 2011
EC - Review - Project Introduction
15
L1/L0 Openflow Integration
Integrated network model
Switch flow table and openflow protocol agent/engine are integrated in ADVA equipment
•
NOX Controller
Extreme
CG
Ethernet
Domain
NEC
Extreme
NetFPGA
Domain
ADVA
16
NetFPGA
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NEC
Campus
Domain
UEssex Island – Optical Testbed
N3
Ext. L2/L1/L0 OpenFlow Controller (NOX)
N2
N1
Eth. Sw. 3
Col. IF /
DWDM XFP
Eth. Sw. 2
Eth. Sw. 1
Col. IF /
DWDM XFP
Node #1
Col. IF /
DWDM XFP
Deg-4
ROADM
(8-WSS)
Node #2
c/d-less
8ch a/d
Deg-2 eROADM
40ch fixed a/d
(PLC)
17
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Deg-2
ROADM
(8-WSS)
Node #3
c/d-less
8ch a/d
Sample ROADM Node architecture
Crossconnection:
C12, 19  N2
Eth. Sw.
Amplifier
Splitter / Coupler
Col. IF /
DWDM XFP
1xn Wavelength Selective Switch (WSS)
(with Variable Optical Amplifier (VOA))
(color-selective Mux/Demux)
ROADM
4 Degree
Multiple shelves
#C1 … #C8
#C9 … #C16
Client Ports
nxm Wavelength Selective Switch (WSS)
(with Variable Optical Amplifier (VOA))
P4  P2
Add/Drop
Group #1
Add/Drop
Group #2
40/80ch Multiplexer
Transponders
Amp.
Line Port
#N1
Line Port
#N3
N1
N3
Line Port
#N4
Line Port
#N2
N4
N2
19  P2
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ILA
The Telefónica solution
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Scope of the trial
• Demonstrate how to get automated network automation in
IP/MPLS network over DWDM
• Rationale:
•
•
•
Transport and IP/MPLS networks operate indipendently and
uncoordinately
Network resources are often underutilised
Traditional service provisioning takes significatively long times
• IP Offloading Manager (designed by Telefonica I+D) provides
automatization and coordination for both transport and IP/MPLS
network domains.
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The IP Offloading Manager
•
Prototype developed by Telefonica I+D
•
Basic tasks:
•
•
•
•
Network configurations supervision
Automatic configuration of the network element
Multilayer Restoration
Further additional features under study
Controller: central entity of the IP offloading manager.
receiving external information and commands and carry
out the required actions.
Administration interface: This module shows a human
friendly representation of the network and it allows
manual command operation.
Monitoring: This module receives the network
information and it sends it to the controller
SNMP
• CLI (IP Router)
(IP router bandwidht
information)
• UNI (Optical
Dispatcher: it runs commands to configure the network
devices, based on the controller instructions
equipment)
GUI interface
21
© 2012 ADVA Optical Networking. All rights reserved. Confidential.
Equipment used for the test
• Juniper – MX series router – 10G channel (grey interfaces)
• ADVA – FSP 3000 release 10.2.4
•
•
•
MD ROADM
10G links provided by WCC-PCTN-10G cards
40channel filters
• Remote nodes (Rostock and Schwerin in the live network)
equipped with FSP 3000 shelf - only used for traffic loopback
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Case Scenario (1/3) – Topology
Testlab Hamburg
Live network provided by
Telefonica (see next slide)
Data Plane
Control Plane
ADVA GMPLS Domain
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Case Scenario (2/3) – Live network
• All the test were run on a live network scenario
• Testlab in Hamburg – infrastructure to Schwein/Rostock provided
by Telefonica Germany
• 10G links over FSP 3000 Core (see next slides)
140 km
90 km
FSP3000 R7 B2B
regeneration
24
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Case Scenario (3/3) – ADVA Equipment
25
© 2012 ADVA Optical Networking. All rights reserved. Confidential.
Case 1 – IP Circuit provisioning
172.16.100.3
172.16.100.1
Resources
Reserved
R_ONE
RSVP PATH
MESSAGE
R_TWO
RSVP RESV
MESSAGE
TE-LINK
180.0.0.2
TE-LINK
181.0.0.2
TE-LINK
180.0.0.1
TE-LINK
181.0.0.1
ADVA
ROSTOCK
ONE
ADVA
Resources
Reserved
TWO
Resources
Reserved
SCHWERIN
Please activate presentation mode!
26
R_THREE
Resources
Reserved
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ADVA
THREE
Circuit Provisioning/De-provisioning
• Test of the automatic configuration of the NEs when the operator
requests a new IP circuit
IP Circuit provisioning time: 49s
27
IP Circuit de-provisioning time: 4s
© 2012 ADVA Optical Networking. All rights reserved. Confidential.
Case 2 – Automatic link creation
• IP Offload manager monitors the IP traffic volume
• Test the IPOM to reroute IP traffic when its volume is above a
configurable threshold
• Rerouting is done requesting the establishment of a new link
• Rollback threshold to return to normal operation
New circuit provisioning Time interval to estabilish a
new link
Circuit deprovisioning
Resources are released –
back to normal op.
Configured Threshold
Rollback Threshold
28
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Case 3 – Multilayer restoration
•
Same mechanism can be used for network (IP Routers) failures
•
Provides CAPEX and OPEX Savings
•
Extend MTTR up to 20 times
29
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Conclusions
• Field trial provides proof of interoperability between ADVA/Juniper
equipment and an 3rd party “umbrella” management interface
• Considerable savings in OPEX
•
•
Extremely reduced time for IP over WDM circuit provisioning time
Automatic configuration of new circuits in case of high traffic loads
• Considerable savings in CAPEX
•
30
Automatic recovery of IP circuits
© 2012 ADVA Optical Networking. All rights reserved. Confidential.
Thank you
[email protected]
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