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Interoperation of Layer-2/3 Modular Switches
with 8QAM/16QAM Integrated Coherent Optics
over 2000 km Open Line System
Mark...
layer 2/3
switch
layer 2/3
switch
transponder
UI
multi-
plexer
optical
switch
optical amplifiers optical
switch
multi-
ple...
SDN
layer 2/3
switch
layer 2/3
switch
transponder multi-
plexer
optical
switch
optical amplifiers optical
switch
multi-
pl...
Line card technology
Juniper QFX10000Cisco NCS5500Arista 7500R
freq f [THz] West East
f1
193.5375
Juniper Arista
193.6875
f2
193.5750
Cisco Juniper
193.7250
f3
193.6125
Arista Cisco
193...
Optical spectrum
DUT
bulk-
mod
bulk-
mod shaped ASEshaped ASE
Optical spectrum (2)
DUT
bulk-
mod
bulk-
mod shaped ASEshaped ASE
bulk
mod
bulk
mod
OLS testbed up to 4000 km
Launch power opt + constellations
FEC limit
8QAM @ 2000 km
BER/Q stability over time
8QAM @ 2000 km 16QAM @ 1000 km
FEC limit FEC limit
Interop demonstrated between 3 different switch suppliers
using ICO and 2 different electro-optic technologies
No performa...
Juniper
Cisco
Arista
Microsoft
mark.filer@microsoft.com
OFC 2017 (W4H.1) - Interoperability demonstration of commodity Ethernet optical switches over Open Line System (OLS)
OFC 2017 (W4H.1) - Interoperability demonstration of commodity Ethernet optical switches over Open Line System (OLS)
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OFC 2017 (W4H.1) - Interoperability demonstration of commodity Ethernet optical switches over Open Line System (OLS)

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Interoperation of Layer-2/3 Modular Switches with 8QAM/16QAM Integrated Coherent Optics over 2000 km Open Line System. Presented at OFC 2017.

Published in: Engineering
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OFC 2017 (W4H.1) - Interoperability demonstration of commodity Ethernet optical switches over Open Line System (OLS)

  1. 1. Interoperation of Layer-2/3 Modular Switches with 8QAM/16QAM Integrated Coherent Optics over 2000 km Open Line System Mark Filer1, Hacene Chaouch2, Xiaoxia Wu3, Jamie Gaudette1, Jeffrey L. Cox1 1. Microsoft Corporation, Redmond WA, 2. Arista Networks, Santa Clara CA, 3. Juniper Networks, Sunnyvale CA
  2. 2. layer 2/3 switch layer 2/3 switch transponder UI multi- plexer optical switch optical amplifiers optical switch multi- plexer transponder SDN Traditional “closed” line system
  3. 3. SDN layer 2/3 switch layer 2/3 switch transponder multi- plexer optical switch optical amplifiers optical switch multi- plexer transponder Open line system Streamlined feature set: • No electrical OTU switching • No optical BOD (i.e., contentionless) • No optical-layer restoration • Minimal meshiness
  4. 4. Line card technology Juniper QFX10000Cisco NCS5500Arista 7500R
  5. 5. freq f [THz] West East f1 193.5375 Juniper Arista 193.6875 f2 193.5750 Cisco Juniper 193.7250 f3 193.6125 Arista Cisco 193.7625 f4 193.6500 Ref. Ref. 193.8000 Line card configuration West East
  6. 6. Optical spectrum DUT bulk- mod bulk- mod shaped ASEshaped ASE
  7. 7. Optical spectrum (2) DUT bulk- mod bulk- mod shaped ASEshaped ASE bulk mod bulk mod
  8. 8. OLS testbed up to 4000 km
  9. 9. Launch power opt + constellations FEC limit 8QAM @ 2000 km
  10. 10. BER/Q stability over time 8QAM @ 2000 km 16QAM @ 1000 km FEC limit FEC limit
  11. 11. Interop demonstrated between 3 different switch suppliers using ICO and 2 different electro-optic technologies No performance tradeoffs necessary Coherent DSP is only piece of the chain spanning switching, routing, grey optics, and OLS which is not interoperable Summary
  12. 12. Juniper Cisco Arista Microsoft
  13. 13. mark.filer@microsoft.com

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