Download GMPLS Interoperability test in Super SINET

GMPLS interoperability test
in Super SINET
Shoichiro Asano
The National Institute of Informatics
Hirokazu Ishimatsu
Japan Telecom Co., Ltd.
Super SINET
• Ultrahigh-speed network intended to develop
and promote Japanese academic
researchers by strengthening collaboration
among leading research institutes.
• Operated by The National Institute
Informatics (NII) which is an independent
administrative corporation.
• Besides the academic network, there is the
research project studying the next generation
optical networks.
Super SINET composition figure
Research project
• Focus on optical technologies
– Physical layer
• 40G bit/s transmission
• Dispersion compensation
• Optical regeneration
– Control plane
• GMPLS interoperability
• GMPLS LSP recovery
Testbed
•
•
•
•
•
Cisco 12400 series routers
Calient 3D-MEMS-based PXCs
Mitsubishi bascule-type PXC
NEC DWDM systems
30-km-long Installed fiber
Photograph of testbed
DWDM
(NEC SpectralWave,
backside of these machenes)
3D-MEMS PXCs
(Calient DiamondWave)
Bascule type PXC
(Mitsubishi PXC)
Routers
(Cisco 12400)
Control Plane
(Ethernet Hub)
Bascule type optical switch
Reflection
Transmission
Spring
Air gap
Ball
Polymer
waveguide film
Pin
•16x16 switching matrix
•0.3 ms switching speed
光出力
Fiber
Output2
Input2
Output1
Input1
Polymer waveguide film
Optical power
[arbitrary unit]
Piezo
actuator
0
2
4
6
8
10 12 14 16 18 20
Time [ms]
What we have achieved
• All-optical end-to-end path rerouting
• PXC, WDM, and IP router integration
• Full set of generalized multi-protocol label
switching (GMPLS) protocol suite
– RSVP-TE, OSPF-TE, LMP and LMP-WDM
• Two types of PXCs
– 3D-MEMS, bascule type optical switch
• Installed cable as one of data links
• Four vendor interoperability
WDM_B
Test configuration
Site B
PXC_A, PXC_B: Calient Diamondwave
PXC_C: Mitsubishi PXC
Router_A, Router_B: Cisco GSR 12400
WDM_A, WDM_B: NEC SpectralWave
Installed cable (30km)
Control plane network (Fast Ethernet)
Data plane network (OC-48 POS, 1310nm)
Site A
WDM_A
variable attenuator
3D-MEMS
Router_A
PXC_A
PXC_B
Router_B
99:1 coupler
Optical power monitor
Control plane network
PXC_C
Bascule optical switch
WDM_B
Path setup
Site B
Site A
WDM_A
Router_A
variable attenuator
PXC_A
PXC_B
PXC_C
Signaling for setup (RSVP-TE)
Router_B
WDM_B
Fault detection, localization
Site B
Site A
WDM_A
variable attenuator
PXC_A
Router_A
PXC_B
PXC_C
Path error
(RSVP-TE)
Link error
(LMP-WDM)
Link error
(LMP-WDM)
Signaling for deletion (RSVP-TE)
Router_B
WDM_B
Find alternative route, restoration
Site A
Site B
×
Topology
discovery
WDM_A
variable attenuator
Find alternative
route
Router_A
PXC_A
PXC_B
PXC_C
Signaling for setup (RSVP-TE)
Router_B
Message sequence
Router_A
PXC_A
WDM
PXC_C
PXC_B
Router_B
Time [ms]
ChannelStatus: SF
0
ChannelStatus: SF
39
PathError
79
PathTear
3675
3782
Path
PathTear
Probably be able to shorten by router
software improvement
Path
4158
4187
PathTear
Path
Pre resource allocation (i.e.
protection) may improve this
Resv
Fault localization
Resv
Resv
Path deletion
Topology
discovery,
Rerouting
calculation
Path
Resv
Alternative LSP
setup
Measured optical power during restoration process
(three PXCs test)
Optical power [dBm]
-30
-35
-40
-45
-50
-55
0
1
2
3
4
5
6
7
Time [sec]
8
9
10
11
12
Conclusion
• Interoperability of PXCs, WDMs and IP
routers has been successfully demonstrated
using an installed fiber.
– Two types of PXCs; bascule type optical switch,
3D-MEMS
• Four major GMPLS protocols have been
interoperated.
– RSVP-TE, OSPF-TE, LMP, and LMP-WDM
• Successful rerouting of all-optical path has
been performed by the signaling via out-ofband control plane network.
Backup slides
WDM_B
Network configuration
(two PXCs test)
Site B
PXC_A, PXC_B: Calient Diamondwave
Router_A, Router_B: Cisco GSR 12400
WDM_A, WDM_B: NEC SpectralWave
Installed cable (30km)
Control plane network (Fast Ethernet)
Data plane network (OC-48 POS, 1310nm)
Site A
WDM_A
variable attenuator
3D-MEMS
Router_A
PXC_A
99:1 coupler
Optical power monitor
Control plane network (Ethernet LAN)
PXC_B
Router_B
WDM_B
Restoration procedure
- Path setup Site B
Site A
WDM_A
Router_A
(Initiator)
variable attenuator
PXC_A
Signaling for setup (RSVP-TE)
PXC_B
Router_B
(Terminator)
WDM_B
Restoration procedure
- Fault detection, localization Site B
Site A
WDM_A
Router_A
(Initiator)
variable attenuator
PXC_A
Path error
(RSVP-TE)
Link error
(LMP-WDM)
PXC_B
Link error
(LMP-WDM)
Signaling for deletion (RSVP-TE)
Router_B
(Terminator)
WDM_B
Restoration procedure
- Find alternative route, restoration -
Site A
Site B
×
Topology discovery
(OSPF-TE)
WDM_A
variable attenuator
Find alternative
route
Router_A
(Initiator)
PXC_A
Signaling for setup (RSVP-TE)
PXC_B
Router_B
(Terminator)
Message sequence
(two PXCs test)
Router_A
(Initiator)
PXC_A
Time[ms]
1350
2072
PathError
PathError
PathTear
PathTear
Path
Resv
ResvTear
PathTear
3045
6775
Fault localization
PathTear
ProbablyPath
be able to shorten by
Path
router software improvement
Resv
Resv
ResvTear
PathTear
ResvTear
PathTear
ChannelStatus: SD
Pre
resource allocation (i.e.
ChannelStatus: SF
protection) may improve this
4573
6354
PXC_B
ChannelStatus: SF
0
49
WDM
Router_B
(Terminator)
Path
Resv
Path
Resv
Path
Resv
Path deletion
Topology
discovery
Rerouting
calculation
Alternative
path setup
Measured optical power during restoration process
(two PXCs test)
Optical power [dBm]
-30
-35
-40
-45
-50
-55
0
1
2
3
4
5
6
7
Time [sec]
8
9
10 11 12