1. Multi-Layer Scenarios
Andrea Mazzini, Nokia
April 16, 2019

2. Purpose of this contribution
This contribution provides a synthesis of the various multi-layer scenarios presented in otcc2018.AM.003-Multilayer_Termination-22nov.pptx (AM, KS).
Purpose is to share and possibly consolidate how to model more common use cases / scenarios, allowing a TAPI agent to consistently represent network multi-layer forwarding capabilities.
The examples consider the transport of Ethernet/DSR services over OTN ODU/OTSi infrastructure, nevertheless the approach should be valid for other connection-oriented networking technologies.
The scenarios are based on equipment view, i.e. most of the shown nodes have a scope on a piece of eqp like Transponder and ROADM.

3. NEP Pools NEP Pools can be built according to the following criteria:
Pool of NEPs with equivalent transmission features
Further refined according to topological equivalence
UNI NEP Pools (NEP not ending link)
Single Layer
Can support SIPs for the provisioning of “CTP rate” ConnectivityServices
Supports flexibility at TTP=CTP rate
Multi-rate/layer
The terminated layers end trails towards UNI, not explicitly modeled
Internal NEP Pools (NEP not ending link)
Single Layer
Not applicable
Multi-rate/layer
Can support SIPs for the provisioning of “TTP rate” ConnectivityServices
Can support SIPs for all the terminated layers
Cannot support SIPs for the provisioning of “CTP rate” ConnectivityServices
NNI NEP Pools (NEP ending Link)
Single Layer
Cannot support SIPs
Supports flexibility at TTP=CTP rate
Multi-rate/layer
Can support SIPs for the provisioning of “TTP rate” ConnectivityServices
Can support SIPs for all the terminated layers
Cannot support SIPs for the provisioning of “CTP rate” ConnectivityServices
Transitional Link NEP Pools
The “supported flexibility” lists the rates where flexibility is supported.
Client NEP can support SIPs (related to TTPs) only if Multi-layer
Server NEP can support SIP at its base TTP, plus other SIPs (related to other TTPs) only if Multi-layer

4. NEP Attributes
NodeEdgePoint
pool: Boolean [1] (default: false)
_aggregatedNodeEdgePoint: NodeEdgePoint [*]
layerProtocolName: LayerProtocolName
NepBaseLayerProtocolQualifier: LayerProtocolQualifier [1]
Layer=ODU4 (TTP rate)
_capacity: CapacityPac [1]
Total Capacity=400G
availableCepLayerProtocol: NepLayerProtocolCapability [1..*]
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP per TTP instances=10, 10, 2
maxNepInThePool: positiveInteger [1] (default: 1)
Max # TTP instances=4
Examples
If pool = false, then
Only one NepLayerProtocolCapability instance
maxNepInThePool=1
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
Layer=DSR
Total Capacity=40G
Supported CTP Rates= 10GigE, FC-1200, 40GigE
Max # CTP instances=1,1,1
availableCepLayerProtocol: there can be cases where specifying only the “leaves” (CTP rates) may not be sufficient, e.g. when different structures can eventually support same leaves. Hence better define a “list of lists” type. E.g.
{ODU4; [ODU0; ODU1; ODU2; ODU2e; ODU3]};
{ODU4; [ODU3; (ODU0; ODU1; ODU2; ODU2e)];
[ODU2; (ODU0; ODU1)]; [ODU2; (ODU1; <ODU0>)]}
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Pool = yes
Layer=ODU2 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2
Max # TTP instances=4
Max # CTP per TTP instances=10

5. Node Rule Group Attributes
Add
supportedTransition: SupportedTransition [*]
SupportedTransition: couple of LayerProtocolQualifier
Add ”LAYER_TRANSITION”
Example
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP DSR
Server NEP ODU4
Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e),(40GigE,ODU3), (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)

6. LayerProtocolTransitionPac Attributes
Replace transitionedLayerProtocolName with
supportedTransition: SupportedTransition [1]
SupportedTransition: couple of LayerProtocolQualifier
Add
SupportedFlexibility: SupportedFlexibility [1]
SupportedFlexibility: LayerProtocolQualifier [0..2]
The listed Layer Protocol Qualifiers must be consistent with supportedTransition listed Qualifiers.
Example
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=OTSi, ODU4

7. “client” NEPs (1/2)
Multi-rate/layer NEP (Pool) supports one or more NEPs which are not “ending any node”, or better are ending the nodes which are encapsulated in the multi-rate/layer node.
Do we really need them?
In fact, the signal processing and forwarding capabilities are fully described by NEP pool or “bottom most NEP” in case of no pool.
OTSi
ODU4
ODU
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP instances=10, 10, 2 K H
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
ODU2
Link C
OTSi Connectivity Service D
ODU4 Connectivity Service
NNI
SIP for the provisioning of ODU2 ConnectivityService is not allowed in case of Link (NNI case)

8. “client” NEPs (2/2) NNI Do we really need them? Yes!
In this scenario, this link is NOT redundant
In this scenario, this link is redundant
Link
ODU2
ODU4
ODU
ODU4
ODU4
ODU
Link
ODU
OTSi
OTSi
OTSi
OTSi
Link
OTSi
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU4
Max # CTP instances=1
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP instances=10, 10, 2
OTSi
OTSi
SIP for the provisioning of ODU2 ConnectivityService is not allowed in case of Link (NNI case)
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

9. Partitioning All nodes are single layer and rate
ODU4 Node at higher partitioning level
External NEPs, which
have a SIP, and/or
end a Link
Layer A
Layer A Y X
Layer A Rate A1
Layer A Rate A1
Layer A
Rate A1
Layer A Rate A1
Link
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
Layer ODU Rate ODU4
Single layer NEP Pool, aggregates “ports” with uniform capabilities.
NodeRuleGroup
RuleType: FORWARDING
NEP list
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

10. Partitioning All nodes are single layer and rate NEP Pools and Links (1/2)
ODU4 Node at higher partitioning level
External NEPs, which
have a SIP, and/or
end a Link
Layer A
Layer A Y X
Layer A Rate A1
Layer A Rate A1
Layer A
Rate A1
Layer A Rate A1
NODE 2
Link
NODE 1
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
Layer ODU Rate ODU4
On Node 1, there is only one NEP which Link ends on a NEP of Node 2.
On Node 2, the NEP Pool is present because it aggregates NEP with equivalent transmission features. This NEP Pool does not end a Link Pool.
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

11. Partitioning All nodes are single layer and rate NEP Pools and Links (2/2)
ODU4 Node at higher partitioning level
External NEPs, which
have a SIP, and/or
end a Link
Layer A
Layer A Y X
Layer A Rate A1
Layer A Rate A1
Layer A
Rate A1
Layer A Rate A1
NODE 2
Link
NODE 1
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
Layer ODU Rate ODU4
Layer ODU Rate ODU4
Link
In this case the NEP Pool is present on both Nodes, because it aggregates NEP with equivalent transmission features plus topological equivalence. This NEP Pool ends a Link Pool.
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

12. Layering All nodes are single layer and rate, Transitional Link
External NEPs, which
have a SIP, and/or
end a Link
Layer B
Layer A Y X
Layer A Rate A1
Layer A Rate A1
Layer B
Rate B1
Layer B Rate B1
Transitional Link
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
NodeRuleGroup
RuleType: FORWARDING
NEP list
TransitionalLink
NEP client, NEP server
Supported Transitions=(A1, B1)
Supported Flexibility=A1, B1
Pool = yes
Layer=ODU2 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2
Max # TTP instances=4
Max # CTP per TTP instances=10
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

13. Layering All nodes are single layer and rate, Transitional Link
ODU2
Layer=ODU2
Total Capacity=10G
Supported CTP Rates= ODU2
Max # CTP instances=1
ODU4
Defined in an ODU2 Node at higher partitioning level
Defined in an ODU4 Node at higher partitioning level
ODU2
ODU2
ODU
ODU
ODU4
ODU4 X
Link
Layer ODU Rate ODU2
ODU
Transitional Link
Layer ODU Rate ODU2
Layer ODU
Rate ODU4
SIP for the provisioning of ODU2 ConnectivityService
SIP for the provisioning of ODU4 ConnectivityService Z
TransitionalLink
NEP client, NEP server
Supported Transitions=(ODU4, ODU2)
Supported Flexibility=ODU4, ODU2
Layer ODU
Rate ODU4

14. Layering All nodes are single layer and rate, Transitional Link
ODU2
Layer=ODU2
Total Capacity=10G
Supported CTP Rates= ODU2
Max # CTP instances=1
Defined in an ODU2 Node at higher partitioning level
ODU2
ODU2
ODU
ODU
ODU4
ODU4
ODU4 X
ODU
Layer ODU Rate ODU2
Transitional Link
Layer ODU Rate ODU2
Layer ODU
Rate ODU4 Y
Layer ODU
Rate ODU4
SIP for the provisioning of ODU2 ConnectivityService
SIPs for the provisioning of ODU4 ConnectivityService
SIP for the provisioning of ODU4 ConnectivityService Z
TransitionalLink
NEP client, NEP server
Supported Transitions=(ODU4, ODU2)
Supported Flexibility=ODU4, ODU2
Layer ODU
Rate ODU4

15. Layering Transitional Link ≈ Internal NEP Pool
Multi-layer node with “internal” NEP Pool modeling layer transition
Single-layer nodes with Transitional Link modeling layer transition between them
ODU2
ODU2
ODU
ODU4
ODU
ODU4
ODU
Transitional Link
Layer ODU Rate ODU2
Layer ODU
Rate ODU4
ODU
If NEP Pool is “Multi-layer”, it can support SIPs related to TTPs
Layer ODU
Rate ODU4
If NEP Pool is “Multi-layer”, it can support SIPs related to TTPs Z Z
Layer ODU
Rate ODU4
SIP for the provisioning of ODU4 ConnectivityService
TransitionalLink
NEP client, NEP server
Supported Transitions=(ODU4, ODU2)
Supported Flexibility=ODU4, ODU2
SIP for the provisioning of ODU4 ConnectivityService
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

16. Multi-rate, Multi-layer Nodes, Single-layer flexibility
External NEPs, which
have a SIP, and/or
end a Link
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
Layer B
Layer A Y X
Layer A Rate A1
Layer A Rate A2
Layer A
Rate A2
Layer=ODU2
Total Capacity=10G
Supported CTP Rates= ODU2
Max # CTP instances=1
Layer B Rate B1
Link
Link
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU2
Server NEP ODU4
Supported Transitions=(ODU4,ODU2)
Layer ODU Rate ODU4
Layer ODU Rate ODU4
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
Multi-layer/rate NEP Pool, aggregates “ports” with uniform capabilities.
Single-layer/rate NEP Pool, aggregates “ports” with uniform capabilities.

17. Multi-rate, Multi-layer Nodes, Single-layer flexibility
ODU2
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
ODU4
Layer B
Layer A Y
ODU2 X
ODU
Layer A Rate A1
ODU4
Layer B Rate B1
Layer=ODU2
Total Capacity=10G
Supported CTP Rates= ODU2
Max # CTP instances=1
Link
Link
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
Layer ODU Rate ODU4
Layer ODU Rate ODU4
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU2
Server NEP ODU4
Supported Transitions=(ODU4,ODU2)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
SIP for the provisioning of ODU4 ConnectivityService Z
Layer ODU
Rate ODU4

18. Multi-rate, Multi-layer Nodes, Single-layer flexibility
SIP for the provisioning of OTSi ConnectivityService, not allowed in case of no Link (UNI case)
ODU2
ODU4
Layer A
ODU2
ODU4
ODU4
OTSi X
ODU
OTSi
ODU Y
Layer A Rate A1
ODU4
OTSi
Layer=ODU2
Total Capacity=10G
Supported CTP Rates= ODU2
Max # CTP instances=1
Link
Link
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
Layer ODU Rate ODU4
Layer ODU Rate ODU4
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU2
Server NEP ODU4
Supported Transitions=(ODU4,ODU2)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Layer=OTSi (TTP rate)
Total Capacity=100G
Supported CTP Rates= ODU4
Max # CTP instances=1
SIP for the provisioning of ODU4 ConnectivityService Z
Layer ODU
Rate ODU4

19. Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool
ODU4
ODU4
ODU
Y1, Y2 are SIPs for the provisioning of OTSi ConnectivityService, not terminated in the managed domain, as there is no further Link (UNI case)
OTSi
OTSi
Link
OTSi
Layer ODU Rate ODU4 Y2
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
OTSi
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
OTSi
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1 Y1
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi (int.), NEP OTSi

20. Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool
OTSi
ODU4
ODU4
ODU
OTSi
OTSi
Link
Link
Layer ODU Rate ODU4
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
OTSi
OTSi
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1 Y
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi (int.), NEP OTSi

21. Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool
ODU2
ODU4
Layer A
ODU2
ODU2 X
ODU
Layer A Rate A1
Layer=ODU2
Total Capacity=10G
Supported CTP Rates= ODU2
Max # CTP instances=1
ODU4
ODU4
Link
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU2
Server NEP ODU4
Supported Transitions=(ODU4,ODU2)
ODU (Internal)
Layer ODU Rate ODU4
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
NodeRuleGroup
RuleType: FORWARDING
NEP ODU4 (int), ODU4
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
SIP for the provisioning of ODU4 ConnectivityService Z
ODU
(Internal)

22. Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool Case ODU4 UNI NEP
Layer A
ODU X
Layer A Rate A1
ODU4
ODU4
ODU4
Link
Layer=ODU4
Total Capacity=100G
Supported CTP Rates= ODU2
Max # CTP instances=10
Node
NodeEdgePoint
Device
ConnectivityServiceEndPoint X
ServiceInterfacePoint
ConnectivityService
Connection
Link
Transitional Link
ConnectionEndPoint A
CTP and CTP
CTP and TTP
TTP
CTP
ODU (Internal)
Layer ODU Rate ODU4
NodeRuleGroup
RuleType: FORWARDING
NEP ODU4 (int), ODU4
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
NodeRuleGroup
RuleType: FORWARDING
NEP ODU4 (int), ODU4
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
SIP for the provisioning of ODU4 ConnectivityService Z
ODU
(Internal)

23. SIP at UNI, UNI Single-layer NEP Pool, Ethernet
ETH 10G Connectivity Service
ETH 10G B
ETH 10G
ETH
ETH CTP
ETH CTP Y
ETH
Layer=ETH
Total Capacity=40G
Supported CTP Rates= 10G
Max # CTP instances=4
Pool = yes
Layer=ETH
Total Capacity=400G
Supported CTP Rates= ETH
Max # TTP instances=10
Max # CTP per TTP instances=4

24. ODU1 Connectivity Service
SIP at UNI, UNI Single-layer NEP Pool, ODU1
UNI
ODU1 Connectivity Service
ODU1 C
ODU1 K
ODU
ODU1
ODU1
Layer=ODU
Total Capacity=2.5G
Supported CTP Rates= ODU1
Max # CTP instances=1
Pool = yes
Layer=ODU1 (TTP rate)
Total Capacity=25G
Supported CTP Rates= ODU1
Max # TTP instances=10
Max # CTP per TTP instances=1

25. SIP at UNI, UNI Multi-layer NEP Pool
ODU4 Connectivity Service D
ODU4
ODU4 H
ODU
ODU
OTSi
OTSi
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU4
Max # CTP instances=1
SIP for the provisioning of OTSi ConnectivityService is not allowed in case of no Link (UNI case)
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

26. SIP at UNI, UNI Multi-layer NEP Pool
ODU2 Connectivity Service
UNI E
ODU2
ODU2 J
ODU
ODU4 J1
ODU
J1, J2, J3, J4 SIPs can be optionally shown in case it is offered also the capability to select exact NEP.
OTSi
OTSi
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP instances=10, 10, 2
SIP for the provisioning of OTSi/ODU4 ConnectivityService is not allowed in case of no Link (UNI case)
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

27. ODU1 Connectivity Service
SIP at NNI, NNI Single-layer NEP Pool
Not applicable
The ODU connection cannot end at NNI side
ODU1 Connectivity Service
NNI C
ODU1
ODU1
ODU1
ODU K
ODU1
Link
Layer=ODU
Total Capacity=2.5G
Supported CTP Rates= ODU1
Max # CTP instances=1
Pool = yes
Layer=ODU1 (TTP rate)
Total Capacity=25G
Supported CTP Rates= ODU1
Max # TTP instances=10
Max # CTP per TTP instances=1

28. SIP at NNI, NNI Multi-layer NEP Pool
OTSi Connectivity Service C
OTSi
ODU4
ODU K
OTSi
OTSi
Link
OTSi
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU4
Max # CTP instances=1
OTSi
SIP for the provisioning of ODU4 ConnectivityService is not allowed in case of Link (NNI case)
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

29. SIP at NNI, NNI Multi-layer NEP Pool
ODU4
ODU2
ODU4 Connectivity Service
ODU
OTSi D
ODU4 H
ODU
ODU
OTSi Connectivity Service C
OTSi
OTSi K
OTSi
Link
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP instances=10, 10, 2
OTSi
SIP for the provisioning of ODU2 ConnectivityService is not allowed in case of Link (NNI case)
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

30. Internal Multi-layer NEP Pool
ODU4
ODU2
ODU4 Connectivity Service D H
ODU
ODU4
OTSi
ODU
OTSi
OTSi Connectivity Service C
OTSi K
OTSi
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP instances=10, 10, 2
OTSi
Can be related to a same layer NEP (forwarding rule)
Available flexibility at most server layer
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Available flexibility at most client layer
Can be related to a client layer NEP (layer transition rule)

31. Internal Multi-layer NEP Pool
ETH
ETH
ETH
ETH
ODU1
ODU
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ETH
Server NEP ODU2
Supported Transitions= (ODU2,ODU1),(ODU1,ETH)
ODU2
ODU2
ODU2
ODU4
ODU
ODU2
Pool = yes
Layer=ODU2 (TTP rate)
Total Capacity=100G
Supported CTP Rates= ETH
Max # TTP instances=10
Max # CTP per TTP instances=4
OTSi
OTSi
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # CTP instances=10, 10, 2
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU2
Server NEP OTSi
Supported Transitions=(OTSi,ODU4),(ODU4,ODU2) OR
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi (int), ODU2 (int.)

32. Internal Multi-layer NEP Pool  Transitional Link (1/5)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
ODU
OTSi
Transitional Link
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
OTSi
OTSi
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=OTSi,ODU4
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1

33. Internal Multi-layer NEP Pool  Transitional Link (2/5)
ODU2
ODU2
ODU
ODU4
ODU
ODU4
ODU4
ODU4
ODU
ODU
ODU
OTSi
ODU
ODU
OTSi
OTSi
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
ODU
OTSi
OTSi
OTSi
Transitional Link
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
OTSi
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=OTSi,ODU4
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

34. Internal Multi-layer NEP Pool  Transitional Link (3/5)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
OTSi
Transitional Link
OTSi
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

35. Internal Multi-layer NEP Pool  Transitional Link (4/5)
ODU2
OTSi
ODU4
ODU
ODU2
ODU
ODU4
ODU
ODU
OTSi
ODU
OTSi
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
OTSi
OTSi
Transitional Link
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

36. Internal Multi-layer NEP Pool  Transitional Link (5/5)
ODU2
ODU2
ODU
ODU4
ODU
In this case the NEP Pool is not internal NEP, rather is a NNI NEP.
ODU4
ODU
ODU
ODU
ODU
OTSi
OTSi
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
OTSi
OTSi
OTSi
Transitional Link
OTSi
OTSi
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=no
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2

37. Some detailed examples

38. 1) From 40G DSR to ODU4 to OTSi to OMS No Transitional Links
Max of 8x40GigE Services
40GigE
40GigE
DSR
DSR
Transponder / ODU & OTSi switch Node
Fixed/No flexibility
DSR&ODU2/3
ODU3
ODU3
ODU
Fixed/No flexibility
OTSi&ODU4
Layer=DSR
Total Capacity=40G
Supported CTP Rates= 10GigE, FC-1200, 40GigE
Max # CTP instances=1,1,1
ODU4
ODU4
ODU
ROADM
Node
Fixed/No flexibility
OMS & OTSiMC
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP DSR
Server NEP ODU4
Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)
ODU
OTSiG-O
OTSiA
OTSiMC
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
OTSi
1:1
OTSiA
OTSiMC
OTSi
OTSi Link
OTSiMC
OTSiMC
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU4
Max # CTP instances=1
OMS-O
OTSiMC 1
OMS Link
OMS
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
Pool = yes
Layer=OTSiMC (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSiMC
Max # TTP instances=4
Max # CTP per TTP instances=1
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
Each NEP Pool has a SIP, hence
ODU4 ConnectivityService,
OTSi ConnectivityService,
OTSiMC ConnectivityService
can be provisioned.
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP OTSiMC
Server NEP OMS
Supported Transitions=(OMS OTSiMC)
Layer=OMS
Total Capacity=4000G
Supported CTP Rates= OTSiMC
Max # CTP instances=40

39. Transponder / ODU & OTSi switch Node
2) From 40G DSR to ODU4 to OTSi to OMS No Transitional Links OTSi flexibility also on transponder side
40GigE
40GigE
Fixed/No flexibility
DSR&ODU2/3
Transponder / ODU & OTSi switch Node
DSR
DSR
ODU3
ODU3
ODU
ODU4
ODU4
Layer=DSR
Total Capacity=40G
Supported CTP Rates= 10GigE, FC-1200, 40GigE
Max # CTP instances=1,1,1
ODU
OTSiG-O
OTSiA
ROADM
Node
Fixed/No flexibility
OMS & OTSiMC
ODU
1:1
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP DSR
Server NEP ODU4
Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)
OTSiA
OTSiMC
OMS 1
OMS-O
OTSiMC
OTS
OTSi
OTSi
OTSi Link
OTSiMC
OTSi
OTSiMC
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
Pool = yes
Layer=OTSiMC (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSiMC
Max # TTP instances=4
Max # CTP per TTP instances=1
OTS Link
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi, NEP OTSi
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP OTSiMC
Server NEP OMS
Supported Transitions=(OTS,OMS),(OMS,OTSiMC)
Layer=OTS
Total Capacity=4000G
Supported CTP Rates= OTSiMC
Max # CTP instances=40

40. 3) From 2.5G ETH to ODU1 to ODU2 to ODU4 to OTSi to OMS No Transitional Links
Ethernet Bridge and ODU switch Node
Max of 10x2.5G Services
Cannot be ODU2e, ODU3, because in this example there is ODU1/0 step
ETH
ETH
ETH
ETH
ODU1
ODU1
ODU1
Layer=ETH
Total Capacity=2.5G
Supported CTP Rates= 1G to 2.5G
Max # CTP instances=1
ODU Link
ODU
Transponder / ODU & OTSi switch Node
ODU2
ODU2
ODU
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ETH
Server NEP ODU1
Supported Transitions=(ETH,ODU1)
ODU
Pool = yes
Layer=ODU1 (TTP rate)
Total Capacity=25G
Supported CTP Rates= ODU1
Max # TTP instances=10
Max # CTP per TTP instances=1
ODU4
ODU4
ODU
ODU
OTSiG-O
Pool = yes
Layer=ODU1 (TTP rate)
Total Capacity=25G
Supported CTP Rates= ETH
Max # TTP instances=10
Max # CTP per TTP instances=1
OTSiA
OTSi
ODU
Pool = yes
Layer=ODU2 (TTP rate)
Total Capacity=30G
Supported CTP Rates= ODU0, ODU1
Max # TTP instances=3
Max # CTP per TTP instances=8, 4
OTSiA
1:1
OTSi
OTSi Link
OTSi
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU1
Server NEP ODU2
Supported Transitions=(ODU2,ODU1)
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= ODU4
Max # CTP instances=1
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU2
Server NEP ODU4
Supported Transitions= (ODU4,ODU2)
Each NEP Pool has a SIP, hence
ODU1 ConnectivityService,
ODU2 ConnectivityService,
ODU4 ConnectivityService,
OTSi ConnectivityService
can be provisioned.
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP ODU4
Server NEP OTSi
Supported Transitions=(OTSi,ODU4)
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU4
Max # TTP instances=4
Max # CTP per TTP instances=1

41. 4) DSR/ODU Node OTSi Node Photonic Node OTSi CS ODU4 CS DSR CS
Fixed/No flexibility
DSR&ODU2/3
Transponder / ODU switch Node
Transponder / OTSi switch Node
ODU3
40GigE
40GigE
ODU
DSR
DSR
ODU4
ODU4
ODU3
ROADM
Node
ODU
OTSi
OTSiMC
Layer=DSR
Total Capacity=40G
Supported CTP Rates= 10GigE, FC-1200, 40GigE
Max # CTP instances=1,1,1
OTSi
OTSiMC
OTSi Link
OTSi
OTSiMC
OTSi
OTSiMC
ODU
Transitional Link
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP DSR
Server NEP ODU4
Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)
OMS-O
OTSi 1
OMS Link
OMS
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
Layer=OTSiMC
Total Capacity=100G
Supported CTP Rates= OTSiMC
Max # CTP instances=1
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Layer=OMS
Total Capacity=400G
Supported CTP Rates= OTSiMC
Max # CTP instances=4
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi, NEP OTSi
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP OTSiMC
Server NEP OMS
Supported Transitions=(OMS, OTSiMC)
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=OTSi, ODU4

42. 5) DSR/ODU Node OTSi Node Photonic Node OTSi CS ODU4 CS DSR CS
Fixed/No flexibility
DSR&ODU2/3
Transponder / ODU switch Node
Transponder / OTSi switch Node
ODU3
40GigE
40GigE
ODU
DSR
DSR
ODU4
ODU4
ODU3
ROADM
Node
ODU
OTSiMC
Layer=DSR
Total Capacity=40G
Supported CTP Rates= 10GigE, FC-1200, 40GigE
Max # CTP instances=1,1,1
OTSi
OTSiMC
OTSi Link
OTSi
OTSiMC
OTSi
OTSiMC
ODU
Transitional Link
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP DSR
Server NEP ODU4
Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)
OMS-O
OTSi 1
OMS Link
OMS
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
Layer=OTSiMC
Total Capacity=100G
Supported CTP Rates= OTSiMC
Max # CTP instances=1
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Layer=OMS
Total Capacity=400G
Supported CTP Rates= OTSiMC
Max # CTP instances=4
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi, NEP OTSi
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP OTSiMC
Server NEP OMS
Supported Transitions=(OMS, OTSiMC)
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=ODU4

43. 6) DSR/ODU Node OTSi Node Photonic Node OTSi CS ODU4 CS DSR CS
Fixed/No flexibility
DSR&ODU2/3
Transponder / ODU switch Node
Transponder / OTSi switch Node
ODU3
40GigE
40GigE
ODU
DSR
DSR
ODU4
ODU3
ROADM
Node
ODU
OTSiMC
Layer=DSR
Total Capacity=40G
Supported CTP Rates= 10GigE, FC-1200, 40GigE
Max # CTP instances=1,1,1
OTSi
OTSiMC
OTSi Link
OTSi
OTSiMC
OTSi
OTSiMC
ODU
Transitional Link
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP DSR
Server NEP ODU4
Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)
OMS-O
OTSi 1
OMS Link
OMS
Pool = yes
Layer=OTSi (TTP rate)
Total Capacity=400G
Supported CTP Rates= OTSi
Max # TTP instances=4
Max # CTP per TTP instances=1
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
Layer=OTSiMC
Total Capacity=100G
Supported CTP Rates= OTSiMC
Max # CTP instances=1
Layer=OTSi
Total Capacity=100G
Supported CTP Rates= OTSi
Max # CTP instances=1
Pool = yes
Layer=ODU4 (TTP rate)
Total Capacity=400G
Supported CTP Rates= ODU2, ODU2e, ODU3
Max # TTP instances=4
Max # CTP per TTP instances=10, 10, 2
Layer=OMS
Total Capacity=400G
Supported CTP Rates= OTSiMC
Max # CTP instances=4
NodeRuleGroup
RuleType: FORWARDING
NEP OTSi, NEP OTSi
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP OTSi
Server NEP OMS
Supported Transitions=(OMS, OTSi)
NodeRuleGroup
RuleType: LAYER_TRANSITION
Client NEP OTSiMC
Server NEP OMS
Supported Transitions=(OMS, OTSiMC)
TransitionalLink
NEP ODU, OTSi
Supported Transitions=(OTSi,ODU4)
Supported Flexibility=no