Global Picture (ITU & OIF View)

User Admin

Domain

User Admin

Domain

Provider C

Admin Domain

UNI

Control Domain C

Multi-vendor Agreement

I-NNI

Control Domain A

(e.g., vendor 1, metro)

I-NNI

E-NNI

Control Domain B

(e.g., vendor 2, core)

Single Carrier 1 - Single Administrative Domain

E-NNI

E-NNI

User Admin

Domain

GMPLS Protocol suite with interface specific extensions applied at UNI and E-NNI (intra-/inter- carrier) interfaces

I-NNI

UNI

E-NNI

E-NNI

Single Carrier 3 - Single Administrative Domain

E-NNI

Single Carrier 2 - Single Administrative Domain

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