Escalation : Bottom-up Strategy and Top-Down

Packet Layer

Lambda Layer

Fiber Layer

PSC Interface

LSC Interface

Physical Interface

GMPLS Signalling

GMPLS Signalling

Physical Mechanism

Packet Layer

Lambda Layer

Fiber Layer

PSC Interface

LSC Interface

Physical Interface

GMPLS Signalling

GMPLS Signalling

Physical Mechanism

Trigger

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