Optical engineering decision report

Connection feasibility analysis

BALI_CDM_126 → BADVEL_MTUI_148 · Requested capacity: 100 Gbit/s · Generated from anonymized demonstration data

English portfolio edition. This document presents the decision and the main supporting evidence from the original generated report in a format accessible to non-specialist readers.

Feasible

Selected route: BALI_CDM_126 → ABAY_CK_547 → ABAY_KRA_315_G → BADVEL_MTUI_148

The route has sufficient spectrum and compatible equipment. The simulated signal remains above the required quality threshold in both directions.

+13.8 dB minimum signal-quality margin

Decision at a glance

4network nodes

3optical segments

150 kmroute distance

29common free slots

PM-QPSKselected modulation

25.98 dBestimated OSNR

Four engineering checks combined

01 · ROUTE

A valid path was found

The calculated route connects the requested endpoints through four network nodes and three optical segments.

02 · CAPACITY

Continuous spectrum is available

The same optical slot is free across every segment, satisfying the continuity constraint for the new service.

03 · EQUIPMENT

Compatible hardware is available

The equipment inventory contains compatible transponders and usable line ports along the selected route.

04 · SIGNAL QUALITY

The simulated signal passes

GNPy estimates enough optical signal-to-noise margin for the selected transceiver and modulation format.

Selected route

BALI_CDM_126

ABAY_CK_547

ABAY_KRA_315_G

BADVEL_MTUI_148

Spectrum and capacity

A wavelength service must use the same slot across all three optical segments. The highlighted block represents the proposed new 50 GHz service at 191.300 THz.

Occupied spectrum Proposed service Available spectrum Guard band

Equipment availability

Inventory check	Result	Interpretation
Installed pluggables without an active optical channel	6	Available
Empty compatible line slots	2	Available
Active pluggables identified	6	Included in capacity checks
Integrated cards identified	38	Included in inventory evidence

Signal-quality simulation

Direction	Simulated OSNR	Required OSNR	Margin	Decision
BALI_CDM → BADVEL_MTUI	25.98 dB	14.2 dB	+13.8 dB	Pass
BADVEL_MTUI → BALI_CDM	26.27 dB	14.2 dB	+14.1 dB	Pass

GNPy performs the optical propagation simulation. The language model coordinates the workflow but does not invent or calculate the engineering result.

Recommended configuration

nokia_130SCUPCtransceiver

PM-QPSKmodulation format

SD-FECerror correction

50.0 GHzchannel spacing

32.32 GBdbaud rate

100 Gbit/srequested capacity