def requests_from_json(json_data, equipment):
requests_list = []
for req in json_data['path-request']:
#print(f'{req}')
params = {}
params['request_id'] = req['request-id']
params['source'] = req['src-tp-id']
params['destination'] = req['dst-tp-id']
params['trx_type'] = req['path-constraints']['te-bandwidth'][
'trx_type']
params['trx_mode'] = req['path-constraints']['te-bandwidth'][
'trx_mode']
params['format'] = params['trx_mode']
nd_list = req['optimizations']['explicit-route-include-objects']
params['nodes_list'] = [
n['unnumbered-hop']['node-id'] for n in nd_list
]
params['loose_list'] = [
n['unnumbered-hop']['hop-type'] for n in nd_list
]
params['spacing'] = req['path-constraints']['te-bandwidth']['spacing']
trx_params = trx_mode_params(equipment, params['trx_type'],
params['trx_mode'], True)
params.update(trx_params)
params['power'] = req['path-constraints']['te-bandwidth'][
'output-power']
params['nb_channel'] = req['path-constraints']['te-bandwidth'][
'max-nb-of-channel']
requests_list.append(Path_request(**params))
return requests_list
def requests_from_json(json_data, equipment):
requests_list = []
for req in json_data['path-request']:
# init all params from request
params = {}
params['request_id'] = req['request-id']
params['source'] = req['src-tp-id']
params['destination'] = req['dst-tp-id']
params['trx_type'] = req['path-constraints']['te-bandwidth'][
'trx_type']
params['trx_mode'] = req['path-constraints']['te-bandwidth'][
'trx_mode']
params['format'] = params['trx_mode']
nd_list = req['optimizations']['explicit-route-include-objects']
params['nodes_list'] = [
n['unnumbered-hop']['node-id'] for n in nd_list
]
params['loose_list'] = [
n['unnumbered-hop']['hop-type'] for n in nd_list
]
params['spacing'] = req['path-constraints']['te-bandwidth']['spacing']
# recover trx physical param (baudrate, ...) from type and mode
# in trx_mode_params optical power is read from equipment['SI']['default'] and
# nb_channel is computed based on min max frequency and spacing
trx_params = trx_mode_params(equipment, params['trx_type'],
params['trx_mode'], True)
params.update(trx_params)
# print(trx_params['min_spacing'])
# optical power might be set differently in the request. if it is indicated then the
# params['power'] is updated
if req['path-constraints']['te-bandwidth']['output-power']:
params['power'] = req['path-constraints']['te-bandwidth'][
'output-power']
# same process for nb-channel
f_min = params['f_min']
f_max_from_si = params['f_max']
if req['path-constraints']['te-bandwidth'][
'max-nb-of-channel'] is not None:
nch = req['path-constraints']['te-bandwidth']['max-nb-of-channel']
params['nb_channel'] = nch
spacing = params['spacing']
params['f_max'] = f_min + nch * spacing
else:
params['nb_channel'] = automatic_nch(f_min, f_max_from_si,
params['spacing'])
consistency_check(params, f_max_from_si)
try:
params['path_bandwidth'] = req['path-constraints']['te-bandwidth'][
'path_bandwidth']
except KeyError:
pass
requests_list.append(Path_request(**params))
return requests_list
params = {}
params['request_id'] = 0
params['trx_type'] = ''
params['trx_mode'] = ''
params['source'] = source.uid
params['destination'] = destination.uid
params['nodes_list'] = [destination.uid]
params['loose_list'] = ['strict']
params['format'] = ''
params['path_bandwidth'] = 0
trx_params = trx_mode_params(equipment)
if args.power:
trx_params['power'] = db2lin(float(args.power))*1e-3
params.update(trx_params)
req = Path_request(**params)
path, infos = main(network, equipment, source, destination, sim_params, req)
save_network(args.filename, network)
if args.show_channels:
print('\nThe total SNR per channel at the end of the line is:')
print('{:>5}{:>26}{:>26}{:>28}{:>28}{:>28}' \
.format('Ch. #', 'Channel frequency (THz)', 'Channel power (dBm)', 'OSNR ASE (signal bw, dB)', 'SNR NLI (signal bw, dB)', 'SNR total (signal bw, dB)'))
for final_carrier, ch_osnr, ch_snr_nl, ch_snr in zip(infos[path[-1]][1].carriers, path[-1].osnr_ase, path[-1].osnr_nli, path[-1].snr):
ch_freq = final_carrier.frequency * 1e-12
ch_power = lin2db(final_carrier.power.signal*1e3)
print('{:5}{:26.2f}{:26.2f}{:28.2f}{:28.2f}{:28.2f}' \
.format(final_carrier.channel_number, round(ch_freq, 2), round(ch_power, 2), round(ch_osnr, 2), round(ch_snr_nl, 2), round(ch_snr, 2)))
if not args.source:
print(f'\n(No source node specified: picked {source.uid})')