def target_power(dp_from_gain, network, node, equipment): #get_fiber_dp
SPAN_LOSS_REF = 20
POWER_SLOPE = 0.3
power_mode = equipment['Spans']['default'].power_mode
dp_range = list(equipment['Spans']['default'].delta_power_range_db)
node_loss = span_loss(network, node)
dp_gain_mode = 0
try:
dp_power_mode = round2float((node_loss - SPAN_LOSS_REF) * POWER_SLOPE,
dp_range[2])
dp_power_mode = max(dp_range[0], dp_power_mode)
dp_power_mode = min(dp_range[1], dp_power_mode)
except KeyError:
print(f'invalid delta_power_range_db definition in eqpt_config[Spans]'
f'delta_power_range_db: [lower_bound, upper_bound, step]')
exit()
if dp_from_gain:
dp_power_mode = dp_from_gain
dp_gain_mode = dp_from_gain
if isinstance(node, Roadm):
dp_power_mode = 0
dp = dp_power_mode if power_mode else dp_gain_mode
#print(f'{repr(node)} delta power in:\n{dp}dB')
return dp
def set_amplifier_voa(amp, power_target, power_mode):
VOA_MARGIN = 1 # do not maximize the VOA optimization
if amp.out_voa is None:
if power_mode and amp.params.out_voa_auto:
voa = min(amp.params.p_max - power_target,
amp.params.gain_flatmax - amp.effective_gain)
voa = max(round2float(voa, 0.5) - VOA_MARGIN, 0)
amp.delta_p = amp.delta_p + voa
amp.effective_gain = amp.effective_gain + voa
else:
voa = 0 # no output voa optimization in gain mode
amp.out_voa = voa
def set_amplifier_voa(amp, pref_total_db, power_mode):
VOA_MARGIN = 0
if amp.operational.out_voa is None:
if power_mode:
gain_target = amp.operational.gain_target
pout = pref_total_db + amp.dp_db
voa = min(amp.params.p_max - pout,
amp.params.gain_flatmax - amp.operational.gain_target)
voa = round2float(max(
voa, 0), 0.5) - VOA_MARGIN if amp.params.out_voa_auto else 0
amp.dp_db = amp.dp_db + voa
amp.operational.gain_target = amp.operational.gain_target + voa
else:
voa = 0 # no output voa optimization in gain mode
amp.operational.out_voa = voa
def target_power(network, node, equipment): # get_fiber_dp
if isinstance(node, elements.Roadm):
return 0
SPAN_LOSS_REF = 20
POWER_SLOPE = 0.3
dp_range = list(equipment['Span']['default'].delta_power_range_db)
node_loss = span_loss(network, node)
try:
dp = round2float((node_loss - SPAN_LOSS_REF) * POWER_SLOPE, dp_range[2])
dp = max(dp_range[0], dp)
dp = min(dp_range[1], dp)
except IndexError:
raise ConfigurationError(f'invalid delta_power_range_db definition in eqpt_config[Span]'
f'delta_power_range_db: [lower_bound, upper_bound, step]')
return dp
def target_power(network, node, equipment): #get_fiber_dp
SPAN_LOSS_REF = 20
POWER_SLOPE = 0.3
power_mode = equipment['Span']['default'].power_mode
dp_range = list(equipment['Span']['default'].delta_power_range_db)
node_loss = span_loss(network, node)
try:
dp = round2float((node_loss - SPAN_LOSS_REF) * POWER_SLOPE, dp_range[2])
dp = max(dp_range[0], dp)
dp = min(dp_range[1], dp)
except KeyError:
print(f'invalid delta_power_range_db definition in eqpt_config[Span]'
f'delta_power_range_db: [lower_bound, upper_bound, step]')
exit()
if isinstance(node, Roadm):
dp = 0
return dp
