Power Checking on Different Devices

Sometimes we need to check the power of the different networking devices. And different devices have its own commands to know the ports' power.

Typical TX RX Optical Power Range

Parameter	10GBASE-LR	10GBASE-ER	10GBASE-ZR
Transmit Power (max)	−1.0 dBm	2.0 dBm	4.0 dBm
Transmit Power (min)	−6.0 dBm	−1.0 dBm	0.0 dBm
Receive power (max)	0.5 dBm	−1.0 dBm	−7.0 dBm
Receive power (min)	−11.0 dBm	−14.0 dBm	−24.0 dBm
Distance	10km	40km	80km
TX/RX Wavelenght	1290-1330nm	1530-1565nm	1530-1565nm

Note: ++ high-alarm; + high-warning; — low-alarm; – low-warning

Power Checking on Cisco

IOS / IOS-XE
IOS-router#show hw-module subslot 0/2 transceiver 2 status

IOS-XR (CRS)
RP/0/RP1/CPU0: Router#show controllers Te0/0/0/1 phy

Note you can do filtering like “ | include dB“

IOS-XR (ASR9K) (10GE)
RP/0/RSP0/CPU0: Router#show controllers Te0/3/0/1 phy

IOS-XR (ASR9K) (100GE)
RP/0/RSP0/CPU0: Router#show controllers Hu0/2/0/1 phy

CISCO NEXUS OS
N7K-SWITCH Router# show interface Eth1/1 transceiver details

Checking TX / RX optical power in Juniper (JunOS)

Checking Chassis Power

user@host> show chassis power

user@host> show chassis power detail 

user@host > show chassis power sequence

Checking interfaces diagnostics optics

For 10GE interface:

#show interfaces diagnostics optics <interface-name>

user@host> show interfaces diagnostics optics xe-3/0/1

For 100GE interface:

#show interfaces diagnostics optics <interface-name> | match <pattern>

user@host> show interfaces diagnostics optics et-0/0/0 | match power

Checking the Power Supply Status

user@host> show chassis environment

user@host> show chassis environment pem

Checking power for Huawei Switches and Routers

Checking the Device Power Consumption

<Huawei>display device power system

<Huawei>display interface GigabitEthernet1/1/1 extensive

Or use filter:

<Huawei>display interface GigabitEthernet1/1/1 | i Power

For other Huawei like those S series Campus switches

<Huawei>display transceiver interface GigabitEthernet1/1/1  verbose

For CloudEngine or Series Switches

<Huawei>display interface 10ge GigabitEthernet1/1/1  transceiver verbose

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