Cloud Managed Networks

Hi team,

I hope I can get proper help since I wasn't able to get it from the TAC the first time, this is the second time that it's happening after replacing a Switch.

I have 2 Aruba switches 2530 managed in cloud central. Some of the ports are not delivering power to poe devices such as IAP or Voip phones but they do pass data traffic when an end point is connected such as laptop or copier (that don't require power).

In Central, it shows the power being delivered is not even a quarter or the amount that can be handle 300W + and no alerts about ports issues as well. I even tried to change the setting for the designated port as poe "critical" and "high", yet the phone is not getting power.

I tested the phone to another port within the same switch and it's getting power. I'm not so sure whether the building as some power issues that damaged the ports, but this is the second time that I've replaced it.

The first time, when I called the TAC they weren't able to help so they quickly send me a replacement. Now that it happened again, it's imperative that I need to find out

1)  If the port is really damaged (burnt/shock).

2) if a notification can be triggered.

3) what it's causing (up to me and facility department if it's an electrical issue).

4) Diagnostc tool (cli commands/power self check) to come conclusion.

Thank you airheads community.

so does the PoE ports works and then after a while it doesn't? there should be some sort of log generated for it. "show log -r" should provide some indication.

Hi team,

I hope I can get proper help since I wasn't able to get it from the TAC the first time, this is the second time that it's happening after replacing a Switch.

I have 2 Aruba switches 2530 managed in cloud central. Some of the ports are not delivering power to poe devices such as IAP or Voip phones but they do pass data traffic when an end point is connected such as laptop or copier (that don't require power).

In Central, it shows the power being delivered is not even a quarter or the amount that can be handle 300W + and no alerts about ports issues as well. I even tried to change the setting for the designated port as poe "critical" and "high", yet the phone is not getting power.

I tested the phone to another port within the same switch and it's getting power. I'm not so sure whether the building as some power issues that damaged the ports, but this is the second time that I've replaced it.

The first time, when I called the TAC they weren't able to help so they quickly send me a replacement. Now that it happened again, it's imperative that I need to find out

1)  If the port is really damaged (burnt/shock).

2) if a notification can be triggered.

3) what it's causing (up to me and facility department if it's an electrical issue).

4) Diagnostc tool (cli commands/power self check) to come conclusion.

Thank you airheads community.

Hi Ariyap,

the poe used to work and now it doesn't any longer, but it's available to pass data. I was able to test it by connecting my laptop to a specific port.

Is there a way I can just show logs for a specific port?

The command you shared might be to general to narrow down the source.

Thank you,

so does the PoE ports works and then after a while it doesn't? there should be some sort of log generated for it. "show log -r" should provide some indication.

Hi team,

I hope I can get proper help since I wasn't able to get it from the TAC the first time, this is the second time that it's happening after replacing a Switch.

I have 2 Aruba switches 2530 managed in cloud central. Some of the ports are not delivering power to poe devices such as IAP or Voip phones but they do pass data traffic when an end point is connected such as laptop or copier (that don't require power).

In Central, it shows the power being delivered is not even a quarter or the amount that can be handle 300W + and no alerts about ports issues as well. I even tried to change the setting for the designated port as poe "critical" and "high", yet the phone is not getting power.

I tested the phone to another port within the same switch and it's getting power. I'm not so sure whether the building as some power issues that damaged the ports, but this is the second time that I've replaced it.

The first time, when I called the TAC they weren't able to help so they quickly send me a replacement. Now that it happened again, it's imperative that I need to find out

1)  If the port is really damaged (burnt/shock).

2) if a notification can be triggered.

3) what it's causing (up to me and facility department if it's an electrical issue).

4) Diagnostc tool (cli commands/power self check) to come conclusion.

Thank you airheads community.

Have you already checked that the physical cable has the correct nomenclature? that it is not damaged?

by CLI from central you can execute 2 commands in the specific port where you have this problem, the first would be: show interface x/x/x and see that you do not have errors if you have them there is surely a problem in the wiring and the second command would be show power-over-ethernet to see how much is delivering.

Also, do you have LLDP enabled so that they can negotiate correctly the current they need?

The switch is PoE or PoE+, which AP is the one you are connected to, how much power does it need to turn on?

Hi Ariyap,

the poe used to work and now it doesn't any longer, but it's available to pass data. I was able to test it by connecting my laptop to a specific port.

Is there a way I can just show logs for a specific port?

The command you shared might be to general to narrow down the source.

Thank you,

so does the PoE ports works and then after a while it doesn't? there should be some sort of log generated for it. "show log -r" should provide some indication.

Hi team,

I hope I can get proper help since I wasn't able to get it from the TAC the first time, this is the second time that it's happening after replacing a Switch.

I have 2 Aruba switches 2530 managed in cloud central. Some of the ports are not delivering power to poe devices such as IAP or Voip phones but they do pass data traffic when an end point is connected such as laptop or copier (that don't require power).

In Central, it shows the power being delivered is not even a quarter or the amount that can be handle 300W + and no alerts about ports issues as well. I even tried to change the setting for the designated port as poe "critical" and "high", yet the phone is not getting power.

I tested the phone to another port within the same switch and it's getting power. I'm not so sure whether the building as some power issues that damaged the ports, but this is the second time that I've replaced it.

The first time, when I called the TAC they weren't able to help so they quickly send me a replacement. Now that it happened again, it's imperative that I need to find out

1)  If the port is really damaged (burnt/shock).

2) if a notification can be triggered.

3) what it's causing (up to me and facility department if it's an electrical issue).

4) Diagnostc tool (cli commands/power self check) to come conclusion.

Thank you airheads community.

Perhaps you can reach out to TAC to see if there is any HW issues.

Have you already checked that the physical cable has the correct nomenclature? that it is not damaged?

by CLI from central you can execute 2 commands in the specific port where you have this problem, the first would be: show interface x/x/x and see that you do not have errors if you have them there is surely a problem in the wiring and the second command would be show power-over-ethernet to see how much is delivering.

Also, do you have LLDP enabled so that they can negotiate correctly the current they need?

The switch is PoE or PoE+, which AP is the one you are connected to, how much power does it need to turn on?

Hi Ariyap,

the poe used to work and now it doesn't any longer, but it's available to pass data. I was able to test it by connecting my laptop to a specific port.

Is there a way I can just show logs for a specific port?

The command you shared might be to general to narrow down the source.

Thank you,

so does the PoE ports works and then after a while it doesn't? there should be some sort of log generated for it. "show log -r" should provide some indication.

Hi team,

I hope I can get proper help since I wasn't able to get it from the TAC the first time, this is the second time that it's happening after replacing a Switch.

I have 2 Aruba switches 2530 managed in cloud central. Some of the ports are not delivering power to poe devices such as IAP or Voip phones but they do pass data traffic when an end point is connected such as laptop or copier (that don't require power).

In Central, it shows the power being delivered is not even a quarter or the amount that can be handle 300W + and no alerts about ports issues as well. I even tried to change the setting for the designated port as poe "critical" and "high", yet the phone is not getting power.

I tested the phone to another port within the same switch and it's getting power. I'm not so sure whether the building as some power issues that damaged the ports, but this is the second time that I've replaced it.

The first time, when I called the TAC they weren't able to help so they quickly send me a replacement. Now that it happened again, it's imperative that I need to find out

1)  If the port is really damaged (burnt/shock).

2) if a notification can be triggered.

3) what it's causing (up to me and facility department if it's an electrical issue).

4) Diagnostc tool (cli commands/power self check) to come conclusion.

Thank you airheads community.

This is usually the symptom of failed PoE module that powers port group (assuming the client device is ok and wiring is good). We have many such cases recently. Mostly due to storms. You can check very easily with voltmeter if power is delivered on port. Just google for pin layout for PoE. You should measure >50V DC on port power wires.

You can try with "show tech all" and in some cases you can see PoE failed ports like "Port 194 (channel 1): selftest = FAILED" or something similar.

In almost all cases switch need to be replaced.

Best, Gorazd

Perhaps you can reach out to TAC to see if there is any HW issues.

Have you already checked that the physical cable has the correct nomenclature? that it is not damaged?

by CLI from central you can execute 2 commands in the specific port where you have this problem, the first would be: show interface x/x/x and see that you do not have errors if you have them there is surely a problem in the wiring and the second command would be show power-over-ethernet to see how much is delivering.

Also, do you have LLDP enabled so that they can negotiate correctly the current they need?

The switch is PoE or PoE+, which AP is the one you are connected to, how much power does it need to turn on?

Hi Ariyap,

the poe used to work and now it doesn't any longer, but it's available to pass data. I was able to test it by connecting my laptop to a specific port.

Is there a way I can just show logs for a specific port?

The command you shared might be to general to narrow down the source.

Thank you,

so does the PoE ports works and then after a while it doesn't? there should be some sort of log generated for it. "show log -r" should provide some indication.

Hi team,

I hope I can get proper help since I wasn't able to get it from the TAC the first time, this is the second time that it's happening after replacing a Switch.

I have 2 Aruba switches 2530 managed in cloud central. Some of the ports are not delivering power to poe devices such as IAP or Voip phones but they do pass data traffic when an end point is connected such as laptop or copier (that don't require power).

In Central, it shows the power being delivered is not even a quarter or the amount that can be handle 300W + and no alerts about ports issues as well. I even tried to change the setting for the designated port as poe "critical" and "high", yet the phone is not getting power.

I tested the phone to another port within the same switch and it's getting power. I'm not so sure whether the building as some power issues that damaged the ports, but this is the second time that I've replaced it.

The first time, when I called the TAC they weren't able to help so they quickly send me a replacement. Now that it happened again, it's imperative that I need to find out

1)  If the port is really damaged (burnt/shock).

2) if a notification can be triggered.

3) what it's causing (up to me and facility department if it's an electrical issue).

4) Diagnostc tool (cli commands/power self check) to come conclusion.

Thank you airheads community.