Wired Intelligent Edge

I seem to run into a power issue on my 2930M stack (5) with IAP215's.  I experienced something similar on my 2920's but kind of wrote it off as human error and went on.  Seems that if I get more than 11 or 12 IAP's on a specific switch, the IAP's stop booting correctly.  Mostly this is on the last one plugged in, or the last one to boot.  Power settings say that the switch is only using about 105 watts with 370 being max available.

I reached out to a rep and was told to enable ​LLDP-MED on the switch. But not sure why that would matter after several IAP's are plugged in and not after the first ones.  I also can't seem to find where to enable LLDP-MED at the SWITCH level.  Only at the individual ports.  is there a PROBLEM with enabling it on EVERY port?

I am not a big CLI guy so most of what I do, I do at the Web interface.  If enabling LLDP-MED on all ports is the answer, I will also want to write a command into the switch config file that enables it on all the ports, and modify the config file for my other switches (mostly 2920's) to benefit.

------------------------------
Christopher Russell
------------------------------

LLDP can negotiate power with a PD by using LLDP MED TLVs (disabled by default).
you can enabled it using the
int <port-list> PoE-lldp-detect [enabled|disabled]

if LLDP is not used for nego then the switch will allocate the maximum amount of power for that class.

------------------------------
Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
------------------------------

Original Message:
Sent: Jun 07, 2021 01:16 PM
From: Christopher Russell
Subject: POE issues on 2930m stack with IAP215's

I seem to run into a power issue on my 2930M stack (5) with IAP215's.  I experienced something similar on my 2920's but kind of wrote it off as human error and went on.  Seems that if I get more than 11 or 12 IAP's on a specific switch, the IAP's stop booting correctly.  Mostly this is on the last one plugged in, or the last one to boot.  Power settings say that the switch is only using about 105 watts with 370 being max available.

I reached out to a rep and was told to enable ​LLDP-MED on the switch. But not sure why that would matter after several IAP's are plugged in and not after the first ones.  I also can't seem to find where to enable LLDP-MED at the SWITCH level.  Only at the individual ports.  is there a PROBLEM with enabling it on EVERY port?

I am not a big CLI guy so most of what I do, I do at the Web interface.  If enabling LLDP-MED on all ports is the answer, I will also want to write a command into the switch config file that enables it on all the ports, and modify the config file for my other switches (mostly 2920's) to benefit.

------------------------------
Christopher Russell
------------------------------

I normally do configuration changes either by web interface or by rewriting the config file, that way the config is saved incase of a spontaneous reboot.  Right now the config report has 600 lines of

interface x/xx
poe-lldp-detect enabled
exit

are you saying I can write into the config file

interface 1/1-1/48,2/1-2/48,3/1 and so forth
poe-lldp-detect enabled
exit

and it will cover all of them?

------------------------------
Christopher Russell
------------------------------

Original Message:
Sent: Jun 07, 2021 10:23 PM
From: Ariya Parsamanesh
Subject: POE issues on 2930m stack with IAP215's

LLDP can negotiate power with a PD by using LLDP MED TLVs (disabled by default).
you can enabled it using the
int <port-list> PoE-lldp-detect [enabled|disabled]

if LLDP is not used for nego then the switch will allocate the maximum amount of power for that class.

------------------------------
Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.

Original Message:
Sent: Jun 07, 2021 01:16 PM
From: Christopher Russell
Subject: POE issues on 2930m stack with IAP215's

I seem to run into a power issue on my 2930M stack (5) with IAP215's.  I experienced something similar on my 2920's but kind of wrote it off as human error and went on.  Seems that if I get more than 11 or 12 IAP's on a specific switch, the IAP's stop booting correctly.  Mostly this is on the last one plugged in, or the last one to boot.  Power settings say that the switch is only using about 105 watts with 370 being max available.

I reached out to a rep and was told to enable ​LLDP-MED on the switch. But not sure why that would matter after several IAP's are plugged in and not after the first ones.  I also can't seem to find where to enable LLDP-MED at the SWITCH level.  Only at the individual ports.  is there a PROBLEM with enabling it on EVERY port?

I am not a big CLI guy so most of what I do, I do at the Web interface.  If enabling LLDP-MED on all ports is the answer, I will also want to write a command into the switch config file that enables it on all the ports, and modify the config file for my other switches (mostly 2920's) to benefit.

------------------------------
Christopher Russell
------------------------------