all PoE devices on ports are down!

[slaskaridis]

Hi
we have 20 access points on the first 20 ports of the switch.
The device was working fine for a few weeks (new installation)
Now, all access points are off, they do not receive power - no LEd.
I visited the site and I see that all PoE ports are off, no LED on the switch. The rest Data ports are working fine, I am able to connect on the switch normally.
I rebooted the switch and all PoE ports came back again.
After 3 days same thing, all poe ports are down.

below I see this: please explain

-> show lanpower slot 1/1
Port Maximum(mW) Actual Used(mW) Status Priority On/Off Class Type
----+-----------+---------------+-----------+---------+--------+-------+----------
1 30000 6700 Powered On High ON *
2 30000 6800 Powered On Low ON *
3 30000 6500 Powered On Low ON *
4 30000 6700 Powered On Low ON *
5 30000 7000 Powered On Low ON *
6 30000 6800 Powered On Low ON *
7 30000 6600 Powered On Low ON *
8 30000 6900 Powered On Low ON *
9 30000 9100 Powered On Low ON *
10 30000 6800 Powered On Low ON *
11 30000 9400 Powered On Low ON *
12 30000 6600 Powered On Low ON *
13 30000 7200 Powered On Low ON *
14 30000 9100 Powered On Low ON *
15 30000 7500 Powered On Low ON *
16 30000 6800 Powered On Low ON *
17 30000 9600 Powered On Low ON *
18 30000 6800 Powered On Low ON *
19 30000 6700 Powered On Low ON *
20 30000 9200 Powered On Low ON *
21 30000 6800 Powered On Low ON *
22 30000 0 Searching Low ON *
23 30000 4000 Powered On Low ON *
24 30000 6700 Powered On Low ON *
25 30000 0 Searching Low ON *
26 30000 0 Searching Low ON *
27 30000 0 Searching Low ON *
28 30000 0 Searching Low ON *
29 30000 0 Searching Low ON *
30 30000 0 Searching Low ON *
31 30000 0 Searching Low ON *
32 30000 7200 Powered On Low ON *
33 30000 0 Searching Low ON *
34 30000 0 Searching Low ON *
35 30000 0 Searching Low ON *
36 30000 0 Searching Low ON *
37 30000 2900 Powered On Low ON *
38 30000 0 Searching Low ON *
39 30000 0 Searching Low ON *
40 30000 0 Searching Low ON *
41 30000 0 Searching Low ON *
42 30000 0 Searching Low ON *
43 30000 0 Searching Low ON *
44 30000 0 Searching Low ON *
45 30000 0 Searching Low ON *
46 30000 0 Searching Low ON *
47 30000 0 Searching Low ON *
48 30000 0 Searching Low ON *

ChassisId 1 Slot 1 Max Watts 740
-900 Watts Actual Power Consumed
1640 Watts Actual Power Budget Remaining
740 Watts Total Power Budget Available
1 Power Supply Available
'*' appending port maxpower indicates 4pair port operating in 2pair mode



-> show running-directory

CONFIGURATION STATUS
Running CMM : MASTER-PRIMARY,
CMM Mode : VIRTUAL-CHASSIS MONO CMM,
Current CMM Slot : CHASSIS-1 A,
Running configuration : CERTIFIED,
Certify/Restore Status : CERTIFIED
SYNCHRONIZATION STATUS
Running Configuration : SYNCHRONIZED



-> show configuration snapshot
! Chassis:
system name "SWITCH_1_BASEMENT_1"
system contact "xxx"
system location "BASEMENT 1 U15"

! Configuration:
configuration error-file-limit 2

! Capability Manager:
! Virtual Flow Control:
! Interface:
! Port_Manager:
! Link Aggregate:
! VLAN:
vlan 1-4 admin-state enable
vlan 2 name "KNX"
vlan 3 name "VOIP"
vlan 4 name "GUEST_WIFI"
vlan 2 members port 1/1/37-46 untagged
vlan 3 members port 1/1/23-30 untagged
vlan 2 members port 1/1/36 tagged
vlan 2 members port 1/1/47-48 tagged
vlan 2 members port 1/1/53-54 tagged
vlan 3 members port 1/1/1-22 tagged
vlan 3 members port 1/1/47 tagged
vlan 3 members port 1/1/53-54 tagged
vlan 4 members port 1/1/1-3 tagged
vlan 4 members port 1/1/5-18 tagged
vlan 4 members port 1/1/20-21 tagged
vlan 4 members port 1/1/31 tagged

! Spanning Tree:
spantree vlan 1 admin-state enable
spantree vlan 2 admin-state enable
spantree vlan 3 admin-state enable
spantree vlan 4 admin-state enable

! DA-UNP:
! Bridging:
! Port Mirroring:
! IP:
ip service snmp admin-state disable
ip interface "management" address 192.168.1.3 mask 255.255.255.0 vlan 1 ifindex 1
ip interface "vlan_1" address 172.16.0.2 mask 255.255.252.0 vlan 1 ifindex 2

! IPMS:
! AAA:
aaa authentication console "local"
aaa authentication telnet "local"
aaa authentication http "local"
aaa authentication ssh "local"


! NTP:
ntp server pool.ntp.org

! QOS:
! Policy Manager:
! LLDP:
! Session Manager:
! Web:
! Trap Manager:
! Health Monitor:
! System Service:
ip name-server 8.8.8.8 8.8.4.4
ip domain-lookup

! SNMP:
snmp security no-security
snmp community-map hash-key 14be9558b08f30d389763c42542327a6 user "public" enable

! IP Route Manager:
ip static-route 0.0.0.0/0 gateway 172.16.0.1 metric 1

! LAN Power:
lanpower port 1/1/1 priority high
lanpower slot 1/1 service start

! DHCP Snooping:
! OVC:
! IP DHCP RELAY:
! MGMT AGENT:

->



PS: After reboot, the poe metrics are normal:


s-> show lanpower slot 1/1
Port Maximum(mW) Actual Used(mW) Status Priority On/Off Class Type
----+-----------+---------------+-----------+---------+--------+-------+----------
1 30000 6400 Powered On High ON *
2 30000 6400 Powered On Low ON *
3 30000 6500 Powered On Low ON *
4 30000 6600 Powered On Low ON *
5 30000 6700 Powered On Low ON *
6 30000 6500 Powered On Low ON *
7 30000 6500 Powered On Low ON *
8 30000 6600 Powered On Low ON *
9 30000 6500 Powered On Low ON *
10 30000 6900 Powered On Low ON *
11 30000 9100 Powered On Low ON *
12 30000 6500 Powered On Low ON *
13 30000 7000 Powered On Low ON *
14 30000 6600 Powered On Low ON *
15 30000 6500 Powered On Low ON *
16 30000 6400 Powered On Low ON *
17 30000 6500 Powered On Low ON *
18 30000 6300 Powered On Low ON *
19 30000 6500 Powered On Low ON *
20 30000 7100 Powered On Low ON *
21 30000 6100 Powered On Low ON *
22 30000 0 Searching Low ON *
23 30000 4000 Powered On Low ON *
24 30000 6400 Powered On Low ON *
25 30000 0 Searching Low ON *
26 30000 6600 Powered On Low ON *
27 30000 0 Searching Low ON *
28 30000 0 Searching Low ON *
29 30000 0 Searching Low ON *
30 30000 0 Searching Low ON *
31 30000 0 Searching Low ON *
32 30000 0 Searching Low ON *
33 30000 0 Searching Low ON *
34 30000 0 Searching Low ON *
35 30000 0 Searching Low ON *
36 30000 0 Searching Low ON *
37 30000 3000 Powered On Low ON *
38 30000 0 Searching Low ON *
39 30000 0 Searching Low ON *
40 30000 0 Searching Low ON *
41 30000 0 Searching Low ON *
42 30000 0 Searching Low ON *
43 30000 0 Searching Low ON *
44 30000 0 Searching Low ON *
45 30000 0 Searching Low ON *
46 30000 0 Searching Low ON *
47 30000 0 Searching Low ON *
48 30000 0 Searching Low ON *

ChassisId 1 Slot 1 Max Watts 740
160 Watts Actual Power Consumed
580 Watts Actual Power Budget Remaining
740 Watts Total Power Budget Available
1 Power Supply Available
'*' appending port maxpower indicates 4pair port operating in 2pair mode

[slaskaridis]

hi
any update on this?
i have a second switch with exactly the same behaviour
please advice
thanks.

[Gleylancer]

Check the swlog to find out what happened at the time of power loss. From looking at the "show lanpower", it seems like everything is working fine, before and after...

[slaskaridis]

Hi.
I opened a support ticket and this is the solution:

This is a software known issue and it is fixed in the 5.1R02, which is available for download in the portal.

Thanks.

[frountalas]

Ηi,
I have the same problem.
I am using the latest version (OS2260-P48 5.1.80.R01 GA) but the problem remains.
I had the same problem in the past but everything was resolved with a simple upgrade.
Any ideas?

[haroun]

5.1R02

Hi.
I opened a support ticket and this is the solution:

This is a software known issue and it is fixed in the 5.1R02, which is available for download in the portal.

Thanks.