SG350-10P PoE issue

EricTronic · ‎08-28-2020

Hi,

I have a SG350-10P switch running the last 2.5.5.47 firmware.

The switch is set to factory defaults. Has yet to be programmed.

I noticed that my access points didn't get any power. Checked with an external PoE adapter, AP working fine. Just not with the switch.

Switch says it has a nominal power available of 1W. How is this possible? Should be 62W with this kind of switch. It's AC powered, nothing connected.

Greetz Erik

Output of show power inline:

switchf87b5c#sh power inline 

Power-limit mode: Class based
Usage threshold: 95%
Trap: Disable
Legacy Mode: Enable
Inrush Test: Enable
Class Error Detection: Enable
Unit Module         Nominal   Consumed     Temp     SW            PSE chipset
                    Power (W) Power (W)    (C)      Version       HW Revision 
---- -------------- --------- ------------ -------- ------------- -----------------
1    SG350-10P      1          0 (0%)      62       23.190.18.3   PD69208 - 0x4A02


Interface Admin Oper Power (W) Class Device Priority 
---------- ---------- ----------- ----------------- ----- -------------- -------- 
gi1 Auto Searching 0.0 0 low 
gi2 Auto Searching 0.0 0 low 
gi3 Auto Searching 0.0 0 low 
gi4 Auto Searching 0.0 0 low 
gi5 Auto Searching 0.0 0 low 
gi6 Auto Searching 0.0 0 low 
gi7 Auto Searching 0.0 0 low 
gi8 Auto Searching 0.0 0 low

switchf87b5c#

marce1000 · ‎08-28-2020

- What's the ap-model and power-needs ?

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

EricTronic · ‎08-30-2020

Hi M,

No AP connected, no power needs in the above setting. However, I'd like to connect some APs, consuming 3.2W each. But everything I connect results in a "Failed".

Switch says there's only 1W available. All my other SG350-10P switches says there's 62W nominal power.

Switch is brand new, original power supply.

Now I set the max power of the 1st port to 4W, disabled the rest. Nothing strange in the running-config.

Logging says something about switches the active power source. Is this normal?

2147483641 2020-Aug-30 09:29:33 Informational %SNMP-I-CDBITEMSNUM: Number of startup configuration items loaded: 121
2147483642 2020-Aug-30 09:29:33 Informational %SNMP-I-CDBITEMSNUM: Number of running configuration items loaded: 121
2147483643 2020-Aug-30 09:29:28 Informational %NT_poe-I-PoEPowerSourceChange: Active power source set to PS for unit 1
2147483644 2020-Aug-30 09:29:27 Informational %Entity-I-SEND-ENT-CONF-CHANGE-TRAP: entity configuration change trap.
2147483645 2020-Aug-30 09:29:27 Informational %MLDP-I-MASTER: Switching to the Master Mode.
2147483646 2020-Aug-30 09:29:27 Warning %Environment-W-RPS-STAT-MSG: Power supply source changed to Main Power Supply.
2147483647 2020-Aug-30 09:29:26 Informational %INIT-I-InitCompleted: Initialization task is completed

switchf87b5c# sh ru
config-file-header
switchf87b5c
v2.5.5.47 / RTESLA2.5.5_930_364_286
CLI v1.0
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
!
!
unit-type-control-start
unit-type unit 1 network gi uplink none
unit-type-control-end
!
voice vlan oui-table add 0001e3 Siemens_AG_phone
voice vlan oui-table add 00036b Cisco_phone
voice vlan oui-table add 00096e Avaya
voice vlan oui-table add 000fe2 H3C_Aolynk
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone
voice vlan oui-table add 00e075 Polycom/Veritel_phone
voice vlan oui-table add 00e0bb 3Com_phone
bonjour interface range vlan 1
hostname switchf87b5c
username administrator password encrypted 14ba7ddc908102543a1ab04a204bf129c60607c1 privilege 15
power inline limit-mode port
clock timezone CET +1
clock summer-time web recurring eu
clock source sntp
sntp server 192.168.32.1
!
interface GigabitEthernet1
power inline limit 4000
no macro auto smartport
!
interface GigabitEthernet2
power inline never
no macro auto smartport
!
interface GigabitEthernet3
power inline never
no macro auto smartport
!
interface GigabitEthernet4
power inline never
no macro auto smartport
!
interface GigabitEthernet5
power inline never
no macro auto smartport
!
interface GigabitEthernet6
power inline never
no macro auto smartport
!
interface GigabitEthernet7
power inline never
no macro auto smartport
!
interface GigabitEthernet8
power inline never
no macro auto smartport
!
interface GigabitEthernet9
no macro auto smartport
!
interface GigabitEthernet10
no macro auto smartport
!
exit
switchf87b5c#

Greetz Erik

Sujoy Paria · ‎08-31-2020

Hi,

Please share the AP brand name and model details. What are the PoE standard supported on that AP?

EricTronic · ‎09-04-2020

Hi,

AP is not the issue. Issue is that the switch says it has only 1W total power available for PoE. It should be 62W.

Unit Module         Nominal   Consumed     Temp     SW            PSE chipset
                    Power (W) Power (W)    (C)      Version       HW Revision 
---- -------------- --------- ------------ -------- ------------- -----------------
1    SG350-10P      1          0 (0%)      62       23.190.18.3   PD69208 - 0x4A02

...should read....

Unit Module         Nominal   Consumed     Temp     SW            PSE chipset
                    Power (W) Power (W)    (C)      Version       HW Revision 
---- -------------- --------- ------------ -------- ------------- -----------------
1    SG350-10P      62         0 (0%)      62       23.190.18.3   PD69208 - 0x4A02

...as it does with all other SG350-10P switches I have.

Tried powering it as a PD, no difference. Switching between AC or PoE powered makes no difference. Switch keeps saying that it has only 1W available, so every AP I connect says 'Failed' cuz every AP needs more that 1W.... Mine is a Unifi UAP-AC-PRO, needs 3.2W.

But that doesn't matter. What matters is that the switch has only 1W available, no matter what it's power source is.

All other 5 SG350-10P switches I own say they have 62W available. Just this single one says it has only 1W for PoE. Could be a simple defect? It's brand new, so I could send it back. But if a simple command could bring it back..... I can't find it anyway.

Greetz Erik

Keslar · ‎07-14-2024

Eric,

In the four years since your last update, did you ever find a solution for this issue?

Thanks,

[hris