My switch only have 1 PSU which is 930W.
I already tried downgrade Junos to 12.3, the problem still persist. For the 15 release , I think
15.1R7.9 is latest.
The problem may be the FPC can not know how much power PSU can supply so that it stop all POE port.
FPC 0 PEM 1 is not supported
When I request reboot, I notice that at first all poe devices are power up then shutdown.
I am waiting for new PSU to check.
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Hien Nguyen
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Original Message:
Sent: 05-10-2021 07:43
From: Unknown User
Subject: EX4200-48PX can not start POE
The lack of PoE is likely due to the absence of any power supplies:
FPC 0 Power Supply 0 AbsentFPC 0 Power Supply 1 Absent
Since the switch is obviously powered, I'd guess you have a hardware failure or have encountered a software bug. If the issue is otherwise impacting and you can risk the switch not coming powering back up, you may try a reboot (with cold power cycle) to see if it clears up. 15.1 is a particularly bad software release on the 4200, so you may want to update to the latest service release 15.1R7-S9 as part of the reboot to make sure you aren't hitting any known bugs.
Original Message:
Sent: 05-10-2021 00:54
From: Hien Nguyen
Subject: EX4200-48PX can not start POE
I got the problem with POE, all ports stopped feeding power to devices and got alarms in chassis.
root> show chassis alarms
1 alarms currently active
Alarm time Class Description
2018-09-11 07:36:59 UTC Major FPC 0 PEM 1 is not supported
{master:0}
root>
Other ports which connected to non-poe devices are working ok.
Is that the PEM problem? Thank you.
More information here:
root> show poe controller
Controller Maximum Power Guard Management Status Lldp
index power consumption band Priority
0 0.00W 0.00W 0W AT_MODE Disabled
{master:0}
root> show poe interface
Interface Admin Oper Max Priority Power Class
status status power consumption
ge-0/0/0 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/1 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/2 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/3 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/4 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/5 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/6 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/7 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/8 Enabled OFF 0.0W Low 0.0W not-applicable
ge-0/0/9 Enabled OFF 0.0W Low 0.0W not-applicable
root@:RE:0% lcdd 0 chassism
Telnet escape character is '^D'.
Trying 128.0.0.16...
Connected to 128.0.0.16.
Escape character is '^D'.
chassism<0>#chassism<0>#poe get system status
CPU Status 1 = 0x0 ; normal.
CPU Status 2 = 0x2; less than 8 devices.
Factory default = 0x0 ; factory default param not set.
GIE = 0x0 ; GIE Normal.
Private Label = 0x0
User Byte = 0xff
Device Fail Status = (0xf0), all devices OK.
Temperature disconnect = (0x0), all devices temperatures ok.
Temperature Alarm = (0x0), all devices temperatures under limit.
Interrupt Register = 0x0
chassism<0>#
--------------------------------------------------------------------------
Model: ex4200-48px
Junos: 15.1R7.9
JUNOS EX Software Suite [15.1R7.9]
JUNOS FIPS mode utilities [15.1R7.9]
JUNOS Online Documentation [15.1R7.9]
JUNOS EX 4200 Software Suite [15.1R7.9]
JUNOS Web Management Platform Package [15.1R7.9]
{master:0}
root> show chassis environment no-forwarding
Class Item Status Measurement
Power FPC 0 Power Supply 0 Absent
FPC 0 Power Supply 1 Absent
Temp FPC 0 CPU OK 40 degrees C / 104 degrees F
FPC 0 EX-PFE1 OK 54 degrees C / 129 degrees F
FPC 0 EX-PFE2 OK 64 degrees C / 147 degrees F
FPC 0 EX-PFE3 OK 52 degrees C / 125 degrees F
FPC 0 GEPHY Front Left OK 39 degrees C / 102 degrees F
FPC 0 GEPHY Front Middle OK 41 degrees C / 105 degrees F
FPC 0 GEPHY Front Right OK 41 degrees C / 105 degrees F
FPC 0 Uplink Conn OK 41 degrees C / 105 degrees F
Fans FPC 0 Fan 1 OK Spinning at normal speed
FPC 0 Fan 2 OK Spinning at normal speed
FPC 0 Fan 3 OK Spinning at normal speed
{master:0}
root> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis FP0214320157 EX4200-48PX
Routing Engine 0 REV 27 750-034195 FP0214320157 EX4200-48PX,48 POE+
FPC 0 REV 27 750-034195 FP0214320157 EX4200-48PX,48 POE+
CPU BUILTIN BUILTIN FPC CPU
PIC 0 BUILTIN BUILTIN 48x 10/100/1000 Base-T
Fan Tray Fan Tray
{master:0}
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Hien Nguyen
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