[j-nsp] EX4200-24P chassis output

[Ben Dale]

Hi all,

I have an EX4200-24P with a 600W and a 930W power supply installed and for some reason, only the first 12 ports (0-11) are providing power. 600W PSUs should be enough to do the whole 24 ports, so I'm not sure why this isn't working.

If anyone has a EX4200-24P (or EX3200-24P for that matter) handy, could you send through the output of show chassis hardware detail? I'm seeing a reference in this switch to a 12 Port PoE module which bothers me somewhat:

show chassis hardware detail
Hardware inventory:
Item Version Part number Serial number Description
Chassis BN0208418272 EX4200-24P
Routing Engine 1 REV 15 750-021257 BN0208418272 EX4200-24P, 24 POE
Routing Engine 1 BN0208418272 EX4200-24P, 24 POE
FPC 1 REV 15 750-021257 BN0208418272 EX4200-24P, 24 POE
CPU BUILTIN BUILTIN FPC CPU
PIC 0 BUILTIN BUILTIN 24x 10/100/1000 Base-T
PIC 1 REV 05 711-026017 CH0211104102 2x 10GE SFP+
Xcvr 0 REV 01 740-021308 AK20S1C SFP+-10G-SR
POE REV 06 711-021269 AQ0208417591 12 Port PoE Module <--- Yikes?!
BRD REV 09 711-021264 AK0208417738 EX4200-24T, 8 POE
Power Supply 2 REV 02 740-020958 AU0808255783 PS 600W AC
Power Supply 3 REV 04 740-020959 AV0810470799 PS 930W AC
Fan Tray Fan Tray

I got this switch a month ago, but it was clearly old stock with JUNOS 9.2 running on it in a completely unusable state, so I'm more than a little concerned.

Cheers,

Ben

[Rob Foehl]

Post by Ben Dale
I have an EX4200-24P with a 600W and a 930W power supply installed and
for some reason, only the first 12 ports (0-11) are providing power.
600W PSUs should be enough to do the whole 24 ports, so I'm not sure why
this isn't working.

You can't mix them -- I ran into this about a year ago. If memory serves,
there should be messages along the lines of "power supplies not redundant"
in the logs, and maybe under show chassis alarms as well. You should get
power on all ports if you boot with just one of the supplies installed,
and a pair of 600W supplies is sufficient for a 24P.

Post by Ben Dale
If anyone has a EX4200-24P (or EX3200-24P for that matter) handy, could
you send through the output of show chassis hardware detail? I'm seeing
a reference in this switch to a 12 Port PoE module which bothers me

That's normal -- it's a "36 port PoE Module" in a 48P, and absent in the T
models. The first 12 ports are apparently wired on the board, and I'd
guess the 8 port limit on the 24/48T is due to the available power budget.

-Rob