Re: [j-nsp] T4000 power architecture

2014-09-27 Thread Tom Storey
...@gmail.com Sent: Tuesday, September 23, 2014 9:40 PM To: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] T4000 power architecture Bumping for good measure... So JTAC are suggesting it's either the PEM or the midplane, but I was hoping to get some more information so I can validate what I'm being

Re: [j-nsp] T4000 power architecture

2014-09-24 Thread Sam Silvester
From: juniper-nsp juniper-nsp-boun...@puck.nether.net on behalf of Sam Silvester sam.silves...@gmail.com Sent: Tuesday, September 23, 2014 9:40 PM To: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] T4000 power architecture Bumping for good measure... So JTAC are suggesting

Re: [j-nsp] T4000 power architecture

2014-09-23 Thread Sam Silvester
Bumping for good measure... So JTAC are suggesting it's either the PEM or the midplane, but I was hoping to get some more information so I can validate what I'm being told - which, currently, is very little. Basically the suggestion is replace the PEM, if that doesn't work replace the chassis.

Re: [j-nsp] T4000 power architecture

2014-09-10 Thread Sam Silvester
Hi Aqeel - thanks for the reply. Agree 100% - the problem is, we only seem to be getting power to FPC0 from one PEM... have a look below (and also note that FPC1 is fine, as are the rest of the FPCs). The question is - are we looking at a PEM fault here, or a midplane fault? As per previous

Re: [j-nsp] T4000 power architecture

2014-09-10 Thread Sam Silvester
Pins 'seem' ok from a visual inspection. Our support vendor is involved, however because of reasons I'm getting the feeling we're now playing whack-a-mole with randomly replacing components, as opposed to actually using the results from previous tests such as moving the FPC to guide us towards a

[j-nsp] T4000 power architecture

2014-09-09 Thread Sam Silvester
Howdy, Can anybody shed any light on how the PEMs on a T4000 actually distribute power to each FPC slot? Have the case of a single FPC slot that is showing power being received from only one of the PEMs, whilst all the other FPC slots are load sharing as expected. Replacing the FPC shows the