[ASK] The Temprature after upgrade card

[thekotaksampah]

Hello guys, I have a little problem. I'm afraid it can be a big impact soon. So I want to ask you for help.

I have upgraded my SR-7 Router module. I upgraded sfm-2 to sfm-4.. and I try to monitor.. there was a temperature difference and the gap is so far.

It's the temprature before I upgraded

Code: Select all

===============================================================================
Card A
===============================================================================
Slot      Provisioned         Equipped            Admin      Operational       
          Card-type           Card-type           State      State             
-------------------------------------------------------------------------------
A         sfm2-200g           sfm2-200g           up         up/active   


    Manufacturing deviations      : DXX
    Manufacturing assembly number : 
    Administrative state          : up
    Operational state             : up
    Temperature                   : 39C
    Temperature threshold         : 75C
    Software boot (rom) version   : X-7.0.R17 on Tue Feb 8 09:32:18 PST 2011 by*
    Software version              : TiMOS-C-7.0.R19 cpm/hops ALCATEL SR 7750 Co*
    

And the capture after upgrade

Code: Select all

===============================================================================
Card A
===============================================================================
Slot   Provisioned Type                            Admin Operational   Comments
           Equipped Type (if different)            State State         
-------------------------------------------------------------------------------
A      sfm4-12                                     up    up/active     


    Administrative state          : up
    Operational state             : up
    Temperature                   : 59C
    Temperature threshold         : 75C
    Software boot (rom) version   : X-11.0.R4 on Tue Jul 23 12:27:33 PDT 2013
                                    by builder
    Software version              : TiMOS-C-11.0.R6 cpm/hops ALCATEL SR 7750
                                    Copyright (c) 2000-2013 Alcatel-Lucent.
                                    All rights reserved. All use subject to
                                    applicable license agreements.
                                    Built on Tue Nov 19 15:12:45 PST 2013 by
                                    builder in /rel11.0/b1/R6/panos/main
   

Can anyone give me reason why the temperature can be happened?

BR,
Thekotaksampah

[mivens]

You have an SR12 rather than an SR7 there.

What linecards do you have installed? Certain IOM/IMMs require Enhanced Fan Trays to be installed, for example the IMM12-10GB-SFP+ or the IMM1-100GB-CFP.

Check the 7750 SR-12 Installation Guide.

[thekotaksampah]

when I upgrade sfm3 to sfm4. the os detect teh card is sfm4-12. The problem is why the temperature is higher than before when I use sfm3. Is it the characteristic of the card or not?

I try to looking for in alu installation guide abaout the imm, sfm or iom-3xp temprature. But I found nothing there..

[mivens]

Taking a quick look at two of my SR12s, the SFM4 cards do seem to run hotter than the SFM3s, same as you.

Code: Select all

A:SR12-1# show card a detail | match "Temp|sfm" expression
A      sfm3-12                                     up    up/active
    Temperature                   : 38C
    Temperature threshold         : 75C

A:SR12-2# show card a detail | match "Temp|sfm" expression
A      sfm4-12                                     up    up/active
    Temperature                   : 52C
    Temperature threshold         : 75C

The point I was trying to make is that if at the same time as installing your SFM4s you added 100GE IMMs you would need an enhanced fan tray or the whole chassis would be too hot. A common reason for upgrading to SFM4s is to take advantage of 100Gb/slot IMMs. You will find what I refer to if you search for the phrase "enhanced" in the Installation Guide.

[thekotaksampah]

Thanks mivens.. It's very helpful