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IMM Temperature
Posted: 24 Feb 2016 10:22
by yenny
Hi all. I need to analyze the temperature of IMM on my 7750 SR and I've found that the card temperature differs with that of the daughter card. I can't undestand which is the valid data for the IMM card.
B:router# show card 1 detail | match "Temp|imm" expression
1 imm12-10gb-sf+ up up
Temperature : 49C
Temperature threshold : 75C
B:router# show mda 1/1 detail | match "Temp|imm" expression
1 1 imm12-10gb-xp-sf+ up up
Temperature : 56C
Temperature threshold : 75C
B:router# show card 8 detail | match "Temp|imm" expression
8 imm-2pac-fp3 up up
Temperature : 61C
Temperature threshold : 75C
B:router# show mda 8/1 detail | match "Temp|p10" expression
8 1 p10-10g-sfp up up
Temperature : 47C
Temperature threshold : 75C
B:router# show mda 8/2 detail | match "Temp|p10" expression
8 2 p10-10g-sfp up up
Temperature : 40C
Temperature threshold : 75C
Does anyone have an idea?
Thanks.
Re: IMM Temperature
Posted: 24 Feb 2016 12:45
by mivens
They are both valid.
The two temperatures are from sensors on different parts of the card.
Some parts of the card are hotter than others.
Re: IMM Temperature
Posted: 26 Feb 2016 06:56
by yenny
Thank you very much mivens
I checked in many many routers with IMM and seems to have a similar behavior at all of them: For IMM cards with a 'single MDA', the MDA temp is greater than the IOM temp. Instead, for IMM cards with 'two MDA', IOM temp is greater than the MDA temp....
I'm interested in evaluating the performance of IMM because they've failed repeatedly and I estimate that they are working at a high temperature for a long time but they never exceeded the threshold of 75 C.
I appreciate your response (so kind).
(Sorry for my english)
Yenny.
Re: IMM Temperature
Posted: 26 Feb 2016 09:19
by mivens
For your examples, the cards with a single virtual MDA have FP2 network processors and the ones with two virtual MDAs are FP3 which will influence the temperature.
Here are a couple of examples opposite to yours of single MDA IMMs where the IOM temperature is greater than the MDA temperature. One is FP2 based the others FP3. The FP3 runs hotter and this is expected.
I think the temperatures from your original post look normal.
Code: Select all
A:7750# show mda 2
===============================================================================
MDA 2/1
===============================================================================
Slot Mda Provisioned Type Admin Operational
Equipped Type (if different) State State
-------------------------------------------------------------------------------
2 1 imm5-10gb-xp-xfp up up
===============================================================================
A:7750# show mda 2 detail | match Temp | match threshold invert-match
Temperature : 27C
A:7750# show card 2 detail | match Temp | match threshold invert-match
Temperature : 38C
B:7750# show mda 7
===============================================================================
MDA 7/1
===============================================================================
Slot Mda Provisioned Type Admin Operational
Equipped Type (if different) State State
-------------------------------------------------------------------------------
7 1 p1-100g-cfp up up
===============================================================================
B:7750# show mda 7 detail | match Temp | match threshold invert-match
Temperature : 46C
B:7750# show card 7 detail | match Temp | match threshold invert-match
Temperature : 58C
*A:7750# show mda 5
===============================================================================
MDA 5/1
===============================================================================
Slot Mda Provisioned Type Admin Operational
Equipped Type (if different) State State
-------------------------------------------------------------------------------
5 1 m4-100g-cxp up up
===============================================================================
A:7750# show mda 5 detail | match Temp| match threshold invert-match
Temperature : 28C
*A:7750# show card 5 detail | match Temp| match threshold invert-match
Temperature : 52C
Re: IMM Temperature
Posted: 03 Mar 2016 07:51
by yenny
Thank you very much.