http://www.cisco.com/c/en/us/support/docs/field-notices/641/fn64117.html

ccarloscorrea · ‎08-02-2016

Hi guys,

I work in a company where there are 4 ASR 9922 chassis newly installed, each have 4 and 5 cards SFC. They have the same behavior of high temperature over 40 ° C (as the website says Ciscohttp://www.cisco.com/c/en/us/products/collateral/routers/asr-9000-series-aggregation-services-routers/data_sheet_c78-501767.html ) In the NPs, FIA and other components. Currently, there is no traffic through them, all were installed correctly and tell us the installation guide procedure (http://www.cisco.com/c/en/us/td/docs/routers/asr9000/hardware/installation/guide/asr9kHIGbk/asr9kIGprep.html). These chassis are installed at different sites that have a room temperature 21°C. Could someone tell me that can be happening?

Here is fragment from "show environments."

R/S/I Modules Sensor (deg C)
0/RP0/*
host die_CPU 39.0
host die_FabArbiter0 43.0
host die_FIA 43.0
host die_FabSwitch0 56.0
host temp_u18cb 24.5
host temp_u16cb 40.6
host temp_u14cb 36.1
host temp_u12cb 28.0
host temp_u17cb 34.5
host temp_u15cb 40.0
host temp_u13cb 30.9
host temp_u11cb 36.1
host Inlet0 24.3
host Hotspot0 40.6

0/RP1/*
host die_CPU 39.5
host die_FabArbiter0 54.0
host die_FIA 56.0
host die_FabSwitch0 45.0
host temp_u18cb 25.1
host temp_u16cb 34.0
host temp_u14cb 29.5
host temp_u12cb 34.3
host temp_u17cb 38.6
host temp_u15cb 44.8
host temp_u13cb 32.8
host temp_u11cb 39.7
host Inlet0 25.0
host Hotspot0 34.0

0/6/*
ep0 Inlet0 36.0
ep0 Hotspot0 44.0

host die_NP0 74.0
host die_NP1 72.0
host die_NP2 63.0
host die_NP3 65.5
host die_FIA0 64.0
host die_FIA1 63.0
host die_FIA2 59.0
host die_FIA3 56.0
host die_FabSwitch 66.5
host Inlet0 30.0
host Hotspot0 55.3

0/9/*
host die_NP0 78.0
host die_NP1 68.5
host die_NP2 70.5
host die_NP3 65.5
host die_NP4 66.0
host die_NP5 70.5
host die_NP6 60.0
host die_NP7 68.5
host die_FIA0 58.0
host die_FIA1 48.0
host die_FIA2 59.0
host die_FIA3 67.0
host die_FabSwitch 71.0
host db_np_0 66.2
host db_np_1 57.9
host db_skt_0 54.2
host db_inlet 36.7
host bb_inlet 30.5
host bb_hotspot_0 54.1
host bb_exhoust_0 66.4
host bb_exhoust_1 61.0
host bb_hotspot_1 54.6
host Inlet0 30.1
host Hotspot0 54.3

0/16/*
ep0 Inlet0 35.5
ep0 Hotspot0 42.6

host die_NP0 64.5
host die_NP1 68.5
host die_NP2 57.0
host die_NP3 61.5
host die_FIA0 67.5
host die_FIA1 67.0
host die_FIA2 61.5
host die_FIA3 59.0
host die_FabSwitch 64.0
host Inlet0 30.3
host Hotspot0 52.8

0/19/*
host die_NP0 67.5
host die_NP1 65.0
host die_NP2 67.5
host die_NP3 62.5
host die_NP4 63.5
host die_NP5 64.0
host die_NP6 53.5
host die_NP7 58.5
host die_FIA0 58.0
host die_FIA1 49.0
host die_FIA2 57.0
host die_FIA3 63.0
host die_FabSwitch 69.0
host db_np_0 60.5
host db_np_1 56.0
host db_skt_0 49.4
host db_inlet 34.9
host bb_inlet 34.9
host bb_hotspot_0 54.8
host bb_exhoust_0 64.1
host bb_exhoust_1 60.3
host bb_hotspot_1 52.0
host Inlet0 34.8
host Hotspot0 54.8

xthuijs · ‎08-03-2016

hi carlos,

actually I want to say that these temperatures are not that bad. the modular cards are a bit hotter then what I would expect to see but your inlet temperatures are somewhat high also, could it be that the air flow is obstructed?

possibly as a suggestion you could tweak the altitude of the system so that the fans spin a bit faster to provide more cooling.

admin config: environment altitude 4000

it might need a few minutes to adjust the fan speeds.

at my 3000 meter config I have fan speeds of 6000rpm that can be seen via admin show env fan

cheers

xander

here is a snippet from my lab 9922:

RP/0/RP1/CPU0:ASR9922#admin show env temp

Wed Aug 3 12:09:52.163 EDT

R/S/I Modules Sensor (deg C)

0/RP0/*

host die_CPU 34.5

host die_FabArbiter0 45.0

host die_FIA 42.0

host die_PCH 38.0

host die_DIMM0 32.0

host die_DIMM1 32.0

host die_DIMM2 32.0

host die_DIMM3 30.0

host die_FabSwitch0 42.0

host air_inlet 28.4

host sm15_0_downstream 39.3

host sm15_0_inlet 35.4

host sm15_1_upstream 30.5

host air_outlet 32.3

host Inlet0 28.4

host Hotspot0 39.3

0/8/*

host die_NP0 63.0

host die_NP1 47.0

host die_FabArbiter0 50.0

host die_FIA0 53.5

host die_FIA1 46.0

host die_FabSwitch 60.0

host die_DPSwitch 48.5

host die_CPU 39.0

host Hotspot1 44.5

host Hotspot2 38.5

host bb_inlet 31.3

host bb_hotspot_0 38.1

host bb_hotspot_1 40.5

host db_inlet 28.1

host db_outlet 40.7

host apm_inlet 32.0

host Inlet0 31.3

host Hotspot0 38.1

0/14/*

ep0 Inlet0 28.7

ep0 Hotspot0 35.3

ep1 Inlet0 26.0

ep1 Hotspot0 31.6

host die_NP0 42.5

host die_NP1 51.5

host die_FIA0 50.5

host die_FIA1 46.0

host die_FabSwitch 52.0

host Inlet0 26.8

host Hotspot0 36.6

ccarloscorrea · ‎08-03-2016

Hi xthuijs,

Thanks you for reading my post. The air flow ins't obstructed.I think that it change this parameter, Could not degrade the life of the fans? because I don't know if the chassis systems have a temperature controller. What do you say?

xthuijs · ‎08-03-2016

I changed my system to the default alititude and I saw my fan speed dropping to 4k rpm.

the temperatures start to match what you are having at 60C.

as long as they are below 90C is what you must maintain.

I think you'll want to set the altitude to 4000meters to increase the fan speed and get some more airflow. the fan trays are rated up to 14k rpm.

so with the adjustment well within bounds! :)

cheers!

xander

Thomas Brunsfeld · ‎09-08-2016

please follow the advice in Field Notice FN 64117, there is an issue with the default fan speed (RPM) on that box.

http://www.cisco.com/c/en/us/support/docs/field-notices/641/fn64117.html

greetings

thomas

High card temperature on Chassis ASR 9922

http://www.cisco.com/c/en/us/support/docs/field-notices/641/fn64117.html