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Temperature / fans X440-G2


Hello,
I'm trying to deploy an X440-G2 switch but I meet a problem with the equipment

When I plug in an AP 7522 for example, after 5min I have the fans racing and making a monster noise, with a temperature rising up (I only have two ports plugged in on the switch) another POE equipment causes the same thing... This is the first time I have deployed an X440 switch, has anyone ever meet this problem?
Switch faulty?
I am in version 22.7.1.2, I was able to find on the Hub similar topics but that indicated that they were fixed with a version 22.7.1.2.

Thank for your help

LIB-SWITCH.57 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 15120 RPM
Fan-2: Operational at 15240 RPM
Fan-3: Operational at 15240 RPM
Fan-4: Operational at 15300 RPM

LIB-SWITCH.57 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
--------------------------------------------------------------------------------
Switch : X440G2-24p-10G4 92.94 Normal 0 10-100 110


LIB-SWITCH.58 # show lldp neighbors

Neighbor Neighbor Neighbor
Port Chassis ID Port ID TTL Age System Name
===============================================================================
8 E4:B9:7A:5A:AC:DA E4:B9:7A:5A:AC:DA 3601 587 Not-Advertised
9 84:24:8D:85:35:04 ge1 180 52 LIBAP
===============================================================================
NOTE: The Chassis ID and/or Port ID might be truncated to fit the screen.

LIB-SWITCH.59 # show version
Switch : Rev 09 BootROM: 1.0.1.8 IMG: 22.7.1.2
PSU-1 : Internal Power Supply
PSU-2 :

Image : ExtremeXOS version 22.7.1.2 by release-manager
on Thu Jul 11 23:31:11 EDT 2019
BootROM : 1.0.1.8
Diagnostics : 5.12
Certified Version : EXOS Linux 3.18.123, FIPS fips-ecp-2.0.16


If i unplug AP75xx the noise stop instantly :

LIB-SWITCH.86 # show fans (NO POE device plug)
Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2160 RPM
Fan-2: Operational at 2160 RPM
Fan-3: Operational at 2160 RPM
Fan-4: Operational at 2160 RPM
icon

Best answer by Ronald Dvorak 29 August 2019, 14:31

Sounds like this issue.....
https://gtacknowledge.extremenetworks.com/articles/Solution/Fan-Speed

  • When providing PoE to fewer than 6 devices, the fan speed on X440-G2 PoE models rises to over 15,000 RPM.
  • Upon exceeding 6 connected PoE devices, the fan speed begins to fall back to normal levels.


Thx to @Anton Sax for working together with the GTAC on this issue....
https://community.extremenetworks.com/extremeswitching-exos-223284/x440-g2-24p-fan-speeds-7771046#post19880959

-Ron
View original

10 replies

Userlevel 2
Are you boiling the switch in hot water? It says 92.94 degrees Celsius!!! Ok, that may be a faulty sensor or the I2C bus not working as expected, so please verify for us that this switch isn't burning hot!

/Fredrik
Userlevel 7
Sounds like this issue.....
https://gtacknowledge.extremenetworks.com/articles/Solution/Fan-Speed

  • When providing PoE to fewer than 6 devices, the fan speed on X440-G2 PoE models rises to over 15,000 RPM.
  • Upon exceeding 6 connected PoE devices, the fan speed begins to fall back to normal levels.


Thx to @Anton Sax for working together with the GTAC on this issue....
https://community.extremenetworks.com/extremeswitching-exos-223284/x440-g2-24p-fan-speeds-7771046#post19880959

-Ron
Userlevel 7
I verified the fix is in EXOS v30.3.1 (expected today or tomorrow). It only affects X440-G2-24p-10GE4 models.
It should also be in a 22.7 patch soon (probably not Patch 1-3).
Userlevel 3
Sounds like this issue.....https://gtacknowledge.extremenetworks.com/articles/Solution/Fan-Speed
  • When providing PoE to fewer than 6 devices, the fan speed on X440-G2 PoE models rises to over 15,000 RPM.
  • Upon exceeding 6 connected PoE devices, the fan speed begins to fall back to normal levels.

Thx to @Anton Sax for working together with the GTAC on this issue....https://community.extremenetworks.com/extremeswitching-exos-223284/x440-g2-24p-fan-speeds-7771046#post19880959
-Ron


I had almost the same case a year ago, but it was not detected then. Would have saved me a lot of headache.
But finally with new release it should be fixed
Hello,

Thank you all for your feedback.
I confirm that the bug is fixed with the firmware version: 30.3.1.6.

The temperature still shows me high levels but the fans no longer make any noise.

Thank you

* LIB-SWITCH.1 # show version
Switch : 800616-00-09 1709N-41430 Rev 09 BootROM: 1.0.1.8 IMG: 30.3. 1.6
PSU-1 : Internal Power Supply
PSU-2 :

Image : ExtremeXOS version 30.3.1.6 by release-manager
on Fri Aug 30 15:36:50 EDT 2019
BootROM : 1.0.1.8
Diagnostics : 5.12
Certified Version : EXOS Linux 4.14.123, FIPS fips-ecp-2.0.16

Build Tools Version : exos-mips-sdk-2.5.3.1.0



* LIB-SWITCH.4 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2160 RPM
Fan-2: Operational at 2100 RPM
Fan-3: Operational at 2100 RPM
Fan-4: Operational at 2160 RPM


* LIB-SWITCH.5 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
------------------------------------------------------- --------- ------- --- ------- ---
Switch : X440G2-24p-10G4 68.50 Normal 0 10-100 110


-----------------------

* LIB-SWITCH.19 # show lldp neighbors

Neighbor Neighbor Neighbor
Port Chassis ID Port ID TTL Age System Name
===============================================================================
7 E4:B9:7A:5A:AC:DA E4:B9:7A:5A:AC:DA 3601 341 Not-Advertised
9 B4:2D:56:8C:55:1C ge1 180 58 ap7632-8C551C
11 74:67:F7:D1:AC:0A ge1 180 21 ap7622-D1AC0A
===============================================================================
NOTE: The Chassis ID and/or Port ID might be truncated to fit the screen.

* LIB-SWITCH.20 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2160 RPM
Fan-2: Operational at 2160 RPM
Fan-3: Operational at 2100 RPM
Fan-4: Operational at 2100 RPM
* LIB-SWITCH.21 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
------------------------------------------------------- --------- ------- --- ------- ---
Switch : X440G2-24p-10G4 83.17 Normal 0 10-100 110
* LIB-SWITCH.22 #
Userlevel 2
I can verify that an X440G2-48p-10G4 I have access to runs the fans quite high despite being very warm or loaded. This is on 22.5.1.7 patch 1-9, probably released before the fix was introduced to 30.3.1.6 or 22.7.x.x.

This is what I see in a normally cooled cross connect room:

a192a.1 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
--------------------------------------------------------------------------------
Switch : X440G2-48p-10G4 61.50 Normal 0 10-100 110
a192a.2 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 7680 RPM
Fan-2: Operational at 7680 RPM
Fan-3: Operational at 7680 RPM
Fan-4: Operational at 7680 RPM

Temp shows at 61.5 C and fans rather high but not crazy high. Temp is probably measured on the CPU or the exhaust and hence not showing anything near room temp. In your first post, it said 92.94 C, which would seem very off, probably because of software.

Would you say that the temp now is on par with the temp when the lines in the first post were recorded?

Incidentally, here is from an X450G2-48p's running 22.7.1.2 in a room with, say 23 C temp:

a123a.1 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
--------------------------------------------------------------------------------
Switch : X450G2-48p-10G4 74.00 Normal 0 10-100 110
a123a.2 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 6
PartInfo: 1523N-43310 800560-00-03
Revision: 03
Fan-1: Operational at 3120 RPM
Fan-2: Operational at 6420 RPM
Fan-3: Operational at 3120 RPM
Fan-4: Operational at 5940 RPM
Fan-5: Operational at 3120 RPM
Fan-6: Operational at 6060 RPM

Some variation in fan speeds! It seems the individual fans keep their speed, so they don't fluctuate (more than some 20-80 rpm per fan), at least not within the few minutes I've monitored them. PoE power is 55 W right now.

/Fredrik
Hi Fredrik ;

The first measurement was taken at the same location. The switch is in a room where it is either about 23°.
I actually think that the temperature should be the same as the CPU temperature because the switch is not very hot.

Here is a report from this morning still in the same room with POE consumption.

LIB-SWITCH.5 # show inline-power info ports

Port State Class Volts Curr Power Fault
(mA) (Watts)
1 searching ------ 0.0 0 0.000 None
2 searching ------ 0.0 0 0.000 None
3 searching ------ 0.0 0 0.000 None
4 searching ------ 0.0 0 0.000 None
5 searching ------ 0.0 0 0.000 None
6 delivering class4 56.2 128 7.200 None
7 searching ------ 0.0 0 0.000 None
8 searching ------ 0.0 0 0.000 None
9 searching ------ 0.0 0 0.000 None
10 searching ------ 0.0 0 0.000 None
11 searching ------ 0.0 0 0.000 None
12 searching ------ 0.0 0 0.000 None
13 searching ------ 0.0 0 0.000 None
14 searching ------ 0.0 0 0.000 None
15 searching ------ 0.0 0 0.000 None
16 searching ------ 0.0 0 0.000 None
17 searching ------ 0.0 0 0.000 None
18 searching ------ 0.0 0 0.000 None
19 searching ------ 0.0 0 0.000 None
20 searching ------ 0.0 0 0.000 None
21 searching ------ 0.0 0 0.000 None
22 searching ------ 0.0 0 0.000 None
23 searching ------ 0.0 0 0.000 None
24 searching ------ 0.0 0 0.000 None

LIB-SWITCH.6 # show fans
Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2100 RPM
Fan-2: Operational at 2160 RPM
Fan-3: Operational at 2100 RPM
Fan-4: Operational at 2160 RPM

LIB-SWITCH.7 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
------------------------------------------------------- --------- ------- --- ------- ---
Switch : X440G2-24p-10G4 89.78 Normal 0 10-100 110
LIB-SWITCH.8 #
Userlevel 2
Fans are OK and PoE is only 7.2 W, but I think the temperature seems very high. It is probably a temperature taken close to the CPU, but since the m´normal range is 10-100, 90 is very high. Is your CPU utilization high? That may be an entirely different problem, but worth looking into.

/Fredrik
Indeed I don't really understand why it displays such a high temperature.

We are very few connected users (max 5 users), the switch must operate at least 5% of its capacity.

Here's the result of the top command :

Mem: 363692K used, 616716K free, 556K shrd, 14004K buff, 117120K cached
CPU: 4.9% usr 3.7% sys 0.0% nic 91.3% idle 0.0% io 0.0% irq 0.0% sirq
Load average: 4.64 4.32 4.18 2/229 2757
PID PPID USER STAT RSS %RSS CPU %CPU COMMAND
1950 1 root S< 62484 6.3 0 6.0 ./hal
2757 2752 root R 1884 0.1 0 0.7 top -d 3
2050 1 root S 20904 2.1 0 0.3 ./expy -d -m exos.httpd
1968 1 root S 5304 0.5 0 0.3 ./fdb
1648 1 root S 4360 0.4 0 0.3 /exos/bin/epm -t 40 -f /exos/config/epmrc -d /exos/config/epmdprc
2635 1646 root S 3048 0.3 0 0.3 /exos/bin/exsh
2202 2 root DWN 0 0.0 0 0.3 [extrRx0.1:0]
1966 1 root S 6440 0.6 0 0.0 ./vlan
2046 1 root S 57480 5.8 0 0.0 ./policy
1964 1 root S 6972 0.7 0 0.0 ./aaa -t random
1954 1 root S 30616 3.1 0 0.0 ./cliMaster
2032 1 root S 4364 0.4 0 0.0 ./dot1ag
2016 1 root S 5744 0.5 0 0.0 ./etmon
1998 1 root S 4244 0.4 0 0.0 ./rip
2000 1 root S 3260 0.3 0 0.0 ./ripng
1986 1 root S 3508 0.3 0 0.0 ./esrp
2034 1 root S 7196 0.7 0 0.0 ./idMgr
1958 1 root S 6752 0.6 0 0.0 ./snmpMaster
1996 1 root S 4428 0.4 0 0.0 ./msdp
1984 1 root S 3784 0.3 0 0.0 ./eaps
2004 1 root S 4672 0.4 0 0.0 ./acl
2040 1 root S 4152 0.4 0 0.0 ./erps
2006 1 root S 6588 0.6 0 0.0 ./netTools
2052 1 root S 6980 0.7 0 0.0 ./exsshd
2751 2052 root S 6340 0.6 0 0.0 ./exsshd
1946 1 root S 6080 0.6 0 0.0 ./emsServer
2038 1 root S 4820 0.4 0 0.0 ./vsm
2036 1 root S 4912 0.5 0 0.0 ./vmt
2024 1 root S 4340 0.4 0 0.0 ./xmlc
1976 1 root S 4956 0.5 0 0.0 ./lldp
2008 1 root S 5140 0.5 0 0.0 ./netLogin
2058 1 root S 4504 0.4 0 0.0 ./macsec
1994 1 root S 4312 0.4 0 0.0 ./bfd
1992 1 root S 5748 0.5 0 0.0 ./mcmgr
2056 1 root S 4940 0.5 0 0.0 ./nodealias
1990 1 root S 5892 0.6 0 0.0 ./rtmgr update
2012 1 root S 4300 0.4 0 0.0 ./telnetd -e
2044 1 root S 4188 0.4 0 0.0 ./ntp
2010 1 root S 4036 0.4 0 0.0 ./techSupport
1974 1 root S 4804 0.4 0 0.0 ./edp
1988 1 root S 5004 0.5 0 0.0 ./stp
1956 1 root S 5012 0.5 0 0.0 ./cfgmgr
1970 1 root S 4508 0.4 0 0.0 ./elrp
1978 1 root S 4216 0.4 0 0.0 ./lacp
2042 1 root S< 4412 0.4 0 0.0 ./mrp
2062 1 root S 4520 0.4 0 0.0 ./dnsAnalytics
1972 1 root S 3460 0.3 0 0.0 ./elsm
2030 1 root S 3688 0.3 0 0.0 ./hclag
2018 1 root S 3396 0.3 0 0.0 ./ipfix
2054 1 root S 3572 0.3 0 0.0 ./otm
2253 1 root S 3532 0.3 0 0.0 ./poe
2026 1 root S 3756 0.3 0 0.0 ./ipSecurity
2028 1 root S 3504 0.3 0 0.0 ./upm
1980 1 root S 3432 0.3 0 0.0 ./ethoam
1960 1 root S 6952 0.7 0 0.0 ./snmpSubagent
2022 1 root S 7852 0.8 0 0.0 ./xmld
1952 1 root S 3028 0.3 0 0.0 ./nodemgr
1962 1 root S 4956 0.5 0 0.0 ./licMgr
2752 2751 root S 3232 0.3 0 0.0 exsh

LIB-SWITCH.6 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
------------------------------------------------------- --------- ------- --- ------- ---
Switch : X440G2-24p-10G4 88.78 Normal 0 10-100 110

LIB-SWITCH.7 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 3420 RPM
Fan-2: Operational at 3420 RPM
Fan-3: Operational at 3420 RPM
Fan-4: Operational at 3360 RPM
LIB-SWITCH.8 #
Userlevel 7
This is within the "normal" range.
Normal operating temperature range for Summit G2 switches or Summit switches running EXOS 21.x or higher

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