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Mysterious Monitoring Gaps on Switch 4 Times a Day

martinezaw
Level 1
Level 1

 

I have an aggregation 3750X stack switch at one of our schools... Multiple IDFs connect to it. It then connects out to our core switch There are I believe 7 switches in the stack.

 

On our monitoring software, 4 times a day, close to the same times  roughly 1AM  7AM 1PM and 7PM. This is just a school so it's not like there are some backups going on. No servers are at this school... Just regular user traffic.

 

I do notice that the Memory I/O stays around 78%. Could that be part of the problem. What could be happening on an interval like that???

 

XXXX-MDF-Stack#sh mem
                Head    Total(b)     Used(b)     Free(b)   Lowest(b)  Largest(b)
 Address      Bytes     Prev     Next Ref     PrevF    NextF Alloc PC  what
Processor    46E5A34   179092736    62550620   116542116   113674304    94536284
      I/O    E000000    16777216    13004616     3772600     2111392     2369804
Driver te    2C00000     4194304          44     4194260     4194260     4194260

Screen Shot 2018-09-27 at 5.09.27 PM.png

sh  ver..

 

XXXX-MDF-Stack uptime is 1 week, 3 days, 8 minutes
System returned to ROM by power-on
System restarted at 17:07:57 EDT Mon Sep 17 2018
System image file is "flash:/c3750e-universalk9-mz.150-1.SE3/c3750e-universalk9-mz.150-1.SE3.bin"


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License Level: lanbase
License Type: Default. No valid license found.
Next reload license Level: lanbase

cisco WS-C3750X-48P (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Processor board ID FDO1526P128
Last reset from power-on
6 Virtual Ethernet interfaces
1 FastEthernet interface
364 Gigabit Ethernet interfaces
14 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 30:E4:DB:FC:A8:80
Motherboard assembly number     : 73-12553-05
Motherboard serial number       : FDO152705VE
Model revision number           : A0
Motherboard revision number     : C0
Model number                    : WS-C3750X-48PF-S
Daughterboard assembly number   : 800-32727-01
Daughterboard serial number     : FDO15270278
System serial number            : FDO1526P128
Top Assembly Part Number        : 800-31324-02
Top Assembly Revision Number    : C0
Version ID                      : V02
CLEI Code Number                : COMJZ00ARB
Hardware Board Revision Number  : 0x03


Switch Ports Model              SW Version            SW Image                 
------ ----- -----              ----------            ----------               
     1 54    WS-C3750X-48       15.0(1)SE3            C3750E-UNIVERSALK9-M     
     2 54    WS-C3750X-48       15.0(1)SE3            C3750E-UNIVERSALK9-M     
     3 54    WS-C3750X-48       15.0(1)SE3            C3750E-UNIVERSALK9-M     
*    4 54    WS-C3750X-48P      15.0(1)SE3            C3750E-UNIVERSALK9-M     
     5 54    WS-C3750X-48       15.0(1)SE3            C3750E-UNIVERSALK9-M     
     6 54    WS-C3750X-48P      15.0(1)SE3            C3750E-UNIVERSALK9-M     
     7 54    WS-C3750X-48P      15.0(1)SE3            C3750E-UNIVERSALK9-M     


Switch 01
---------
Switch Uptime                   : 1 week, 3 days, 8 minutes
Base ethernet MAC Address       : 4C:00:82:20:D1:80
Motherboard assembly number     : 73-12552-10
Motherboard serial number       : FDO17220B62
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3750X-48T-L
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO17212L8T
System serial number            : FDO1721H3V9
Top assembly part number        : 800-31326-08
Top assembly revision number    : B0
Version ID                      : V05
CLEI Code Number                : COMJT00ARE
License Level                   : lanbase
License Type                    : Permanent
Next reboot licensing Level     : lanbase


Switch 02
---------
Switch Uptime                   : 1 week, 3 days, 8 minutes
Base ethernet MAC Address       : 4C:00:82:20:CC:00
Motherboard assembly number     : 73-12552-10
Motherboard serial number       : FDO17220B0X
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3750X-48T-L
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO17212Y6V
System serial number            : FDO1721H3V0
Top assembly part number        : 800-31326-08
Top assembly revision number    : B0
Version ID                      : V05
CLEI Code Number                : COMJT00ARE
License Level                   : lanbase
License Type                    : Permanent
Next reboot licensing Level     : lanbase


Switch 03
---------
Switch Uptime                   : 1 week, 3 days, 8 minutes
Base ethernet MAC Address       : 4C:00:82:20:CD:00
Motherboard assembly number     : 73-12552-10
Motherboard serial number       : FDO17220B17
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3750X-48T-L
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO172200HZ
System serial number            : FDO1721H3V7
Top assembly part number        : 800-31326-08
Top assembly revision number    : B0
Version ID                      : V05
CLEI Code Number                : COMJT00ARE
License Level                   : lanbase
License Type                    : Permanent
Next reboot licensing Level     : lanbase


Switch 05
---------
Switch Uptime                   : 1 week, 3 days, 9 minutes
Base ethernet MAC Address       : 4C:00:82:1C:8C:00
Motherboard assembly number     : 73-12552-10
Motherboard serial number       : FDO172130MP
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3750X-48T-L
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO17212YGA
System serial number            : FDO1721Z319
Top assembly part number        : 800-31326-08
Top assembly revision number    : B0
Version ID                      : V05
CLEI Code Number                : COMJT00ARE
License Level                   : lanbase
License Type                    : Permanent
Next reboot licensing Level     : lanbase
          

Switch 06
---------
Switch Uptime                   : 1 week, 3 days, 9 minutes
Base ethernet MAC Address       : B0:00:B4:B1:91:80
Motherboard assembly number     : 73-12553-11
Motherboard serial number       : FDO18071QPQ
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3750X-48P-L
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO180716Z0
System serial number            : FDO1807Z1P8
Top assembly part number        : 800-31324-09
Top assembly revision number    : B0
Version ID                      : V06
CLEI Code Number                : CMMPS00DRA
License Level                   : lanbase
License Type                    : Permanent
Next reboot licensing Level     : lanbase


Switch 07
---------
Switch Uptime                   : 1 week, 3 days, 1 minute
Base ethernet MAC Address       : E0:5F:B9:C2:35:80
Motherboard assembly number     : 73-12553-04
Motherboard serial number       : FDO144919FV
Model revision number           : A0
Motherboard revision number     : A0
Model number                    : WS-C3750X-48PF-L
Daughterboard assembly number   : 800-32727-01
Daughterboard serial number     : FDO14490HAP
System serial number            : FDO1449R05E
Top assembly part number        : 800-31324-01
Top assembly revision number    : A0
Version ID                      : V01
CLEI Code Number                : COMJZ00ARA
License Level                   : lanbase
License Type                    : Permanent
Next reboot licensing Level     : lanbase

 

 

 

 

 

 

 

 

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