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
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