problem with switch 2960

[amrashraf1]

ihave 4 switch 2960 

WS-C2960L-24TS-LL

Version 15.2(6r)E1

i have 4 floor in every floor have one of 2960 and all of them conncted with core switch 3650 but 

switches 2960 some times need restart often one restart per day what is the poblem 

[amrashraf1]

u mean need configration for this switch 

[MHM Cisco World]

show controllers cpu-interface

this show us if there is broadcast storm or not in SW, can you share the output?

[amrashraf1]

this is on core sw

[amrashraf1]

any reply if there is broad cast

[MHM Cisco World]

Hi friend 

sorry for late reply, i check the info you send just add this command under each VLAN and se if the SW will hung anymore or not.

no ip redirects

[amrashraf1]

#no ip redirect 

what this command make 

and when i send output of command                      #show controllers cpu-interface

u see bc or what ?? 

[Leo Laohoo]

If this switch is still rebooting after a firmware upgrade, then I suspect the issue is the power source. 
Here is an easy test, plug another switch to the same power source and observe if the 2nd switch reboots the same time as the original one.

[MHM Cisco World]

do show controller cpu-interface 

inter the command 

on ip redirect 

do show controller cpu-interface again and again check see if the counter of ICMP redirect increase 

[MHM Cisco World]

this output, 

there is increment in icmp redirect and this output as you mention after reboot SW.

no ip redirect prevent SW send icmp redirect message to host when there is other path.

I see broadcast but the number 230000 is not near Forus Traffic 22000 "Forus traffic mean the traffic handle by software not hardware of SW" so i think it is normal.

[amrashraf1]

thank u very much i will try everything u said it and iwill tell u 

[MHM Cisco World · Accepted solution]

first you are so so welcome 

second update me when you can 

good luck friend

[amrashraf1]

I thinnk my build have unstable electricity

The electricity flapping every day but the switch dosnot restart. flapping is very fast  so my switch dont turn off this may cause hang my switch true !!!!   but i upgraded all switches to see if the ios version is the problem or not