Is it C6500 series and C4500 series necessary need reload every year?
Can you inform me, i need explaint to my boss due to maintenance schedule.
No problem, glad to help.
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You are correct, you do not need to reboot these switches as a maintneance task. Just rebooting the switches will not gain you anything with performance. The only time you would need to reboot these is is you were upgrading the IOS.
I hope this helps.
sorry if I have been unclear
as Jon and Mike have noted there is no recommendation/need to reload a switch of this category every year.
If you need to power off them for maintanance on the electrical power grid you can do it, but I recommend to do not suggest or imply that this is a needed /recommended step in networking industry.
It is not.
To be noted that if the devices have two power supplies connected to different lines they can stay up with only one PS (some C4000 models have 3 power supplies that changes slightly). So working on one power line per time allows for keeping up the devices.
And this is what is commonly done.
golden rule: don't touch what is working well for your own sake.
Hope to help
If it isn't broke then don't fix it. 6500/4500 switches are designed to be highly available so there is no need to reboot if there is no problem. Key thing with all switches is to keep records of what has been changed in the configuration since the last reload/reboot.
I have seen situations where a perfectly working switch has been rebooted and then it has been down for hours. Do you or your boss really want to explain to the CEO why you rebooted a perfectly good working switch ?