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cisco 1841 reload vs repower

Posted on 2010-11-17
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Last Modified: 2012-05-10
We have a cisco 1841 and previously had a 1720 (I think). On one occasion on each router I have had them nt work properly, and after repowering up, still did not work properly. they both had different versions of IOS. Once I did the reload command, it fixed it. I thought a reload was the same as a power of restart, but I guess not. Can someone please explain this?
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Question by:premiere1
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8 Comments
 
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Expert Comment

by:Don Johnston
ID: 34155732
Reload is the equivalent of Ctl+Alt+Del on your computer. Power to the internal components is not interrupted.

A power cycle is just that. You are removing power from all the components.

I haven't had a situation yet where I needed to power cycle a Cisco device to resolve a problem, but it's probably just a matter of time.  
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Author Comment

by:premiere1
ID: 34157149
Don, it is just the opposite. I NEED to do a reload as a power cycle does not clear the problem. It has happened once each on different routers.
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Expert Comment

by:Don Johnston
ID: 34157798
>Don, it is just the opposite.

No, it's not. I'm not telling you how to solve your issue. I'm simply defining what the actions actually do.

As for your problem, if a power cycle doesn't resolve the problem then I can't imagine how a reload will.
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Author Comment

by:premiere1
ID: 34158353
Don, I did not mean that what you said is the opposite, I meant that my problem is the opposite as a reload solved the problem and not a power off restart. Will it load the same script in both situations? Is it possible that I have something set that says the reload will load a saved version and a power off restart will reload the current running version that may have become corrupted? Sorry if I did not explain the situation clearly. I appreciate your comments. Also, I use the write mem to save my changes.
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Expert Comment

by:Don Johnston
ID: 34158691
>Will it load the same script in both situations?

Yes.

>Is it possible that I have something set that says the reload will load a saved version and a power off restart will reload the current running version that may have become corrupted?

No.

What is the problem that a reload resolves but a power cycle does not?
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Author Comment

by:premiere1
ID: 34158969
I the latest instance, we had a flakey hub. We took the hub offline, but still could not ping anything inside our network. I power cycled the 1841 and it would still not let traffic through. I could ping the router externally, but internally, they could not. I had a similar weird thing a few years ago wit a different router and someone suggested doing a reload. I tried the same thing and now it works.
It is not a problem as I can do the reload, but from what I know about ios, I thought it was the same thing.
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Accepted Solution

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Don Johnston earned 500 total points
ID: 34159584
>but from what I know about ios, I thought it was the same thing.

They are except that a power cycle is more... invasive than a reload.
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Author Comment

by:premiere1
ID: 34190592
That what I thought too. Thanks for all the input.
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