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auto discovery qos

Posted on 2014-02-22
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I read the Ciscopress book for TSHOOT and it said that before running autoqos, you need to run auto discovery qos 3 to 4 days.. Is that true? I have an Cisco environment with 2960s and 3750s. Thanks
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Question by:leblanc
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by:Craig Beck
Craig Beck earned 1332 total points
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You don't have to run discovery to use Auto-QoS, but it would help if you want to tune it somewhat to your particular deployment.
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Soulja earned 668 total points
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Yes, you want to run auto discovery for several days so that it can track your traffic patterns. This way when auto qos is applied, it would configure the appropriate settings for your environment. Highly suggested.
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by:leblanc
ID: 39881398
That will be a problem because I have to configure in my office first before shipping to the remote locations and it has to be in production.
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by:Soulja
ID: 39882615
You can't access the switch when it's in the remote location?
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by:leblanc
ID: 39890738
I can. But the building is a new building and the network has to be up ad running before the servers can go in. But once the servers are going in, business will start. So I cannot have my switches run autodiscovery for 2 days.
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by:Soulja
ID: 39890784
I guess I don't understand why that is an issue. Autodiscovery won't hinder the network.  That's the whole point of running it on your live network.
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by:leblanc
ID: 39890964
But don't you want to tun autodiscovery when you have all applications up and running.
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by:Craig Beck
ID: 39891318
Yes, running autodiscovery on a dumb network won't help.  You need to do it when the network is in use.
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by:leblanc
ID: 39892200
From my previous post, I meant you don't want to run autodiscovery when no applications are up and running :)
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by:Soulja
ID: 39892296
Craig is correct. If nothing is going on. There is no point to run it. When you stated you were sending it to a remote office. My assumption was the office was already in production and you were just adding this switch.
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by:leblanc
ID: 39893659
Sure. But I did not know that autodiscovery is a requirement before running autoQoS.
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by:Craig Beck
Craig Beck earned 1332 total points
ID: 39894279
As I said in my first post, it's not a mandatory requirement, but it is something you'd want to do.

Sure you can turn AutoQoS on, but it won't work optimally without autodiscovery.

It's the same principle as many other technologies - STP will work if you turn it on, but it might not be optimal.
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