can I disable QoS in switches that have it?

swapjim

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Nov 16, 2015
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I'm looking at buying a gigabit switch and TP-Link TL-SG108 seems nice.

I'm reading on their site that the device has:

802.1p and DSCP QoS enable smooth latency-sensitive traffic such as voice and video, and IGMP Snooping optimizes the Multicast data stream.
Then I go back and check out other similarly priced switches, and a lot of them have some kind of a QoS.

Have I been hiding too long under a rock on Mars? Do switches now come with QoS? What if I don't want the switch to make the decision to prioriotize my traffic? Can I turn this off?
 
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swapjim

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And how does one usually disable it? Is there a physical switch?

If it's a software option, I have a little concern that I might need to pass the option every time power is out, which is something I'd like to avoid.
 

sdifox

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most switches have a cli where you can configure such things and they are stored in nvram. You don't have to set it again after power cycle.

having said that I would look at used commercial switch.
 

swapjim

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Why prefer a used commercial switch over a home switch? (I assume that the switch I refer to is a home one). What will I get from it? Is a $25 switch going to cause issues?
 

sdifox

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Why prefer a used commercial switch over a home switch? (I assume that the switch I refer to is a home one). What will I get from it? Is a $25 switch going to cause issues?

no not really, I just prefer commercial gear :awe: Picked up an used Nortel 5520-48T-PWR for C$100 a while back.
 

JackMDS

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You need a software configuration Utility go to the TP link support and get it.



:cool:
 

swapjim

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Haven't found anything in their website. The 108E model has an accompanying software to configure the switch, but I can't find anything on the 108 model.

I'll ask at their forums.
 

JackMDS

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AFAIK the 108 is Not managed.

The 108E is the managed one, or as they call it E=Easy Smart.



:cool:
 

drebo

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Feb 24, 2006
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It will be "off" by default. More specifically, it'll be unconfigured by default.

Also, as you likely won't have any traffic marked with DSCP, it is pretty much moot anyway.
 

JackMDS

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Tp-Link states "QoS and IGMP Snooping function; Plug and play, no configuration needed".

The Managed version is only $12 more.



:cool:
 

Carson Dyle

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How in the world can you have QoS without any kind of configuration of that QoS? If there is indeed no means of configuration, I'd stay away.

I just bought the TP-LINK TL-SG108E managed switch in September. Works well, although I'm not a big fan of using the required client management application rather than using a simple web management interface. Looks like out of the box QoS is basically disabled on the SG108E. It's port based by default, with all of the ports having the same priority.

* Edit *

Looks like there's currently a $10 rebate on the SG105E and SG108E when purchased from Newegg, Amazon, Tiger Direct and others.

http://images10.newegg.com/uploadfilesfornewegg/rebate/SH/TP-LINK2MIRsNov0115Jan0216cd12.pdf
 
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swapjim

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How in the world can you have QoS without any kind of configuration of that QoS? If there is indeed no means of configuration, I'd stay away.

That's my question too.

I just bought the TP-LINK TL-SG108E managed switch in September. Works well, although I'm not a big fan of using the required client management application rather than using a simple web management interface.

I'm right there with ya. The software requires Windows too. Why the heck would they do that??? Would also settle for telnet or ssh.

Looks like there's currently a $10 rebate on the SG105E and SG108E when purchased from Newegg, Amazon, Tiger Direct and others.

It's a bummer that I don't shop online :-/

The Managed version is only $12 more.

$12 more is no issue but I want to buy from a physical store and availability is an issue. Besides, like Carson Dyle said, a simple web/cli UI is always preferable.

It will be "off" by default. More specifically, it'll be unconfigured by default.

Also, as you likely won't have any traffic marked with DSCP, it is pretty much moot anyway.

You lost me there. It will be "off" by default but how does it get enabled if I can't manage the switch? Automatically?

And I have no idea what DSCP is. I'll google.

*Sigh* This is going nowhere. This switch is claiming that it has QoS, yet no way to configure that. Something is missing. I asked at their forums. Lets see what they say.
 
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Carson Dyle

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Keep in mind that with the SG108E switch you don't have to manage it all. Out of the box it will be a basic switch with no QoS prioritization enabled. Only when you want to get into setting up things like VLANs or QoS, or do some kind of monitoring, would you need to manage it.

(I don't recall, but it may grab an IP address for itself from a local DHCP server. If so, that would be the only difference between it and a dumb switch.)

If you originally had no need or desire for a managed switch or QoS, plug it in and you're done.
 
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Gryz

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Aug 28, 2010
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How in the world can you have QoS without any kind of configuration of that QoS?
There are ways to try and give all applications/devices/users a fair share of the bandwidth. You won't prioritize one stream of traffic over another stream. But it can't happen anymore that one fat stream pushes out all other traffic.

Weighted Fair Queuing is an example of such a system. It's not really QoS, but it's a lot better than nothing.

I can imagine that people have come up with more smart ways to make networks more robust. Even without configuration requirements.
 

JackMDS

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How in the world can you have QoS without any kind of configuration of that QoS? If there is indeed no means of configuration, I'd stay away.

That because you are Enthusiast and your computer Language follows Technology and its standards meaning.

Manufacturer of Entry Level Networking hardware Language is Not Technology it is "marketing".

I am still looking for the 300ft indoor functional Wireless that was "promised to us in many Wireless' Spec. sheets. :eek: - :sneaky: - :\.



:cool:
 

swapjim

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Keep in mind that with the SG108E switch you don't have to manage it all. Out of the box it will be a basic switch with no QoS prioritization enabled. Only when you want to get into setting up things like VLANs or QoS, or do some kind of monitoring, would you need to manage it.

(I don't recall, but it may grab an IP address for itself from a local DHCP server. If so, that would be the only difference between it and a dumb switch.)

If you originally had no need or desire for a managed switch or QoS, plug it in and you're done.

Are you sure that by default it has no QoS at all? Because I'm about to go an buy it...
 

Carson Dyle

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Here's what I see in the configuration utility under QoS, all default settings that I haven't touched. With this screen cap and the manual, you know as much as I do. Under QoS Mode there are two choices: Port Based and 801.2P Based.

With all ports having equal priority, it's effectively disabled. Which is pretty much what you'd expect as the default.

2015-12-01_121337.jpg
 

swapjim

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Nov 16, 2015
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Here's what I see in the configuration utility under QoS, all default settings that I haven't touched. With this screen cap and the manual, you know as much as I do. Under QoS Mode there are two choices: Port Based and 801.2P Based.

With all ports having equal priority, it's effectively disabled. Which is pretty much what you'd expect as the default.

2015-12-01_121337.jpg

Thank you!