Configuring QoS on a Edge Switch 48 Lite
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@dustinb3403 said in Configuring QoS on a Edge Switch 48 Lite:
Worth mentioning, but these switches have 70 Gbps throughput (which ain't shabby).
Each port is still only 1Gbps. That is where the QoS is important.
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@dustinb3403 said in Configuring QoS on a Edge Switch 48 Lite:
@jaredbusch would you agree that having QoS enabled on everything on the switch is not helpful?
No I do not agree with you. Having QoS enabled is 100% helpful. That is the entire point of the solution.
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@jaredbusch I would only have QoS enabled for specific type of traffic (with DSCP tagging) using blanket QoS has never been helpful in my experience as everything than gets "top priority".
Disagree with me if you want, but tagging specific types of traffic offers better QoS than using blanket functionality.
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@dustinb3403 said in Configuring QoS on a Edge Switch 48 Lite:
@jaredbusch I would only have QoS enabled for specific type of traffic (with DSCP tagging) using blanket QoS has never been helpful in my experience as everything than gets "top priority".
There is no such thing as "blanket QoS". QoS is always something configured. With a GUI wizard, or by hand, but still configured. No wizard I have ever used give all traffic the same priority as that would defeat the purpose of it.
You are arguing in a cirlce with bad information.
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@romo said in Configuring QoS on a Edge Switch 48 Lite:
Has anybody set QoS on the switches? Trying to prioritize VOIP on reported saturated switches. I can see from here https://dl.ubnt.com/guides/edgemax/EdgeSwitch_AdminGuide.pdf#ConfQoS.indd%3AAnchor 1%3A285 the edgeswitches do offersome options but not clear on what works better as I have not done QoS on switches before.
It is all configured in the "Legacy" interface of the Switch. I've never used any of this yet.
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Looking at this all, I would use
Class of Service->IP DSCPto set the various priories.
Then on the interface tab, change each port form the default trust VLAN to trust IP-DSCP
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On the otherhand, if you have a voice only VLAN, leave that all alone and specify the Voice VLAN in the Auto VoIP settings.
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Don't have any vlan set on the the switches, so probably best bet would be
Class of Service->IP DSCPthen right? -
@JaredBusch you've obviously never seen QoS at the Port level for every switch having same exact settings and having to deal with that headache.
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@dustinb3403 said in Configuring QoS on a Edge Switch 48 Lite:
@JaredBusch you've obviously never seen QoS at the Port level for every switch having same exact settings and having to deal with that headache.
Lots of people don't know WTF they are doing and set shit up wrong. That does not invalidate the thing they were setting up. Only their implementation of it.
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@romo said in Configuring QoS on a Edge Switch 48 Lite:
Don't have any vlan set on the the switches, so probably best bet would be
Class of Service->IP DSCPthen right?Yes. Change all the interfaces to trust IP DSCP first. Before you fuck wit the default priorities.
But you do still want to look at verifying saturation.
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@jaredbusch "Lots of people don't know WTF they are doing" Im sometimes one of those people. But I think the problem is due to a lack of proper explanation, training materials and scenarios. Not talking about you specifically but saying in general.
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@krisleslie said in Configuring QoS on a Edge Switch 48 Lite:
@jaredbusch "Lots of people don't know WTF they are doing" Im sometimes one of those people. But I think the problem is due to a lack of proper explanation, training materials and scenarios. Not talking about you specifically but saying in general.
Which is what I was getting at. Setting QoS isn't the fix, tag the traffic you want and set the priority for just that traffic type, not for everything.
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Like for me I'd have to "see" why it isn't the option and the fallout for making a bad decision. I'm a bit of a visual and reader type learner.
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@dustinb3403 said in Configuring QoS on a Edge Switch 48 Lite:
@krisleslie said in Configuring QoS on a Edge Switch 48 Lite:
@jaredbusch "Lots of people don't know WTF they are doing" Im sometimes one of those people. But I think the problem is due to a lack of proper explanation, training materials and scenarios. Not talking about you specifically but saying in general.
Which is what I was getting at. Setting QoS isn't the fix, tag the traffic you want and set the priority for just that traffic type, not for everything.
No, that is not what you were saying.
You were clearing saying thart QoS was useless and had no point.
Also, it is not possible to set priority for only one thing. By setting a priority at all, you automatically create a base priority level and then prioritize above that.
You simply cannot have a priority at all if you do not prioritize everything. That is how it fucking works.
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See for me I don't understand when and where to apply QoS. As one minute your told it's useless the other it's useful. Like what's missing is the context behind the usage. I agree with Jared in that if your enabling it, by that alone it doesn't mean something magical is happening, something specific is.
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@jaredbusch Would the steps be something like this:
- Change the interface configuration to trust IP DSCP,
- Give IP DSCP 46 (Rtp) a traffic class of 7 (any other thing i'd need to set as a higher traffic class?).
- Choose the Queue management type- Taildrop (default) or WRED (any opinion on which one is better)
- Finally set the Interface Queue Drop Precedence, per interface and per queue (Don't understand this) ?
