[c-nsp] effect of 'mls qos'

[Blake Dunlap]

If you don't know how to set it up, and are not doing your own
management of your qos, then you *really* shouldn't be turning it on.

Some settings are dark, and full of terrors unless you really know
what you're doing.

-Blake

On Mon, Jun 1, 2015 at 2:49 PM, Mike
<mike-cisconsplist at tiedyenetworks.com> wrote:
>
>
> On 06/01/2015 01:51 PM, Peter Rathlev wrote:
>>
>> On Mon, 2015-06-01 at 20:13 +0200, Peter Rathlev wrote:
>>>
>>> You can enable QoS and adjust the defaults to get something noticeably
>>> better than without "mls qos". Take a look at this template we have been
>>> using for some time now:
>>>
>>>    http://ampere.rathlev.dk/3560-3750-QoS-basis-template.txt
>>
>> And if you just want to avoid the problems associated with small buffers
>> and don't care about any actual "QoS" you can just add something like:
>>
>> mls qos queue-set output 1 threshold 1 3100 3100 100 3200
>> mls qos queue-set output 1 threshold 2 3100 3100 100 3200
>> mls qos queue-set output 1 threshold 3 3100 3100 100 3200
>> mls qos queue-set output 1 threshold 4 3100 3100 100 3200
>> mls qos
>>
>> This lets the interfaces use (almost) as much as possible from the
>> common buffers on the switch.
>>
>> The "QoS Overview" chapter of the "Cisco Catalyst 3750 QoS Configuration
>> Examples" document explains the architecture:
>>
>>
>> http://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/91862-cat3750-qos-config.html#topic1
>>
>
> Thank you so much for sharing. And yes, in my particular setup, I don't care
> about actual QoS at this level, but having something was thought to be
> better than nothing. In general I find the QoS setups to be really difficult
> to grasp. I'm going to toy with yours however.
>
> Thanks.
>
>
> Mike-
>
>
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/