On (2014-08-18 11:15 -0700), Scott Voll wrote: Hi Scott,
> If I wanted to change my threshold number 2, Example: > > *mls qos queue-set output 1 threshold 2 3100 3100 100 3200* > > Would that cause me any issues with Voice quality? Small catalysts are very demanding platforms on getting QoS ~right, I would recommend having lab where you can inject 'bad' and 'good' traffic and monitor result. One good/cheap way would be to loop TX+RX on one phone, inject radio to another phone TX and connect RX to speakers, and listen to radio through the phonecall while labbing QoS, then congest the connections. But to answer your question, it depends on your output map values and what value you are planning to change it into. By default all traffic is mapped to threshold 1, so it wouldn't have any effect. Thresholds are drop profiles sharing same queue, one application could be to discriminate two types of best-effort (internal and external?) and give external best-effort much more aggressive drop-profile (threshold) in BE queue. There is one priority queue in 3750 where you might want to put your voice traffic and set 'priority-queue out' on interface. Remember also that 3750 is quite sensitive to microbursts so by default just turning up mls qos you're likely to see poorer quality than without it, there is good explanation[0] available how actually 'mls qos' can give even BE better behaviour than without 'mls qos'. [0] https://supportforums.cisco.com/docs/DOC-8093 -- ++ytti _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
