65 pts.
 Limiting bandwidth for streaming online audio/video
We have a T1 that was overcrowded by streaming radios,videos youtube, etc. as soon as we installed a fancy new 3Com Baseline Plus Switch with QoS. It was giving higher priority on the parasyte traffic (video/radio) than the legit (http/ftp). We also have a couple of IP Phones that we hardly use. Is there a way to isolate the online streaming traffic from all users and cap it at a set bandwidth? We also have a Cisco 1700 router. alternatively I am looking for a way to identify those packets, in case I have to filter them with ACS. Where can I find a reference on the "DSCP to queue" and "CoS to queue" values for the different types of packets(i.e. put low priority on a you-tube video, so it doesn't crowd out the rest of the traffic at peak times, but plays ok off peak). Don't laugh, but I am mostly looking for the opposite of QoS (except for the actual ip phone traffic)

Software/Hardware used:
ASKED: January 31, 2008  9:56 PM
UPDATED: January 31, 2008  11:28 PM

Answer Wiki:
Your bottleneck is at the ISP facing router. That's where I would do your filtering and queuing. Since you only have a couple of phones, I would concentrate on cleaning up your traffic first. Configure/show nbar stats to see whats clogging up your pipe. Then, on the router, set up your class-map for the traffic you wont to limit or "police" class-map VoIP ! class-map match-any WasteofBandwidth match protocol gnutella match protocol kazaa ... ... ! Then you need to drop any of the matching packets or enforce a threshold. policy-map WasteofBandwidth class WasteofBandwidth (drop | police {bandwidth-limit}) make sure you enable the policy on one of your interfaces eg. interface fast0/1 service-policy out WasteofBandwidth
Last Wiki Answer Submitted:  January 31, 2008  11:28 pm  by  Xanader   410 pts.
All Answer Wiki Contributors:  Xanader   410 pts.
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