I was doing some searching around for any details regarding running a 3rd party VoIP service over Uverse and whether or not marking the traffic with DSCP would actually provide any benefit through the 2Wire 3801 I have. Basically, what I am trying to determine is if the 3801 will actually obey marked traffic coming inbound to one of its ethernet ports or will it just clear the DSCP marking and ignore?
My assumption is that the 3801 is marking all of its natively generated AT&T SIP control traffic as DSCP 26 and RTP traffic for voice calls as EF or DSCP 46 so that it does not get disrupted by someone watching TV and/or someone saturating the link with a large download etc. If I setup a VoIP connection behind my own router and mark the traffic in the standard manner will the 3801 actually queue the traffic appropriately or is it subject to jitter and delay etc.? Or, alternatively, are there specific non-standard DSCP markings that it will obey?
Obviously, as long as I have all my endpoints behind my own router, I can at least provide queue control at that point. I am just curious about how the 3801 behaves by default, seeing as there is no ability to manage or configure any QoS configuration on the 3801.
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Scott, CCIE #14618 Routing & Switching
http://rolande.wordpress.com/
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