QOS, I want my xbox 360 to have priority

[holden j caufield]

lag makes gaming pretty difficult. Is there any difference to assigning my xbox 360 ip a "premium" vs leaving the xbox at normal and assigning my laptop a "bulk" downgraded priority?

I'm wondering if there is a lot of overhead associated with QOS

 

[Genx87]

With two nodes, I would be surprised if QOS will help you.

 

[mcmilljb]

Maybe save a few watts and turn the laptop off? Can't use both at the same time. I doubt that the laptop is eating up any bandwidth while you're playing.

 

[Eug]

I have an Xbox 360 streaming audio and video from my iMac with Connect360, over a power line network. With large file transfers I can get upwards of around 30 Mbps, but that's average obviously. HD H.264 video playback is usually fine, unless I'm running video over 10 Mbps because in the the worst case scenario the transfer speed likely drops down closer to 10 Mbps. How do I know? Cuz if I play 8 Mbps HD H.264 and 8 Mbps WMV, playback is always smooth as silk, but I can sometimes get a couple of short pauses here and there if the video is 12 Mbps.

The only other usage is family members surfing on the network.

I set my network adapters to prioritize for UDP, but it seems to make no difference whatsoever for video streaming from the iMac to the Xbox 360. Would I just be better off turning off QoS completely? Does QoS have significant overhead?

EDIT:

Maybe not. I just remembered that the Xbox 360's (non-HD DVD) H.264 support is a little bit limited (pun intended ).

http://blogs.msdn.com/xboxteam...ideo-playback-faq.aspx

2. What exactly does the Xbox 360 support for H.264?
Xbox 360 supports the following for H.264:
· File Extensions: .mp4, .m4v, mp4v, .mov
· Containers: MPEG-4, QuickTime
· Video Profiles: Baseline, main, and high (up to Level 4.1) profiles.
· Video Bitrate: 10 Mbps with resolutions of 1920 x 1080 at 30fps. See question number 11 for more information.
· Audio Profiles: 2 channel AAC low complexity (LC)
· Audio Max Bitrate: No restrictions. See question number 11 for more information.

It may be that the Xbox 360 itself is the culprit, and not my network.

 

[Eug]

Confirmed. I brought my laptop over there. 12 Mbps H.264 streams perfectly.

The 10 Mbps limitation is inherent in the Xbox 360. The network is NOT the problem.