09-18-2013 06:53 PM - edited 03-04-2019 09:04 PM
Dear Friends,
I understand that QoS is designed to provide good service to sesitive traffics like Video and Voice in a Congested link.
We also have implemented the same in our network to get better support for our Voip and other applications.
Last week we had a request from one customer to enable QoS for video at their site inorder for a better Video conferece carrying out this week.
We have configured dscp 63 (in class AF41)at the router, note that the utilization of this link high.
Last day we received a feedback that the video conference session breaks for abt 3 to 4 times and each time they requires to reconnect it.
My believe is QoS should perform well in a congested link, thats what it designed for, right ???
Kindly advice is there any limitations in QoS to support in a congested link or any other changes to notify while enabling QOS for application like Video.
Thanks in advance
Riyas RAsheed
09-19-2013 07:29 AM
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Video can be very bandwidth demanding in short term time intervals. I.e. video's short term bandwidth demand can be much, much higher than its nominal or average bandwidth usage. Real-time video, like video conferencing, also often has tight timing requirements, so when there's a burst, you don't want to delay it.
Ideally you want to treat video conferencing video like LLQ/PQ and have sufficient bandwidth that there's no to very little queuing.
Marking video AF41 can mean much or mean little. Many additional variables apply.
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