Our customers are experiencing bad call quality and I need to determine where to apply a QoS policy to protect the voice traffic. We have an MPLS DS3 circuit to our provider and a VRF for each customer. I need to apply the policy to traffic destined to the customers through the DS3 circuit. Each customer has their own loopback interface which I associated to their VRF. When I tried to apply a policy, the router said it can only be applied in the outbound direction:
The outbound interface is a DS3 and I need to apply a separate QoS policy for each VRF since different customers may have a different amount of bandwidth dedicated for voice. I don't see a way to do this through the DS3. How would this be done?
I have reviewed the thread you posted, however, on the DS3 facing link, how would it help to create classes for each marking? We have QoS applied on all CE devices for traffic inbound from customers and outside callers hear customer just fine.
Since customers are hearing the bad call quality, it must be because of traffic destined to the customer. Traffic comes in through a Gigabit interface and exits through a 45Mb DS3 but it first gets routed through the appropriate VRF/loopback interface. I need a way to apply QoS on the loopback interfaces so that voice traffic going back to the customers gets prioritized. If I try to apply an outbound QoS policy on the interface, it gives me an error as well:
Sprint is the one who manages the other side of the DS3 link and I they will not be of any help to resolve the bad call quality.
I do have QoS applied on the CE routers at customer locations and outside callers can hear customers fine.
Is there any way at all to apply a QoS policy on the Serial interface and match traffic from my SIP server or MPLS bits after mapping DSCP? I think I need to focus on this part sice this is the only place to apply a policy for my voice. If you have any ideas, I would greatly appreciate it. Thank you.
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