ingress MPLS exp bit based traffic shaping

I need some pointers on how to configure a particular qos setup. I have MPLS trffic coming in on ether1:3700 and in it are two VPLS’s that are each mapped to separate egress ethernet ports. The 3700 vlan tag does not have its p-bits marked but the exp bits in the MPLS labels are properly marked. I want to apply a shaping policy to the total ingress interface giving downstream priority to one of the vpls’s over the other because the upstream node is not able to prior to sending to the mikrotik ingress. I think I can use a filter on in interface ether1:3700 and then pass it to a queue tree to shape which packets are which priority out of a 25Mbs total downlink ?

Might anyone be able to offer pointers on how to approach this.

Thanks
Bob

We do QoS quite a bit with MPLS EXP bits with queue trees and we use bridge filters to mark the packets. It is likely not possible with global queue trees, only interface-attached (that is what we use). Therefore, you will need a single egress interface to represent the 25Mbps downlink.

However in your post you mention that you want to shape the ingress interface - unfortunately I do not believe this will work, unless somehow the marked MPLS packets are processed by global queue trees as well. It might be worth a try. The best solution would be to shape the egress on the far end, on the other side of the 25Mbps connection.

Hi @mduchare,

Is there any example that I can have as a reference?


Thanks.