We are a little bit confuse about MLAG, PFC and RDMA (RoCe) on a stretch.
We have 4 x SN2010-Spectrum-Switches which we want to connect redundantly with our two Hyper-V-Cluster in a stretch-modus with ConnectX-4 -Cards each Server.
2 switches of each site should run in a HA Modus, therefore we need MLAG of each pair.
As Mellanox-Docs like https://community.mellanox.com/s/article/how-to-configure-mlag-on-mellanox-switches we have to enable PFC globally. OK
For Hyper-V with RDMA and switch-embedded-teaming under Windows 2016 we need PFC too, but as MLX-Docs https://community.mellanox.com/s/article/how-to-enable-pfc-on-mellanox-switches--spectrum-x with priority (e.g.) 4 desired on two ports over the switch-pair.
Now, do we have to configure the priority of each MLAG-Switch-Pair for PFC via IPL?
How we have to configure PFC-Priority in the trunk ( in our below scenario) between the two MLAGs-Domain ?
Thanks for your help in advance