RE:RE:RE:RE:RE:AT&TYour are welcome S7.
https://techblog.comsoc.org/2020/09/28/att-deploys-dis-aggregated-core-router-white-box-with-drivenets-network-cloud-software/
It says the clusters can be horizontally scled to 192 boxes with aggregated bandwidth of 768 Tbps.
Each box contains "40x100G line card system, 10x400G line card system, and a 48x400G fabric system". I presume the ports are used to create a mesh between the cluster nodes as well as connect the clusters together using the (long-haul) fiber-optics interconnects. From what I understand our tech fits well in those internal "intra-cluster" connections.
I knnow it is all speculative, until proven.