>in a typical setup, with Clos fabrics everywhere You choose a single spine switch to carry the multicast messages destined to the process group. The paper als

>in a typical setup, with Clos fabrics everywhere You choose a single spine switch to carry the multicast messages destined to the process group. The paper also explicitly notes that different process groups need not to share the sequencer. >when your redundancy group is spread across different geographical locations The paper applicability is limited to data center networks with programmable network switching hardware.