PPT Slide
An adjacency message with PType != 0 and Code = SYN or SYNACKfrom controller should be treated as a partition request.An adjacency message with PType != 0 and Code = SYNACK or ACKfrom switch should be treated as a partition assignment.An adjacency message with PType != 0 and Code = RSTACK fromswitch should be treated as a partition unavailability.
Fields in Adjacency Message with Partition Information
PType behavior in Adjacency State Machine
Contributed by Bun Mizuhara