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The Miscellaneous Node (MN) is responsible for handling the following features:
Barrier or DVM transactions that are handled by the MN do not target the memory address space or the I/O address space. Each of these must be multicast or broadcast to peer RNs or HNs, and responses must be aggregated.
Although the MN is responsible for broadcasting and gathering responses, the requesting node sends a single request to the MN and receives a single completion response from the MN.
The MN includes the following dedicated ports: