This counts the number of No Request (NR) RAPS PDUs received on the west link of this virtual ring, the routine everything-is-fine message G.8032 nodes exchange when there's no active fault or switch condition. Because NR messages are sent continuously under normal conditions, this counter climbing steadily is actually the expected, healthy behavior; an admin should be concerned by this counter going flat, not increasing, over time, which would indicate the west neighbor has stopped sending RAPS PDUs entirely. For example, if this counter increases by roughly the same amount every polling interval, that's consistent with steady periodic NR PDU transmission from the west neighbor.