This OID stores the high-order 32 bits of the persistent cell-encoding counter for side B, representing cells converted from Frame Relay to ATM on the B endpoint since the counter was manually reset, with values 0 to 2,147,483,647. A network engineer would track this to maintain a permanent record of B-side outbound cell volume, independent of any service interruptions or equipment restarts. If this high-order value reads 1,750,000, it confirms that at least 1.75 billion cells have been encoded on the B endpoint in the current odometer cycle.