This counter records the total number of octets transmitted on a multilink PPP bundle before packet segmentation occurs on the egress path, representing the traffic volume sent out of the egress side of a multilink aggregation for a specific forwarding class. By tracking octets per forwarding class before segmentation, network operators can measure bandwidth consumption patterns and ensure QoS policies allocate proper treatment to different traffic classes. This metric is valuable for capacity planning and verifying that high-priority traffic receives sufficient bandwidth.