This read-only 64-bit counter tallies the total bytes the metering function marked yellow, meaning they exceeded the committed rate but stayed within an excess allowance, for this counter group. A rising count signals the group's traffic is bursting above its guaranteed rate, which admins use to decide whether to raise the committed rate or accept the marked-down treatment those bytes receive. For instance, if nbTcGroupReslMeteringYellows grows steadily during business hours, the admin may increase the group's committed rate to avoid yellow-marked traffic being dropped under congestion.