This read-create Integer32 defines the Committed Burst Size (CBS) on a QoS policer profile, the token bucket depth that determines how large a burst of traffic at or below the CIR the policer will absorb instantaneously. Administrators tune it to accommodate bursty applications without policing them as out-of-profile. For example, increasing CBS on a profile serving a video-conferencing flow point allows brief traffic spikes to pass without being marked as excess.