This object represents the peak burst size (PBS) against which associated traffic streams will be metered. The CBS specifies the maximum burst size that is supported for flows to be considered to be at a medium level of conformance. Typically, this value represents the maximum number of tokens in a token bucket.

This object specifies flow data in bytes per second units such that, for example, a value of 100 equates to a committed information rate of 100 bytes per second.

Peak burst (and rate) information must be present if the qosMeterDataSpecification object has the value peakData(3). This, in turn, requires that high, medium and low conformance actions be specified.