FlowMetrics
This textual convention denotes an enumerated integer-value that represents a set of metrics: 'mdi' This set of metrics consists of the Media Delivery Index (MDI) [RFC4445] 'rtp' This set of metrics consists of data similar to that computed and sent by a RTP client in a RTCP receiver report [RFC3550]. 'ipCbr' This set of metrics complements MDI, measuring the notion of Media Rate Variation (MRV).