This read-only Gauge32 reports the current worst jitter value, in milliseconds, in the send direction for this VPath. An admin monitors this because high jitter, even more than raw latency, degrades voice and video quality, so a rising worst-case jitter figure toward a site is an early warning sign. For example, a spike in this send-direction jitter value coinciding with a reported drop in outbound call quality to that branch confirms the network path is the likely cause.