Specifies the hop index for a traceroute hop. Values for this object with respect to the same traceRouteCtlOwnerIndex and traceRouteCtlTestName MUST start at 1 and increase monotonically. The traceRouteHopsTable keeps the current traceroute path per traceRouteCtlEntry if enabled by setting the corresponding traceRouteCtlCreateHopsEntries to true(1). All hops (traceRouteHopsTable entries) in a traceroute path MUST be updated at the same time when a traceroute operation completes. Care needs to be applied when either a path changes or can't be determined. The initial portion of the path, up to the first hop change, MUST retain the same traceRouteHopsHopIndex values. The remaining portion of the path SHOULD be assigned new traceRouteHopsHopIndex values.