Specifies the hop index for a traceroute hop. Values for this object with respect to the same zhoneTraceRouteCtlOwnerIndex and zhoneTraceRouteCtlTestName MUST start at 1 and increase monotonically. The zhoneTraceRouteHopsTable keeps the current traceroute path per zhoneTraceRouteCtlEntry if enabled by setting the corresponding zhoneTraceRouteCtlCreateHopsEntries to true(1). All hops (zhoneTraceRouteHopsTable 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 zhoneTraceRouteHopsHopIndex values. The remaining portion of the path SHOULD be assigned new zhoneTraceRouteHopsHopIndex values.