Chapter 6 Using Multicast Manager 147Using Optivity Switch Manager, Release 1.1.0.0Figure 69 Globals tabTable 47 describes the fields in the Globals tab.Table 47 Globals tab fieldsField DescriptionEnable Whether DVMRP is enabled (true) or disabled (false) onthe switch.UpdateInterval Periodically each multicast router advertises routinginformation on each DVMRP interface, using the DVMRPexport message. This field shows the time interval (inseconds) between DMVRP updates. The range is from 10to 2000 with a default of 60. In DVMRPv3, this variable isalso known as the Route Report Interval.