Chapter 6 Using Multicast Manager 135Using Optivity Switch Manager, Release 1.1.0.0Sender tabThe Sender tab (Figure 61) displays information about the IGMP Snoop senderdevice.Expiration Time left until this member is aged out. This value isderived from the Robust Value, MaxResponse Time value,and Query Interval. The Query Max Response Interval(obtained from the Queries received) is used as the timerresolution. Increasing the Robust Value also increases theexpiration value.Type Static or dynamic:• Static membership is configured by the user using theMulticast Static window.• Dynamic membership is what the switch learned fromreceiving group reports.An entry can change from static to dynamic if the switchlearns of a membership dynamically through a static port.In this case, the entry is not deleted when the expirationvalue goes to zero; instead, its type goes back to “static.”Table 40 Receiver tab fields (continued)Field Description
