Igmp, Igmp -21, Figure 2-15 igmp dialog -21 – Comtech EF Data CDM-570/L Vipersat Parameter Editor User Manual
Page 37
Chapter
2 -
Using Parameter Editor
2-21
Network
Typically, DiffServ is implemented using exclusively Class Selector DSCP or
exclusively Expedited and Assured Forwarding DSCP. The CDM-570/570L is
fully DiffServ compliant and will work with either DiffServ implementation or
with a combination of both.
IGMP
Note: If the IGMP feature (FAST code) has not been purchased for this
modem, the IGMP menu item will not be displayed.
Selecting the Enable IGMP (Internet Group Management Protocol) box on the
IGMP dialog shown in figure 2-15 enables the receive portion of a modem unit
to use the modem as an IGMP server. The transmit portion of the terminal
utilizes the modem as an IGMP client. The IGMP dialogs configure the unit to
report an interest to join a Multicast group on an IGMP server. IGMP is used to
regulate multicast traffic on a LAN segment to prevent information of no inter-
est from consuming bandwidth on the LAN.
Figure 2-15 IGMP dialog
NOTE