Comtech EF Data CDD-880, Installation And Operation Manual

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CDD-880 Multi Receiver Router MN-CDD880
Appendix C Revision 2
C–8
If required, you can create QoS rules with “Filter All” enabled to filter undesired Multicast from
traversing the satellite network for both the CTOG-250 and the CDM-840.
C.5.1 Multicast Management/Routed Behavior (No Change)
In both BPM and Router Modes, Multicast packets arriving at the Management (routed) port of
the CTOG-250 and CDM-840 must be configured to be transmitted to the WAN by adding a
Multicast-specific route table entry with a “/32” subnet.
Packets arriving at the CDM-840 downlink pass out the CDM-840 Ethernet port based upon the
following criteria (configurable via NetVue or the Web page for each CDM-840):
•
Downlink (outbound from the Hub Segment) Multicast All – All downlink outbound
Multicast packets pass to the Traffic LAN interface of the CDM-840 unit.
•
Use IGMP (Internet Group Management Protocol) – Only remotes that have IGMP clients
enabled with the Multicast address pass the Multicast packet to the CDM-840’s LAN port.
C.6 BPM and Group QoS with Outbound ACM/VCM
Figure E-7. Configuring VLAN to QoS Group Mapping (CTOG-250 shown)
ACM/VCM on the Outbound carrier works with BPM by seamlessly matching packets to the
correct remote site. While no configuration is required, you have the ability to first use a VLAN
ID, and then use a Subnet/Mask, to associate a packet to a QoS Group. This functionality allows
you to partition the Outbound Carrier capacity.