Deployment Guide

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4.4.8 DNOS-OF L3 Multicast Group Entries
DNOS-OF L3 Multicast group entries are of OpenFlow all type. The action buckets describe the interfaces to
which multicast packet replicas are forwarded.
IP multicast packets are forwarded differently, depending on whether they are switched or routed. Packets
must be switched in the VLAN in which they came in and cannot be output to IN_PORT. Packets that are
multicast in other VLANs must be routed and must be allowed to egress via IN_PORT. This difference is
reflected in the actions that are programmed in the action buckets.
Note that any chained DNOS-OF L2 Interface Group entries must be in the same VLAN as the DNOS-OF
L3 Multicast group entry. However chained DNOS-OF L3 Interface Group entries must be in different
VLANs from the DNOS-OF L3 Multicast Group entry, and from each other.