PLANET WGSW-50040 - Manual (Page 157)

21-14
21.2 DCSCM
21.2.1 Introduction to DCSCM
DCSCM (Destination control and source control multicast) technology mainly includes three aspects, i.e.
Multicast Packet Source Controllable, Multicast User Controllable and Service-Oriented Priority Strategy
Multicast.
The Multicast Packet Source Controllable technology of Security Controllable Multicast technology is mainly
processed in the following manners:
1． On the edge switch, if source under-control multicast is configured, then only multicast data from
specified group of specified source can pass.
2． For RP switch in the core of PIM-SM, for REGISTER information out of specified source and
specified group, REGISTER_STOP is transmitted directly and table entry is not allowed to set up.
(This task is implemented in PIM-SM model).
The implement of Multicast User Controllable technology of Security Controllable Multicast technology is
based on the control over IGMP report message sent out by the user, thus the model being controlled is
IGMP snooping and IGMP model, of which the control logic includes the following three, i.e. to take control
based on VLAN+MAC address transmitting packets, to take control based on IP address of transmitting
packets and to take control based on the port where messages enter, in which IGMP snooping can use the
above three methods to take control simultaneously, while since IGMP model is located at layer 3, it only
takes control over the IP address transmitting packets .
The Service-Oriented Priority Strategy Multicast of Security Controllable technology adopts the following
mode: for multicast data in limit range, set the priority specified by the user at the join-in end so that data can
be sent in a higher priority on TRUNK port, consequently guarantee the transmission is processed in
user-specified priority in the entire network.
21.2.2 DCSCM Configuration Task List
1. Source Control Configuration
2. Destination Control Configuration
3. Multicast Strategy Configuration
1． Source Control Configuration
Source Control Configuration has three parts, of which the first is to enable source control. The command of
source control is as follows:
Command Explanation
Global Configuration Mode