PLANET WGSW-50040 - Manual (Page 160)

21-17
3． Multicast Strategy Configuration
Multicast Strategy uses the manner of specifying priority for specified multicast data to achieve and guarantee
the effects the specific user requires. It is noticeable that multicast data can not get a special care all along
unless the data are transmitted at TRUNK port. The configuration is very simple, it has only one command, i.e.
to set priority for the specified multicast. The commands are as follows:
Command Explanation
Global Configuration Mode
[no] ip multicast policy <IPADDRESS/M>
<IPADDRESS/M> cos <priority>
Configure multicast strategy, specify
priority for sources and groups in
specific range, and the range is <0-7>.
21.2.3 DCSCM Configuration Examples
1． Source Control
In order to prevent an Edge Switch from putting out multicast data ad asbitsium, we configure Edge Switch so
that only the switch at port Ethernet1/5 is allowed to transmit multicast, and the data group must be 225.1.2.3.
Also, switch connected up to port Ethernet1/10 can transmit multicast data without any limit, and we can make
the following configuration.
EC(config)#access-list 5000 permit ip any host 225.1.2.3
EC(config)#access-list 5001 permit ip any any
EC(config)#ip multicast source-control
EC(config)#interface ethernet1/5
EC(Config-If-Ethernet1/5)#ip multicast source-control access-group 5000
EC(config)#interface ethernet1/10
EC(Config-If-Ethernet1/10)#ip multicast source-control access-group 5001
2． Destination Control
We want to limit users with address in 10.0.0.0/8 network segment from entering the group of 238.0.0.0/8, so
we can make the following configuration:
Firstly enable IGMP snooping in the VLAN it is located (Here it is assumed to be in VLAN2)
EC(config)#ip igmp snooping
EC(config)#ip igmp snooping vlan 2
After that, configure relative destination control access-list, and configure specified IP address to use that
access-list.
Switch(config)#access-list 6000 deny ip any 238.0.0.0 0.255.255.255
Switch(config)#access-list 6000 permit ip any any