User Manual

Table Of Contents
48-40
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>.
48.8.3 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 Ethernet1/0/10 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 ethernet1/0/5
EC(Config-If-Ethernet1/0/5)#ip multicast source-control access-group 5000
EC(config)#interface ethernet1/0/10
EC(Config-If-Ethernet1/0/10)#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
Switch(config)#multicast destination-control
Switch(config)#ip multicast destination-control 10.0.0.0/8 access-group 6000
In this way, users of this network segment can only join groups other than 238.0.0.0/8.
3 Multicast strategy