Functions of the multicast-source-deny command on an S series switch


For S series switches excluding the S1700, the multicast-source-deny command filters out multicast data packets in a VLAN on a Layer 2 interface. After this command is executed on a Layer 2 interface, multicast data packets received from the specified VLAN are dropped on the interface. By default, an interface is disabled from filtering out multicast data packets sent from specified VLANs.
This command can filter out only multicast data packets transmitted over UDP. Multicast data packets received from the specified VLAN are not dropped on the interface if they do not contain the UDP protocol field.

Other related questions:
Function of the bpdu enable command on S series switch
On an S series switch, except S1700, the bpdu enable command sends BPDUs to the CPU for processing. S series switches: In the versions earlier than V100R006, BPDUs are discarded by default. In V100R006 and later versions, BPDUs are sent to the CPU by default. E series switches: BPDUs are sent to the CPU by default. Run the display bpdu mac-address command to check which packets are determined as BPDUs. The bpdu mac-address command configures packets as BPDUs.

What multicast features do CE series switches support
The right figure shows the multicast features supported by CE series switches.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top