Using Multicast Filtering; The Concept Of Multicast Filtering - Weidmuller IE-SW-VL08M Series User Manual

IE-SW-VL08M Series User's Manual
Port
Setting
Enable/Disable
VLAN Table
In 802.1Q VLAN table, you can review the VLAN groups that were created, Joined Access Ports,
and Trunk Ports, and in Port-based VLAN table, you can review the VLAN group and Joined port.
NOTE
The physical network can have a maximum of 64 VLAN settings.

Using Multicast Filtering

Multicast filtering improves the performance of networks that carry multicast traffic. This section
explains multicasts, multicast filtering, and how multicast filtering can be implemented on your
IE-SW-VL08M.

The Concept of Multicast Filtering

What is an IP Multicast?
A multicast is a packet sent by one host to multiple hosts. Only those hosts that belong to a specific
multicast group will receive the multicast. If the network is set up correctly, a multicast can only be
sent to an end-station or a subset of end-stations on a LAN or VLAN that belong to the multicast
group. Multicast group members can be distributed across multiple subnets, so that multicast
transmissions can occur within a campus LAN or over a WAN. In addition, networks that support IP
multicast send only one copy of the desired information across the network until the delivery path
that reaches group members diverges. To make more efficient use of network bandwidth, it is only at
these points that multicast packets are duplicated and forwarded. A multicast packet has a multicast
group address in the destination address field of the packet's IP header.
Description
Set port to specific VLAN Group.
3-52
Featured Functions
Factory Default
Enable
(all ports belong to
VLAN1)