Allworx PowerFlex P810, User Manual

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PowerFlex
8/24/48 Port GbE PoE Managed Switch User’s Guide
4.6 IGMP Snooping
The function is used to enable the multicast groups to forward the multicast packets to the member
ports and avoids wasting the bandwidth while IP multicast packets are running over the network. This is
because a switch that does not support IGMP or IGMP Snooping can not tell a multicast packet from a
broadcast packet and treats both all as broadcast packets.
A switch that supports IGMP Snooping with the functions of query, report and leave, a type of packet
exchanged between IP Multicast Router/Switch and IP Multicast Host, can update the information of the
Multicast table when a member (port) joins or leaves an IP Multicast Destination Address. With this
function, once a switch receives an IP multicast packet, it will forward the packets only to members who
have already joined the specified IP multicast group.
The IGMP Snooping discards the packets, if the user transmits multicast packets to the multicast group
not built up in advance. IGMP proxy or snooping enabled on the switch enables it to connect to a router
closer to the root of the tree. This interface is the upstream interface. The router on the upstream
interface should be running IGMP.
4.6.1 Basic Configuration
This section describes how to set the basic IGMP snooping on the switch.
To configure the IGMP Snooping parameters via the web interface:
1. Navigate to Configuration > IGMP Snooping > Basic Configuration .
2. Check the Snooping Enabled box to enable IGMP snooping globally on the switch.
3. Check the port that has to be set as the Router Port and enable/ disable the Fast Leave function on the
ports.
4. Use the drop-down menu to set the Throttling parameter.
5. Click Apply or click Reset to cancel the changes and revert to previously saved values. 0.
Toll Free 1-866- ALLWORX • 585 -421- 3850 • www.allworx.com
Revised: October 30, 2013
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