Canton 3C16476CS Manual De Usuario

C

HAPTER

 4: C

ONFIGURING

 

THE

 S

WITCH

After all the bridges on the network have determined 
the configuration of their ports, each bridge only 
forwards traffic between the Root Port and the ports 
that are the Designated Bridge Ports for each network 
segment. All other ports are blocked, which means 
that they are prevented from forwarding traffic.

To use spanning tree, choose enabled from the drop 
State down menu, fill in the setup parameters, and 
click Apply.

Figure 34   Spanning Tree Screen

This switch uses IGMP (Internet Group Management 
Protocol) to query for any attached hosts that want to 
receive a specific multicast service. It identifies the 
ports containing hosts requesting to join the service 
and sends data out to those ports only. It then 
propagates the service request up to any neighboring 
multicast switch/router to ensure that it will continue 

to receive the multicast service. This procedure is 
called multicast filtering.

The purpose of IP multicast filtering is to optimize a 
switched network’s performance, so multicast packets 
will only be forwarded to those ports containing 
multicast group hosts or multicast routers/switches, 
instead of flooding traffic to all ports in the subnet 
(VLAN).

Choose enable or disable from the IGMP Snooping 
Mode drop down menu.

Figure 35   IGMP Snooping Setup Screen

Choose enable or disable from the IGMP Query Mode 
drop down menu.

Figure 36   IGMP Query Setup Screen