52
Item Description
Designated Cost
Indicates the cost of the port participating in the STP topology. Ports with a lower cost
are less likely to be blocked if STP detects loops.
Forward Transitions
Indicates the number of times the port has changed from Forwarding state to Blocking
state.
Configuring IGMP Snooping
This section contains information for configuring IGMP Snooping.
When IGMP Snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes the
incoming packets and determines:
Which ports want to join which Multicast groups.
Which ports have Multicast routers generating IGMP queries.
Which routing protocols are forwarding packets and Multicast traffic.
Ports requesting to join a specific Multicast group issue an IGMP report, specifying that Multicast group is
accepting members. This results in the creation of the Multicast filtering database.
This section contains the following topic:
Defining IGMP Snooping
Defining IGMP Snooping
The IGMP Snooping Setup Page allows network managers to define IGMP Snooping parameters for
VLANs.
Click
Device
IGMP Snooping
Setup
. The IGMP Snooping Setup Page opens.
Figure 90
IGMP Snooping Setup Page
The IGMP Snooping Setup Page contains the following fields:
Summary of Contents for V1905 Series
Page 133: ...128 Index A C D F G I L M N R S ...
Page 135: ......
