RSTP Bridge Overview:
Displays the bridge ID, topology
and root bridge ID specified by the system, including Hello
time, maximum aging time and forwarding delay setting.
RSTP Port Status:
Displays the P2P port, protocol and
port state specified by the system, including path cost
and edge port settings.
3.11 IGMP Snooping
IGMP Snooping is used to implement dynamic registration
of L2 multicast on the switch. To achieve L2 multicast
through the IGMP Snooping function, you need to make
sure IGMP protocol is implemented on the host and
router side. The switch only snoops into different types of
IGMP messages transmitted by the host and router, to
dynamically maintain the L2 multicast group. Usually,
multicast registration on this switch does not affect the
setting of other switches. The switch transmits the IGMP
query message and receives the IGMP response from the
host. Based on the receiving port, VLAN ID and multicast
of such IGMP packets, the switch maintains a multicast
group. After that, it forwards such IGMP packets. Only
the ports included in a multicast group can receive the
multicast data stream. In this way, the network traffic is
reduced and network bandwidth is saved.
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