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140 CHAPTER 16: MULTICAST CONFIGURATION GUIDE
Verifying the configuration
Check the reception of multicast stream for multicast group 224.1.1.1 on Host A,
and take the following steps to verify the configurations made on the switches.
1 View the information on Switch B
# View the IGMP packet statistics on Switch B.
<SwitchB> display igmp-snooping statistics
Received IGMP general query packet(s) number:16.
Received IGMP specific query packet(s) number:3.
Received IGMP V1 report packet(s) number:0.
Received IGMP V2 report packet(s) number:53.
Received IGMP leave packet(s) number:1.
Received error IGMP packet(s) number:0.
Sent IGMP specific query packet(s) number:1.
Switch B has received IGMP general queries from the querier and IGMP reports
from receivers.
# View the multicast group information on Switch B.
<Switch B> display igmp-snooping group
Total 1 IP Group(s).
Total 1 MAC Group(s).
Vlan(id):100.
Total 1 IP Group(s).
Total 1 MAC Group(s).
Router port(s):Ethernet1/0/1
IP group(s):the following ip group(s) match to one mac group.
IP group address:224.1.1.1
Host port(s):Ethernet1/0/2
MAC group(s):
MAC group address:0100-5e7f-fffe
Host port(s):Ethernet1/0/2
As shown above, a multicast group entry for the multicast group 224.1.1.1 has
been created on Switch A, with Ethernet 1/0/1 as the router port and Ethernet
1/0/2 as the member port.
2 View the information on Switch A
# View the IGMP packet statistics on Switch A.
<SwitchA> display igmp-snooping statistics
Received IGMP general query packet(s) number:0.
Received IGMP specific query packet(s) number:0.
Received IGMP V1 report packet(s) number:0.
Received IGMP V2 report packet(s) number:53.
Received IGMP leave packet(s) number:1.
Received error IGMP packet(s) number:0.
Sent IGMP specific query packet(s) number:1.
Switch A receives IGMP reports from the receivers.
# View the multicast group information on Switch A.