Igmp Troubleshooting - Edge-Core ES4626 User Manual

Switch(Config-If-Vlan1)#ip address 12.1.1.1 255.255.255.0
Switch(Config-If-Vlan1)#ip pim dense-mode
(2) Configure SwitchB:
Switch(Config)#ip pim multicast-routing
Switch(Config)#interface vlan1
Switch(Config-If-Vlan1)#ip address 12.1.1.2 255.255.255.0
Switch(Config-If-Vlan1)#ip pim dense-mode
Switch(Config-If-Vlan1)#exit
Switch(Config)#interface vlan2
Switch(Config-If-Vlan1)#ip address 20.1.1.1 255.255.255.0
Switch(Config-If-Vlan2)#ip pim dense-mode
Switch(Config-If-Vlan2)#ip igmp version 3

20.6.5 IGMP Troubleshooting

In configuring and using IGMP Protocol, IGMP Protocol might not operate normally
caused by physical connection or incorrect configuration. Therefore, user should pay
attention to the following issues:
Firstly to assure that physical connection is correct.
Next, to assure the Protocol of Interface and Link protocol is UP (use show
interface command);
Afterwards, to assure to start a kind of multicast protocol on the interface;
Multicast Protocol requires RPF Check using unicast routing; therefore the
correctness of unicast routing must be assured beforehand.
If all attempts including Check are made but the problems on IGMP can't be solved
yet, then use debug commands such debug ipv6 mld event/packet please, and then copy
DEBUG information in 3 minutes and send to Technology Service Center.
20.6.5.1 Commands for Monitor and debug
20.6.5.1.1 debug igmp event
Command: debug igmp event
no debug igmp event
Function: Enable debugging switch of IGMP event; the "no debug igmp event"
command disenables the debugging switch
Parameter: None
Default: Disabled
Command Mode: Admin Mode
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