Command Reference Guide
N8406-022A 1Gb Intelligent L2 Switch Command Reference Guide (ISCLI)  108 
IGMP Snooping maintenance 
The following table describes the IGMP Snooping Maintenance commands. 
Table 126 IGMP Snooping Maintenance commands 
Command 
Usage 
show ip igmp groups address <IP 
address> 
Shows a single IGMP Multicast group by IP address. 
Command mode: All except User EXEC 
show ip igmp groups vlan <1-4094> 
Shows IGMP Multicast groups on a single VLAN. 
Command mode: All except User EXEC 
show ip igmp groups interface <port 
number> 
Shows IGMP Multicast groups on a single port. 
Command mode: All except User EXEC 
show ip igmp groups 
Shows all IGMP Multicast groups. 
Command mode: All except User EXEC 
clear ip igmp snoop 
Clears IGMP Multicast data from switch memory. 
Command mode: All except User EXEC 
IGMP Mrouter maintenance 
The following table describes the IGMP Multicast Routers Maintenance commands. 
Table 127 IGMP Multicast Group Maintenance commands 
Command 
Usage 
show ip igmp groups vlan <1-4094> 
Shows IGMP Multicast groups on a single VLAN. 
Command mode: All except User EXEC 
show ip igmp mrouter 
Shows all IGMP Multicast routers. 
Command mode: All except User EXEC 
clear ip igmp mrouter 
Clears IGMP Multicast router data from switch memory. 
Command mode: All except User EXEC 
Technical support dump 
show tech-support 
Command mode: All 
Use the dump command to dump all switch information, statistics, and configuration for technical support. 
If you want to capture dump data to a file, set the communication software on your workstation to capture session 
data prior to issuing the dump commands. 
FTP/TFTP technical support dump put 
Use this command to put (save) the technical support dump to a FTPTFTP server. 
To save dump information via TFTP, at the prompt, enter: 
Switch# copy tech-support tftp 
or 
To save dump information via FTP, at the prompt, enter: 
Switch# copy tech-support ftp 
The system prompts you to enter the server IP address or hostname, and the target dump file name. 










