Cisco Catalyst 3750-E User Manual

24-16
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 24 Configuring IGMP Snooping and MVR
Displaying IGMP Snooping Information
Beginning in privileged EXEC mode, follow these steps to disable IGMP report suppression:
To re-enable IGMP report suppression, use the ip igmp
snooping report-suppression global
configuration command.
Displaying IGMP Snooping Information
You can display IGMP snooping information for dynamically learned and statically configured router
ports and VLAN interfaces. You can also display MAC address multicast entries for a VLAN configured
for IGMP snooping.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
no ip igmp snooping report-suppression Disable IGMP report suppression.
Step 3
end Return to privileged EXEC mode.
Step 4
show ip igmp snooping Verify that IGMP report suppression is disabled.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.
Ta b l e 24-4 Commands for Displaying IGMP Snooping Information
Command Purpose
show ip igmp snooping [vl
an vlan-id] Display the snooping configuration information for all VLANs on the
switch or for a specified VLAN.
(Optional) Enter vl
an vlan-id to display information for a single VLAN.
The VLAN ID range is 1 to 1001 and 1006 to 4094.
show ip igmp snooping groups [c
ount |dynamic
[count] | user [count]]
Display multicast table information for the switch or about a specific
parameter:
• count—Display the total number of entries for the specified
command options instead of the actual entries.
• dynamic—Display entries learned through IGMP snooping.
• user—Display only the user-configured multicast entries.
show ip igmp snooping groups vlan vl
an-id
[i
p_address | count | dynamic [count] |
user[count]]
Display multicast table information for a multicast VLAN or about a
sp
ecific parameter for the VLAN:
• vlan-id—The VLAN ID range is 1 to 1001 and 1006 to 4094.
• count—Display the total number of entries for the specified
command options instead of the actual entries.
• dynamic—Display entries learned through IGMP snooping.
• ip_address—Display characteristics of the multicast group with the
specified group IP address.
• user—Display only the user-configured multicast entries.

Cisco Catalyst 3750-E Specifications

General

Series	Catalyst 3750-E
Switching Capacity	32 Gbps
Stacking Bandwidth	32 Gbps
StackWise Plus	Yes
Layer Support	Layer 3
MAC Address Table Size	12, 000 entries
RAM	256 MB
Flash Memory	64 MB
Memory	256 MB DRAM, 64 MB Flash
Operating Temperature	32 to 113°F (0 to 45°C)
Ports	48 10/100/1000 Ethernet ports
Form Factor	Rack-mountable
Jumbo Frame Support	Yes
Input Voltage	100 to 240 VAC
Storage Temperature	-25 to 70 °C
Relative Humidity	10 to 90% non-condensing