IGMP Snooping Window
This window is only available for Catalyst 2950 and 3550 switches. It appears
when you choose Device > IGMP Snooping on the menu bar. You can also
click here to launch it.
The window has these tabs:
Before
you make selections on the tabs, select a device from the Host Names list.
All the choices you make on the tabs will apply to the selected device.
To
change settings:
- The box Enable IGMP Snooping is checked by default. Uncheck it only
if you want to disable IGMP snooping on the entire device.
- The table shows the VLANs that switch ports belong to and the settings for
the VLANs. By default, IGMP snooping is enabled on the VLANs, the Immediate
Leave feature is disabled, and the multicast
router port learning method is PIM-DVMRP. To change any of these defaults,
click Modify and use the Modify IGMP Snooping Settings window.
- When you return to the IGMP Snooping window, click OK.
To add a row to the list (VLAN, group MAC address, and router ports):
- Click Create.
- Use the Create Multicast Group window.
- When you return to the IGMP Snooping window, click OK.
To
modify the Ports entry for a specific VLAN:
- Select the row containing the Ports entry that you want to modify.
- Click Modify and use the Modify Multicast Group window.
- When you return to the IGMP Snooping window,
click OK.
To add a row (VLAN, multicast router ports):
- Click Create.
- Use the Create Multicast Router Ports window.
- When you return to the IGMP Snooping window, click OK.
To modify the Ports entry for a specific VLAN:
- Select the row for the VLAN that you want to modify.
- Click Modify and use the Modify Multicast Router Ports window.
- When you return to the IGMP Snooping window, click OK.