•Monitor and manage multicast group membership for hosts subscribing to IGMP multicast traffic

•Manage new Multicast Filter rules for a Multicast filter ("Multicast Filtering" on page 116)

•Configure IGMP multicast filters and associate them with one or more profile connections

IMPORTANT: Users with server role permissions cannot modify IGMP settings when the VC domain is under VCEM control.

The following table describes the columns within the summary table on the IGMP Settings (IGMP Configuration) screen.

Column name

Description

 

 

Multicast Filter Name

Name of the multicast filter

 

 

Number of Associated

Displays the number of filter rules associated with the filter

Filter Rules

 

Action

Perform edit and delete operations

All Filter Rules

When a filter is not selected, the status (number of rules and labels) of all filters in the

 

domain is displayed. When a filter is selected, the status of that filter is displayed.

The following table describes the available actions in the IGMP Settings (IGMP Configuration) screen. Clicking another link in the pull-down menu or left navigation tree causes current edits that have not been applied to be lost.

Task

Action

 

 

Filter the entries in the

Click Filter, use the pull-down menus to select the filter you want to view, and then click

table

Go.

Edit a filter

Click the Edit link in the Action column, or left-click on the filter row, right-click to display

 

a menu, and then select Edit.

 

 

Define a new filter

Click +, or right-click in the table to display a menu, and then click Add. For more

 

information, see "Add, edit, or delete a multicast filter (on page 117)."

Delete a filter

Click the Delete link in the Action column, left-click on the filter row, right-click to display

 

a menu, and then select Delete. You can also select the checkboxes for the filters you

 

want to delete, and then click Delete. Type in 'delete,' and then click OK.

 

 

Display a summary of a

Select a filter in the table to display all the rules and labels associated with the filter.

specified filter

 

For more information, see "Assigning a filter or filter set to a profile connection (on page 118)."

IGMP Snooping

The IGMP Snooping feature enables VC-Enet modules to monitor (snoop) the IGMP IP multicast membership activities and configure hardware Layer 2 switching behavior of multicast traffic to optimize network resource usage. IGMP v1, v2, and v3 snooping are supported.

The IGMP Snooping idle timeout interval is set to 260 seconds by default. This value is the "Group Membership Interval" value as specified by IGMP v2 specification (RFC2236). For optimum network resource usage, set the interval to match the configuration on the customer network's multicast router settings.

By default, unregistered IGMP multicast traffic traversing VC-Enet modules is flooded on the configured Ethernet network. To prevent flooding, select the Prevent flooding of unregistered multicast traffic option. Unregistered multicast traffic from uplinks is dropped and traffic from the server ports is redirected to the active uplink port. IGMP Snooping must be enabled to modify this setting.

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