Using the Console Interface

Table 3-28.

IGMP Configuration Screen Fields (continued)

 

 

 

Field

Description

 

 

 

Snooping

Allows you to enable or disable IGMP Snooping.

 

This field affects all VLANs (for example, if you disable Snooping for the VLAN

 

specified in the screen’s VLAN field, Snooping is disabled for ALL VLANs).

 

Default

Enabled

 

Range

Enabled, Disabled

Proxy

Allows the switch to consolidate IGMP Host Membership Reports received on its

 

downstream ports and to generate a consolidated proxy report for forwarding to its

 

upstream neighbor.

 

 

This field affects all VLANs (for example, if you disable Proxy for the VLAN specified

 

in the screen’s VLAN field, Proxy is disabled for ALL VLANs). You cannot set the

 

Proxy field value to Disabled unless the Snooping field value is Enabled.

 

Default

Enabled

 

Range

Enabled, Disabled

Robust Value

Allows you to set the switch to offset expected packet loss on a subnet. If packet

 

losses on a subnet are unacceptably high, the Robust Value field can be increased

 

to a higher value.

 

 

This field affects only the VLAN specified in the screen’s VLAN field (for example, if

 

you change the robust value on the VLAN specified in the screen’s VLAN field, other

 

VLANs are not affected).

 

Default

2

 

Range

1 to 64

Query Time

Allows you to control the number of IGMP messages allowed on the subnet by

 

varying the Query Interval (the Query Interval is the interval between general

 

queries sent by the IP multicast router).

 

This field affects only the VLAN specified in the screen’s VLAN field (for example, if

 

you change the Query Time value field on the VLAN specified in the screen’s VLAN

 

field, other VLANs are not affected).

 

Default

125 seconds

 

Range

1 to 512 seconds

 

 

(continued)

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Nortel Networks 10BASE-T manual Igmp Configuration Screen Fields