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Configuring Multicast

April 16, 2009 Page 15 of 32

Configuring Multicast

Thissectionprovidesthef ollowinginformationaboutconfiguringmulticastonEnterasysMatrix

N‐Series,SecureStack,D‐Series,G‐Series,andI‐Seriesdevices.

Configuring IGMP

IGMPisconfiguredinswitchmodeonEnterasysMatrixN‐Seriesdevices.OnSecureStack,

D‐Series,G‐Series,and I‐Seriesdevices,IGMPcanbeconfiguredindependentlyattheswitchlevel

(Layer2)forIGMPsnooping.OnSecureStackC2andC3devicesand G‐Seriesdevices,IGMPcan

alsobeconfigured

attherouterlevel(Layer3)fordetermininghostmembershipondirectly

attachedsubnets.AtLayer2,IGMPcanbeenabledforVLANs,regardlessofwhetheritisenabled

onroutedinterfaces.If,however,IGM P isenabledonaroutedinterface,andtheroutedinterface

isaroutedVLAN,then

IGMPmustalsobeenabledattheswitchlevel.

IGMP Configuration Commands

Table 2liststheIGMPconfigurationcommandsforEnterasysMatrixN‐Seriesdevices.

For information about... Refer to page...

Configuring IGMP 15

Configuring DVMRP 20

Configuring PIM 24

Note: For information on Enterasys Matrix X-Series support, refer to the Enterasys Matrix X Secure

Core Router Configuration Guide.

Table 2 IGMP Configuration Commands (Enterasys Matrix N-Series)

Task Command

Enable IGMP on one or more VLANs. set igmp enable vlan-list

Disable IGMP on one or more VLANs. set igmp disable vlan-list

Enable IGMP querying on one or more VLANs. set igmp query-enable vlan-list

Disable IGMP querying on one or more VLANs. set igmp query-disable vlan-list

Determine what action to take with multicast frames

when the multicast group table is full.

set igmp grp-full-action action

Configure IGMP settings on one or more VLANs. set igmp config vlan-list {[query-

interval query-interval] [igmp-version

igmpversion]

[max-resp-time max-resp-time]

[robustness robustness] [last-mem-int

last-mem-int]

Remove IGMP configuration settings for one or

more VLANs.

set igmp delete vlan-list

Create a new static IGMP entry or add one or more

new ports to an existing entry.

set igmp add-static group vlan-list

[modify] [include-ports] [exclude-

ports]