Igmp Snooping Robustness Value; Igmpv2 Snooping; Igmp Snooping Querier Configuration - SMC Networks 7824M/VSW - annexe 1 Manual

CLI
9.2.2.3
9.2.3
9.2.3.1
358

IGMP Snooping Robustness Value

The robustness variable allows tuning for the expected packet loss on a network. If a
network is expected to be lossy, the robustness variable may be increased. When receiv-
ing the query message that contains a certain robustness variable from an IGMP snoop-
ing querier, a host returns the report message as many as the specified robustness vari-
able.
To configure the robustness variable, use the following command.
Command
ip igmp snooping robustness-
variable <1-7>
ip igmp snooping vlan VLANS
robustness-variable <1-7>
To delete a specified robustness variable, use the following command.
Command
no ip igmp snooping robust-
ness-variable
no ip igmp snooping
VLANS robustness-variable

IGMPv2 Snooping

IGMP Snooping Querier Configuration

IGMP snooping querier should be used to support IGMP snooping in a VLAN where PIM
and IGMP are not configured.
When the IGMP snooping querier is enabled, the IGMP snooping querier sends out peri-
odic general queries that trigger membership report messages from a host that wants to
receive multicast traffic. The IGMP snooping querier listens to these membership reports
to establish appropriate forwarding.
Enabling IGMP Snooping Querier
To enable the IGMP snooping querier, use the following command.
Command
ip igmp snooping querier [ ad-
dress A.B.C.D ]
ip igmp snooping vlan VLANS
querier [ address A.B.C.D ]
Mode
Configures the robustness variable. (default: 2)
Global
Configures the robustness variable on a VLAN.
VLANS: VLAN ID (1-4094)
Mode
Global Deletes a specified robustness variable.
vlan
Mode
Enables the IGMP snooping querier globally.
A.B.C.D: source address of IGMP snooping query
Global
Enables the IGMP snooping querier on a VLAN.
VLANS: VLAN ID (1-4094)
Management Guide
TigerAccess™ EE
Description
Description
Description
SMC7824M/VSW