Addendum

ManualsBrandsDell ManualsComputer equipmentForce10 Z9000

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Command

Modes

INTERFACE

Command

History

This guide is platform-specific. For command information about other platforms,

refer to the relevant Dell Networking OS Command Line Reference Guide.

The following is a list of the Dell Networking OS version history for this command.

Version 9.0.2.0 Introduced on the S6000.

Version 9.2(0.0) Introduced on the M I/O Aggregator. This command is

supported in Programmable-Mux (PMUX) mode only.

Version

8.3.19.0

Introduced on the S4820T.

Version 8.3.11.1 Introduced on the Z9000.

Version 8.3.7.0 Introduced on the S4810.

Version 7.8.1.0 Introduced on the S-Series.

Version 7.7.1.0 Introduced on the C-Series.

Version 7.5.1.0 Introduced on the E-Series.

IGMP Snooping Commands

FTOS supports IGMP Snooping version 2 and 3 on all Dell Networking systems.

Important Points to Remember for IGMP Snooping

• FTOS supports version 1, version 2, and version 3 hosts.

• FTOS IGMP snooping implementation is based on IP multicast address (not based on Layer 2 multicast

mac address) and the IGMP snooping entries are in Layer 3 flow table not in Layer 2 forwarding

information base (FIB).

• FTOS IGMP snooping implementation is based on draft-ietf-magma-snoop-10.

• FTOS supports IGMP snooping on JUMBO-enabled cards.

• IGMP snooping is not enabled by default on the switch.

• A maximum of 1800 groups and 600 VLAN are supported.

• IGMP snooping is not supported on a default VLAN interface.

• IGMP snooping is not supported over VLAN-Stack-enabled VLAN interfaces (you must disable IGMP

snooping on a VLAN interface before configuring VLAN-Stack-related commands).

• IGMP snooping does not react to Layer 2 topology changes triggered by spanning tree protocol (STP).

• IGMP snooping reacts to Layer 2 topology changes multiple spanning tree protocol (MSTP) triggers by

sending a general query on the interface that comes in the FWD state.

Important Points to Remember for IGMP Querier

• The IGMP snooping Querier supports version 2.

• You must configure an IP address to the VLAN interface for IGMP snooping Querier to begin. The

IGMP snooping Querier disables itself when a VLAN IP address is cleared, and then it restarts itself

when an IP address is reassigned to the VLAN interface.

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Internet Group Management Protocol (IGMP)