Netgear NETGEAR Manual Do Utilizador

Switching Commands

8-105

A unicast MAC address for which the switch has forwarding and or filtering 
information. The format is 6 or 8 two-digit hexadecimal numbers that are sepa-
rated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC 
address will be displayed as 8 bytes. 

This displays the type of the entry. Static entries are those that are configured by 
the end user. Dynamic entries are added to the table as a result of a learning pro-
cess or protocol.

The text description of this multicast table entry. 

The list of interfaces that are designated for forwarding (Fwd:) and filtering 
(Flt:).

This chapter provides a detailed explanation of the IGMP commands. The commands are divided 
into two functional groups:

•

Show commands display switch settings, statistics, and other information. 

•

Configuration commands configure features and options of the switch. For every 
configuration command, there is a show command that displays the configuration setting.

This command enables IGMP Snooping on the system. The default value is disable.

Note: The IGMP application supports the following: 

•

Global configuration or per interface configuration. Per VLAN configuration is unsupported 
in the IGMP snooping application.

•

Validation of the IP header checksum (as well as the IGMP header checksum) and discarding 
of the frame upon checksum error.

•

Maintenance of the forwarding table entries based on the MAC address versus the IP address.

•

Flooding of unregistered multicast data packets to all ports in the VLAN.