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7000 Series L3 Managed Switch Reference Manual for Software v2.0
Switching Commands 7-43
Format config igmpsnooping interface mode <slot.port/all>
<enable/disable>
show mfdb table
This command displays the Multicast Forwarding Database (MFDB) information. If the command
is entered with no parameter, the entire table is displayed. This is the same as entering the optional
all parameter. The user can display the table entry for one MAC Address by specifying the MAC
address a an optional parameter.
Format show mfdb table [macaddr/all]
Mac Address
A unicast MAC address for which the switch has forwarding and
or filtering information. The format is 6 or 8 two-digit hexadeci-
mal numbers that are separated by colons, for example
01:23:45:67:89:AB. In an IVL system the MAC address will be
displayed as 8 bytes. In an SVL system, the MAC address will be
displayed as 6 bytes.
Type 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 process or protocol.
Component The component that is responsible for this entry in the Multicast
Forwarding Database. Possible values are IGMP Snooping,
GMRP, and Static Filtering.
Description The text description of this multicast table entry.
Interfaces The list of interfaces that are designated for forwarding (Fwd:)
and filtering (Flt:).
Forwarding Interfaces The resultant forwarding list is derived from combining all the
component’s forwarding interfaces and removing the interfaces
that are listed as the static filtering interfaces.
show mfdb gmrp
This command displays the GARP Multicast Registration Protocol (GMRP) entries in the
Multicast Forwarding Database (MFDB) table.
Format show mfdb gmrp
Mac Address A unicast MAC address for which the switch has forwarding and
or filtering information. The format is 6 or 8 two-digit hexadeci-
mal numbers that are separated by colons, for example
01:23:45:67:89:AB. In an IVL system the MAC address will be