Quick Reference Guide

100 | System Configuration Commands
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show mac-address-table multicast
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
as an optional parameter.
Syntax
show mac-address-table multicast {macaddr [1-3965]}
(OPTIONAL) For macaddr, enter a 6-byte MAC address.
(OPTIONAL) For 1-3965, enter a valid VLAN ID.
Mode
Privileged Exec
Report Fields MAC Address—A multicast MAC address for which the switch has forwarding and or filtering
information. The format is two-digit hexadecimal numbers that are separated by colons, for example
01:23:45:67:89:AB. In a system, the MAC address will be displayed as a MAC address and VLAN ID
combination of 8 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 mac-address-table stats
This command displays Multicast Forwarding Database (MFDB) statistics.
Syntax
show mac-address-table stats
Mode
Privileged Exec
Report Fields Max MFDB Table Entries — Displays the total number of entries that can possibly be in the Multicast
Forwarding Database table.
Most MFDB Entries Ever Since Last Reset — Displays the largest number of entries that have been
present in the Multicast Forwarding Database table. This value is also known as the MFDB high-water
mark.
Current Entries — Displays the current number of entries in the MFDB.
Related
Commands
show mac-address-table Displays Multicast Forwarding Database (MFDB) statistics
show mac-address-table stats Displays Multicast Forwarding Database (MFDB) statistics