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7 show mac-addr-table, Show mac-addr-table - 15, At8901m utility commands – Kontron AT8901M CLI User Manual

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AT8901M

Utility Commands

Page 5 - 15

AT8901M CLI Reference Manual

5.3.7

show mac-addr-table

This command displays the forwarding database entries. These entries are used by the
transparent bridging function to determine how to forward a received frame.

Enter

all

or no parameter to display the entire table. Enter a MAC Address and VLAN

ID to display the table entry for the requested MAC address on the specified VLAN.
Enter the

count

parameter to view summary information about the forwarding

database table. Use the

interface <

slot/port

>

parameter to view MAC addresses on a

specific interface. Use the

vlan

parameter to display information about

MAC addresses on a specified VLAN.

Format

show mac-addr-table [{ | all | count |

interface | vlan }]

Mode

Privileged EXEC

The following information displays if you do not enter a parameter, the keyword all, or
the MAC address and VLAN ID. If you enter

vlan

, only the Mac Address,

Interface, and Status fields appear.

Mac Address

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 separated by colons,

for example 01:23:45:67:89:AB. In an IVL system the MAC

address will be displayed as 8 bytes.

Interface

The port through which this address was learned.

Interface Index

This object indicates the ifIndex of the interface table

entry associated with this port.

Status

The status of this entry. The meanings of the values are:

Static—The value of the corresponding instance was added

by the system or a user when a static MAC filter was

defined. It cannot be relearned.

Learned—The value of the corresponding instance was

learned by observing the source MAC addresses of incoming

traffic, and is currently in use.

Management—The value of the corresponding instance (system

MAC address) is also the value of an existing instance of

dot1dStaticAddress. It is identified with interface 0/1.

and is currently used when enabling VLANs for routing.

Self—The value of the corresponding instance is the

address of one of the switch’s physical interfaces (the

system’s own MAC address).

GMRP Learned—The value of the corresponding was learned

via GMRP and applies to Multicast.

Other—The value of the corresponding instance does not

fall into one of the other categories.

If you enter the

interface <

slot/port

>

parameter, in addition to the MAC Address

and Status fields, the following field appears:

VLAN ID

The VLAN on which the MAC address was learned.

The following information displays if you enter the

count

parameter:

Dynamic Address count

Number of MAC addresses in the forwarding data-

base that were automatically learned.