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AT8404 Utility Commands

Page 4 - 13 AT8404 CLI Reference Manual

4.4.7 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 <vlan_id> parameter to display information about MAC addresses on a

specified VLAN.

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 <vlan_id>, only the Mac Address, Interface, and Status fields appear.

Multicast Packets

Transmitted

The total number of packets that higher-level protocols requested be transmitted to a Multicast

address, including those that were discarded or not sent.

Broadcast Packets

Transmitted

The total number of packets that higher-level protocols requested be transmitted to the

Broadcast address, including those that were discarded or not sent.

Transmit Packets

Discarded

The number of outbound packets which were chosen to be discarded even though no errors

had been detected to prevent their being deliverable to a higher-layer protocol. A possible

reason for discarding a packet could be to free up buffer space.

Most Address

Entries Ever Used

The highest number of Forwarding Database Address Table entries that have been learned

by this switch since the most recent reboot.

Address Entries in

Use

The number of Learned and static entries in the Forwarding Database Address Table for this

switch.

Maximum VLAN

Entries

The maximum number of Virtual LANs (VLANs) allowed on this switch.

Most VLAN Entries

Ever Used

The largest number of VLANs that have been active on this switch since the last reboot.

Static VLAN

Entries

The number of presently active VLAN entries on this switch that have been created statically.

Dynamic VLAN

Entries

The number of presently active VLAN entries on this switch that have been created by GVRP

registration.

VLAN Deletes The number of VLANs on this switch that have been created and then deleted since the last

reboot.

Time Since

Counters Last

Cleared

The elapsed time, in days, hours, minutes, and seconds, since the statistics for this switch

were last cleared.

Format show mac-addr-table [{<macaddr> <vlan_id> | all | count | interface

<slot/port> | vlan <vlan_id>}]

Mode Privileged EXEC

Term Definition

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.

Term Definition

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