User's Manual

Table Of Contents

ATU

Fig. 7.38: Menu Switch settings - Advanced - ATU

The Address Translation Unit (ATU) in the device supports user commands to access the contents of

the MAC address database.

There is one static record which can't be deleted. This is the management CPU record. The unicast

frames directed to management are allowed to access the CPU port. The VLAN tunnel parameter is

also used to enable the AP frames to access the CPU port.

Primary key

The icon indicates which parameter field is taken as the unique identifier in the

database. This field entry ensures each record is unique and must not be duplicated.

FID

Forwarding Information Database number. If multiple address databases are not being

used, this parameter must remain zero. If multiple address databases are being used,

this parameter is used to set the desired address database number that is to be asso-

ciated with this ATU Entry's MAC Address. When frames ingress the switch, the VID

assigned to the frame is used to access the VTU. The VTU returns the FID associated

with that VID for MAC address lookups in to the ATU.

MAC

MAC address associated with this ATU entry in the database number defined by the

FID.

Label

A custom string label for an ATU entry.

Entry state

The Entry state parameter is used to determine the entry's age or its type as follows:

Configuration