KSZ9893R datasheet(72/189 Pages) MICROCHIP

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KSZ9893R

DS00002420D-page 72

 2017-2018 Microchip Technology Inc.

5.1.4.12

Switch Lookup Engine Control 2 Register

Aging Enable

1 = Enable address table aging

0 = Disable address table aging

R/W

Fast Aging

1 = Enable fast aging

0 = Disable fast aging

R/W

Link Down Flush

1 = Link down will cause the entries of any link down port to be flushed

0 = Link down flush is disabled

R/W

Address:

0x0312

Size:

8 bits

Bits

Description

Type

Default

RESERVED

R/W

Double Tag Multicast Trap

1 = When double tagging mode is enabled, forward all reserved multicast

packets to the host port only.

0 = Normal forwarding

R/W

Dynamic Entry Egress VLAN Filtering

Egress VLAN filtering uses the forwarding port map from the VLAN table to

restrict the forwarding ports determined from the address lookup. This is the

recommended mode of operation when VLAN is enabled. The default value

is 0 only for backwards compatibility with previous switches.

1 = Enable. For successful lookup of a dynamic entry in the address table,

the forwarding ports are determined from the AND function of the address

table port map and the VLAN table port map.

0 = Disable. For successful lookup of a dynamic entry in the address table,

the forwarding ports are determined from the address table only.

R/W

Static Entry Egress VLAN Filtering

Egress VLAN filtering uses the forwarding port map from the VLAN table to

restrict the forwarding ports determined from the address lookup. This is the

recommended mode of operation when VLAN is enabled. The default value

is 0 only for backwards compatibility with previous switches.

1 = Enable. For successful lookup of a static entry in the address table, the

forwarding ports are determined from the AND function of the address table

port map and the VLAN table port map.

0 = Disable. For successful lookup of a static entry in the address table, the

forwarding ports are determined from the address table only.

R/W

Bits

Description

Type

Default

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