TNETX3151 datasheet(49/65 Pages) TI1

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TNETX3151

ThunderSWITCH

™ 12/3 ETHERNET™ SWITCH

WITH 12 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS

SPWS048A – MARCH 1998 – REVISED APRIL 1999

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

port mirroring

It is possible to copy (or mirror) all frames that are received by and transmitted to a port designated by the

Mirrorport register to the port designated by the Uplinkport register. This feature is enabled if the mirr bit in

Syscontrol is set to 1, and disabled if it is 0.

If Mirrorport selects a port that is a member of a trunk, only that single specific port is mirrored. Frame traffic

on the other trunk port(s) is not mirrored. The Uplinkport register should not select a port within a trunk

(undesired behavior can occur if this is done).

copy to uplink

If destination address is a unicast and the cuplnk bit of its address record is set to 1 (via a DIO add), when a

frame specifies that address as the destination, a copy of the frame also is sent to the port specified in the

Uplinkport register. The Uplinkport register should not be set to select a port within a trunk (undesired behavior

can occur if this is done).

TNETX3151 数据表(PDF) 49 Page - Texas Instruments