WS - XP_Sp3+NW4.91Sp4 client

SRV - NW6.5SP8

WS--switch--Server (WS connected to the SRv over IP).

How i can check LAN perfomance betwen server and WS ?

With witch speed WS can send packets to the server and can received it from the server ?
( i`m not ask about - with witch speed can write file to the server or with speed can read file from the sefrver)