User manual

3-7
Setup
Ports - MAC
Chapter 3
MTU is used to set the size (in bytes) of the largest frame that a
given layer of a communications protocol can process. A higher
MTU brings higher bandwidth efficiency. Not all network devices
can process large packets which can reduce network
performance.
Select the parameter button next to MTU. A numerical keyboard
screen will be displayed. Valid entries are 100 to1518. If a non-
valid entry is chosen, an error message will appear indicating
the error. The screen will then revert back to the keyboard to re-
enter a valid number. The CLEAR button removes the incorrect
digits from the display. After selecting a valid number, select
ENTER to return to the PORTS parameters screen.
Transmit - cont.
MAC address parameters are displayed. The user has a choice of the
FACTORY or USER MAC address.
NOTE: Press the DOWN arrow on the right of the screen to scroll to the
next page of parameters.
MAC
FACTORY - MAC Address of the LANEXPERT is factory set
and CANNOT be changed.
USER - User can enter a MAC address of their choice for device
cloning purposes. MAC cloning allows the LanExpert to
simulate another network device by using its own MAC address
to detect issues originating from that device. Select the address
button to go to a Hexadecimal keyboard screen to enter a MAC
address. The CLEAR button removes the entered digits from the
display before entering a new address. After entering the
desired address, select ENTER to return to the PORTS
parameters screen.