User manual

3-6
Setup
Ports - Transmit
TRANSMIT parameter displays how the LanExpert communicates
with the user’s network, i.e. DISABLED, RFC894, LLC/SNAP or VLAN.
Transmit
DISABLE turns off all packet generation for non-intrusive
testing. No IP address is required for this configuration.
RFC894 enables packet transmission. This protocol is the most
common standard using IP datagrams.
LLC/SNAP enables packet transmission. It is a legacy standard
using IEEE 802.2 frames.
VLAN logically groups computers together across one or more
switches. (For example the IT Department VLAN). The VLAN
Identifier or tag specifies the VLAN to which the frame belongs.
A value of 0 means the frame is not assigned to any VLAN. All
other values may be used as VLAN identifiers allowing up to
4095 VLANs. VLAN 1 is often reserved for management of a
network bridge.
Chapter 3
Ports Setup Screen II
Tag
Next to VLAN, the user can select or change the TAG number if
there is more than one. Select the TAG=? button. A numerical
keyboard screen is displayed. Valid entries are 0 to 4095. If a
non-valid entry is chosen, then 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 entered digits from the display. After selecting a
valid number, select ENTER to return to the PORTS parameters
screen.