Chapter 3 Ethernet Testing
Transmitting layer 2 traffic
HST-3000 Ethernet Testing User’s Guide
71
Transmitting layer 2 traffic
After you configure the layer 2 settings, you are ready to
transmit traffic over the link.
To transmit traffic
1 If you haven’t already done so, launch the terminate appli-
cation for the circuit you are testing (see “Launching an
application” on page 28), and then select the
Layer 2 Traffic test (see “Selecting a layer 2 test” on
page 46).
2 Initialize the link (see “Initializing the link for Ethernet
testing” on page 47).
3 Configure the HST for your test (see “Configuring layer 2
Ethernet tests” on page 51).
4 Press the Home button to return to the Summary Results
screen.
5 Press the Action soft key again, and then select one of
the following:
– Start Traffic (if you configured a constant, bursty, or
flooded load).
– Start Ramp (if you configured a ramped traffic load).
The HST-3000 transmits traffic over the link.
Using J-Proof to verify layer 2 transparency
Using the J-Proof application, you can verify that an Ethernet
circuit can support a variety of control protocols (such as CDP,
VTP, STP, and RSTP), irrespective of the underlying transport
method.
When you verify layer 2 transparency, the receiving test
instrument loops back all test frames, including control frames
and frames carrying a broadcast or multicast address. To do
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