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Link Layer Tests
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If Examiner is configured as an Upstream Port:
a.
It waits for the PUT’s Port Capability LMP.
b.
It responds to the PUT with an LBAD.
c.
It waits for the PUT to transmit an LRTY.
d.
It waits for the retransmitted packet.
e.
It verifies that the retransmitted packet is the same as the first packet sent by the
device.
f.
It transmits its Port Capability LMP and Port Configuration LMP.
g.
It waits for the PUT’s Port Configuration Ack LMP.
If Examiner is configured as a Downstream Port:
a.
It waits for the PUT’s Port Capability LMP.
b.
It transmits its Port Capability LMP.
c.
It responds to the PUT with an LBAD.
d.
It waits for the PUT to transmit an LRTY.
e.
It waits for the retransmitted packet.
f.
It verifies that the retransmitted packet is the same as the first packet sent by the
device.
g.
It waits for the Port Configuration LMP.
h.
It verifies that the Port Configuration LMP is valid.
i.
It transmits its Port Configuration Ack LMP.
Examiner will keep the link active by sending Link Pollings (LUP when
Examiner is configured as Upstream Port, LDN when Examiner is configured
as a Downstream Port).
3.
Repeat the above steps for each of the invalid conditions listed above.