Sun Microsystems 1.0 - Manual (Page 122)

96 SunFDDI/P 1.0 Adapter User’s Guide—May 1997
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not indicate the location of the cause of the error. Frequent error frames can
indicate a noise problem on the network, either dirt (optical fiber) or electrical
interference (UTP).
Lost (Lost Frames)
Running pf_stat without an interval and count displays the total number of
lost frames since the interface was activated. Running pf_stat with an
interval and count displays the number of lost frames since the last
interrogation. A lost frame is defined as an SMT frame whose reception is
aborted by the local station. It does not indicate the location of the cause of
the error. A large number of lost frames can indicate a noise problem on the
network, either dirt (optical fiber) or electrical interference (UTP).
SA (Station Address)
Displays the MAC address for the local station.
UNA (Upstream Neighbor Address)
Displays the MAC address for the neighboring station, connected upstream on
the ring from the local station.
DNA (Downstream Neighbor Address)
Displays the MAC address for the neighboring station, connected downstream
on the ring from the local station.