114 SunFDDI/P1.0 Adapter User ’sGuide—May 1997
9
InterpretingTraps and Errors
One of the most important functions of the SunNet Manager agent for
SunFDDI/P is to signal the occurrence of faults or errors on the network.
Trapsare sent to the consoles that you specified when you ran the
pf_install_agents scriptto install the agents on the client machine. See“To
Install the FDDI Schemas on a Client” on page 105 for detailed instructions.
When a cable or station fault occurs, it is signaled by the neighboring station
and not by the station implicated by the fault; however,the information
provided in the trap report sent to the console allows you to identify the
probable source of the problem. Faults often generate a series of trap events
that are caused when the ring reconfiguresitself automatically.
The reason for repeated errors and lost frames is moredifficult to identify
because the fault is signaled by the first system to receive the error frame,
which is not necessarily the station closest to the problem.
The trap report in Figure9-6 was generated by the upstream neighbor
after the cable between a single-attached station and a concentrator was
disconnected. All MAC addresses are displayed in ring format.
Figure9-6 Single-Attached Station Disconnected
SRF_Source=rully
TransitionTimeStamp: Parameter_Type=0x1034
Transition_TimeStamp.Hi=101
Transition_TimeStamp.Lo=3640570640
MAC Neighbor Change Event: Parameter_Type=0x208f
Mac_Index=1
Multiple_Occurrence=0
NA_Condition=2
Old_UNA=0-1-1b-8-10-92
New_UNA=arbois
Old_DNA=europe
New_DNA=10-0-4-b8-6e-ab
Current_path=3
SMT_Address=rully
Sourceof trap report ------>
(neighborto fault)
Trapindicates change
of neighbor ----------------->
Stationdisconnected ------
>
addrof new neighbor ------>