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8-20 CHAPTER 8: ADMINISTERING FDDI RESOURCES
Table 8-5 describes the type of information provided for an FDDI port.
Setting lerAlarm The lerAlarm attribute is the link error rate (LER) value at which a link
connection generates an alarm. If the LER value is greater than the alarm
setting, then SMT sends a Status Report Frame (SRF) to the network
manager indicating a problem with a port. The lerAlarm value is expressed
as an exponent (such as 1 x 10
-10
). A healthy network has an LER exponent
between 1 x 10
-10
and 1 x 10
-15
. You should set the lerAlarm below these
Table 8-5 Description of Fields for FDDI Port Attributes
Field Description
connectState Connect state of this port (disabled, connecting, standby, or active)
currentPath Path on which this port is currently located
ebErrorCond Condition is active when an elasticity buffer error has been
detected during the past 2 seconds
ebErrorCount Number of Elasticity Buffer errors that have been detected
lctFailCount Number of consecutive times the link confidence test (LCT) has
failed during connection management
lemCount Number of link errors detected by this port
lemRejectCount Number of times that the link error monitor rejected the link
lerAlarm The link error rate estimate at which a link connection generates
an alarm
lerCondition Condition is active when the lerEstimate is less than or equal to
lerAlarm
lerCutoff The link error rate estimate at which a link connection is broken
lerEstimate Average link error rate. It ranges from 10
-4
to 10
-15
and is reported
as the absolute value of the exponent of the link error estimate
lineState Line state of this port
myType Type of port connector on the port
neighborType Type of port connector at the other end of the physical connection
pcmState Current Physical Connection Management (PCM) State defined in
SMT
pcWithhold Reason for withholding the connection
pmdClass Type of PMD entity associated with this port
portLabel 32-character string containing a user-defined name