21-43
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 21 DLPs D400 to D499
DLP- D465 Create FC_MR-4 RMON Alarm Thresholds
Step 7 From the Alarm Type drop-down list, indicate whether the event will be triggered by the rising threshold,
falling threshold, or both the rising and falling thresholds.
Step 8 From the Sample Type drop-down list, choose either Relative or Absolute. Relative restricts the
threshold to use the number of occurrences in the user-set sample period. Absolute sets the threshold to
use the total number of occurrences, regardless of time period.
Step 9 Type in an appropriate number of seconds in the Sample Period field.
Step 10 Type in the appropriate number of occurrences in the Rising Threshold field.
For a rising type of alarm, the measured value must move from below the falling threshold to above the
rising threshold. For example, if a network is running below a rising threshold of 1000 collisions every
15 seconds and a problem causes 1001 collisions in 15 seconds, the excess occurrences trigger an alarm.
Step 11 Enter the appropriate number of occurrences in the Falling Threshold field. In most cases, a falling
threshold is set lower than the rising threshold.
A falling threshold is the counterpart to a rising threshold. When the number of occurrences is above the
rising threshold and then drops below a falling threshold, it resets the rising threshold. For example,
when the network problem that caused 1001 collisions in 15 seconds subsides and creates only
799 collisions in 15 seconds, occurrences fall below a falling threshold of 800 collisions. This resets the
rising threshold so that if network collisions again spike over a 1000 per 15-second period, an event again
fibreStatsRxFramesTooLong Received oversize Fibre Channel frames that are greater than 2148
including CRC.
fibreStatsRxFramesBadCRC Received Fibre Channel frames with bad CRC.
fibreStatsRxFrames Received total Fibre Channel frames.
fibreStatsRxOctets Received total Fibre Channel data bytes within a frame.
fibreStatsTxFramesBadCRC Transmitted Fibre Channel frames with bad CRC.
fibreStatsTxFrames Transmitted total Fibre Channel frames.
fibreStatsTxOctets Transmitted total Fibre Channel data bytes within a frame.
fibreStatsLinkResets Total number of link resets initiated by FCMR port when link
recovery port setting is enabled.
gfpStatsRxSBitErrors Received GFP frames with single bit errors in the core header (these
errors are correctable).
gfpStatsRxMBitErrors Received GFP frames with multiple bit errors in the core header
(these errors are not correctable).
gfpStatsRxTypeInvalid Received GFP frames with invalid type (these are discarded). For
example, receiving GFP frames that contain Ethernet data when
Fibre Channel data is expected.
gfpStatsRxSblkCRCErrors Total number of superblock CRC errors with the receive transparent
GFP frame. A transparent GFP frame has multiple superblocks
which each contain Fibre Channel data.
8b10bInvalidOrderedSets Total number of ordered sets not compliant to Gigabit Ethernet/Fibre
Channel (GE/FC) standard.
8b10bStatsEncodingDispErrors Total number of code groups that violate GE/FC disparity errors.
Table 21-4 FC_MR-4 Threshold Variables for Fibre Channel/FICON Enhanced Mode
(MIBs) (continued)
Variable Definition
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