Fc_Mr-4 Utilization Window; Maxbaserate For Sts Circuits - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

15.9.2 FC_MR-4 Utilization Window

Parameter
gfpStatsRxDistanceExtBuffers
gfpStatsTxDistanceExtBuffers
mediaIndStatsRxFramesTruncated Number of Fibre Channel frames received with frame size <= 36
mediaIndStatsRxFramesTooLong
mediaIndStatsRxFramesBadCRC
mediaIndStatsTxFramesBadCRC
fcStatsLinkRecoveries
fcStatsRxCredits
fcStatsTxCredits
fcStatsZeroTxCredits
8b10bInvalidOrderedSets
8b10bStatsEncodingDispErrors
gfpStatsCSFRaised
15.9.2 FC_MR-4 Utilization Window
The Utilization window shows the percentage of Tx and Rx line bandwidth used by the ports during
consecutive time segments. The Utilization window provides an Interval drop-down list that enables you
to set time intervals of 1 minute, 15 minutes, 1 hour, and 1 day. Line utilization is calculated with the
following formulas:
Rx = (inOctets + inPkts * 24) * 8 / 100% interval * maxBaseRate
Tx = (outOctets + outPkts * 24) * 8 / 100% interval * maxBaseRate
The interval is defined in seconds. The maxBaseRate is defined by raw bits per second in one direction
for the port (that is, 1 Gbps or 2 Gbps). The maxBaseRate for FC_MR-4 cards is shown in
Table 15-29
STS
STS-24
STS-48
1. For 1 Gbps of bit rate being transported, there are only 850 Mbps of actual data
Cisco ONS 15454 Reference Manual, R8.5
15-54

maxBaseRate for STS Circuits

because of 8b->10b conversion. Similarly, for 2 Gbps of bit rate being transported,
there are only 1700 Mbps (850 Mbps x 2) of actual data.
Definition
Number of buffer credit received for GFP-T receiver (valid only
if distance extension is enabled).
Number of buffer credit transmitted for GFP-T transmitter (valid
only if distance extension is enabled).
bytes.
Number of Fibre Channel frames received with frame size higher
than the provisioned maximum frame size.
Number of Fibre Channel frames received with bad CRC.
Number of Fibre Channel frames transmitted with bad CRC.
Number of link recoveries.
Number of buffers received to buffer credits T (valid only if
distance extension is enable).
Number of buffers transmitted to buffer credits T (valid only if
distance extension is enable).
Number of transmit attempts that failed because of unavailable
credits.
8b10b loss of sync count on Fibre Channel line side.
8b10b disparity violations count on Fibre Channel line side.
Number of GFP Client Signal Fail frames detected.
maxBaseRate
850000000
1
850000000 x 2
Chapter 15 Performance Monitoring
Table 15-29.
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