Table 15-27 Maxbaserate For Sts Circuits; Fc_Mr-4 Utilization Window - Cisco ONS 15454 Reference Manual

Chapter 15 Performance Monitoring
Table 15-26
Parameter
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 15-27
STS
STS-24
STS-48
1. For 1 Gbps of bit rate being transported, there are only 850 Mbps of actual data
Line utilization numbers express the average of ingress and egress traffic as a percentage of capacity.
Note
OL-9217-01
FC_MR-4 Card Statistics
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 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
Cisco ONS 15454 Reference Manual, R7.0.1
15.9 15.9.2 FC_MR-4 Utilization Window
Table 15-27.
15-47