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12-17
Cisco ONS 15600 Reference Manual, R7.2
Chapter 12 Performance Monitoring
12.6.2 ASAP Card Ethernet Performance Monitoring Parameters
12.6.2.5 ASAP Card POS Ports Utilization Window
The POS Ports Utilization window shows the percentage of Tx and Rx line bandwidth used by the POS
ports during consecutive time segments. The Utilization window provides an Interval menu 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 * 8) / interval * maxBaseRate
Tx = (outOctets * 8) / interval * maxBaseRate
The interval is defined in seconds. The maxBaseRate is defined by raw bits per second in one direction
for the Ethernet port (that is,1 Gbps). The maxBaseRate for ASAP cards is shown in Table 12-7 on
page 12-16.
Note
Line utilization numbers express the average of ingress and egress traffic as a percentage of capacity.
12.6.2.6 ASAP Card POS Ports History Window
The Ethernet POS Ports History window lists past Ethernet POS Ports statistics for the previous time
intervals. The History window displays the statistics for each port for the number of previous time
intervals as shown in Table 12-8. The listed parameters are defined in Table 12-9 on page 12-16.
Tx Octets Number of bytes transmitted (to the SONET/SDH path) after the
bytes undergoing HLDC encapsulation by the policy engine.
Rx Shorts Number of packets below the minimum packet size received.
Rx Runts Total number of frames received that are less than 5 bytes.
Rx Longs Number of received frames that exceed the maximum transfer
unit (MTU).
Rx CRC Errors/HDLC Errors HDLC errors received from SONET/SDH.
Rx Single Bit Errors Number of received frames with single bit errors.
Rx Multi Bit Errors Number of received frames with multibit errors.
Rx Type Invalid Number of received frames with invalid type.
Rx Input Abort Packets Number of received packets aborted before input.
Rx Input Drop Packets Number of received packets dropped before input.
Table 12-9 ASAP Card POS Ports Parameters (continued)
Parameter Meaning