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Cisco MGX 8240 Hardware User’s Guide
Release 3.0, Part Number 78-10728-01, July 2000
Chapter 5 Statistics
• Far End Path Coding Violations
• Far End Path Unavailable Seconds
DS3 Statistics
Each DS3 performance monitoring statistic is retained for the current 15-minute interval, a history of the
last 32 15-minute intervals (8 hours), and the current 24-hour period (starting and ending at midnight
GMT). Along with the statistics, it is also possible to verify the elapsed time in the current 15-minute
interval and the amount of 15-minute intervals currently stored (this is relevant only during the first
8 hours of operation). The following statistics are retained:
• P-bit Errored Seconds
• P-bit Severely Errored Seconds
• P-bit Coding Violations
• Severely Errored Framing Seconds
• Line Errored
• Line Severely Errored Seconds
• Line Coding Violations
• Unavailable Seconds
• Alarm Indication Signal Seconds
• C-bit Errored Seconds (applies only to C-bit Parity line type)
• C-bit Severely Errored Seconds (applies only to C-bit Parity line type)
• C-bit Coding Violations (applies only to C-bit Parity line type)
• Far End C-bit Errored Seconds (applies only to C-bit Parity line type)
• Far End C-bit Severely Errored (applies only to C-bit Parity line type)
• Far End C-bit Coding Violations (applies only to C-bit Parity line type)
• Far End Unavailable Seconds (applies only to C-bit Parity line type)
DS1 Statistics
Note Line Errored Seconds, Line Severely Errored Seconds, and Line Coding Violations are not
supported directly on the MGX 8240 because the MGX 8240 does not terminate the DS1
line. This means that no performance monitoring statistics can be supported when the DS1
is not set for ESF or SF framing. Since the only means of monitoring far end performance
statistics is through the ESF Facilities Data Link, far end statistics can only be supported
when ESF framing is selected.
The following statistics are retained:
• Errored Seconds (applies only to ESF and SF framing types)
• Severely Errored Seconds (applies only to ESF and SF framing types)
• Severely Errored Framing (applies only to ESF and SF framing types)