Specifications
Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual
6-20 Handling Alarms and Traps IPmux-8/16 Ver. 6.00
BUNDLE CONNECTION STATISTICS
Sequence Errors: | empty
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Jitter Buffer Underflows: | empty
Jitter Buffer Overflows: | empty
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Max Jitter Buffer Deviation: | empty
Current MIN Jitter Buffer count: |
Current MAX Jitter Buffer count: |
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Start Time: 2002-03-22 15:30:00 Valid Intervals 26
1. Interval Number 11
2. Bundle Number 1
ESC. Exit F. Forward connection P. Prev Inv N. Next Inv
Use <ESC>-key, Digit keys or Abc keys from menu
Figure 6-7. Bundle Connection Statistics
Table 6-6. Bundle Connection Statistics Parameters
Parameter Possible Values / Remarks
Sequence Errors The number of seconds a frame was dropped because frames were received
from the network with SN fields not equal to the last SN+1 (or 2)
Jitter Buffer Underflows The number of times frames were dropped because the receive buffer was in
an underrun state. The buffer enters underflow state when:
• Sequence errors occur
• Flow underrun takes place due to PDV expiration
• An overflow condition occurs.
Jitter Buffer Overflows Number of times that frames were dropped because the receive buffer
exceeded the maximum allowed depth
Max Jitter Buffer Deviation
Maximum deviation from the middle of the jitter buffer, in units of 10 μs.
Current MIN Jitter Buffer
Count
Minimum jitter buffer usage registered during the last 1second. This value may
be positive or negative, illustrating the overflow or underflow tendency.
Current MAX Jitter Buffer
Count
Maximum jitter buffer usage registered during the last 1second. This value may
be positive or negative, illustrating the overflow or underflow tendency.
6.2 Handling Alarms and Traps
IPmux-8/16 maintains an event log file that stores up to 2000 events. All events are
time-stamped. The user can view the contents of the event log file via an ASCII
terminal or a network management station. The user can also clear the contents of
the log file.