Alcatel Speed Touch 591s, Техническое руководство пользователя, Страница: 151 / 184

15 — Statistics
Speed Touch 591s Technical Practices 15-7
February 2001 90-8785-01
Table 15-2 lists the statistics available.
Table 15-2 AAL1 statistics
Statistic Description
AAL1 Transmitted Cells Number of cells transmitted over ATM
AAL1 Reassembled
Cells Number of cells played out to the CES service (excluding cells that were
discarded for any reason), including cells that were not used because
they were declared misinserted, or were discarded while the reassembler
was waiting for synchronization
AAL1 Header Errors Number of AAL1 header errors detected, including those corrected.
Header errors include correctable and uncorrectable CRC, plus bad
parity
AAL1 Lost Cells Provides a rough approximation of the number of cells lost due to SN
continuity errors
AAL1 Buffer Overflows Number of receive buffer overflows. This counter can be incremented
only once every 100 ms.
AAL1 Buffer
Starvation/Underflows Number of receive buffer underflows. This counter can be incremented
only once every 100 ms.
AAL1 Underflow
Seconds Number of seconds during which there was a receive buffer underflow
state
AAL1 Loss of Synchro Number of times that an event caused a transition to the start state, as
defined by ITU-T I.363.1
AAL1 Pointer Parity
Errors Number of SDT pointer parity errors. This counter can be incremented
only once every 100 ms (SDT mode only).
AAL1 Pointer Reframes Number of times that the AAL1 reassembler found that an SDT pointer
was not where it was supposed to be and had to reacquire a pointer (SDT
mode only).