Cronyx E1-XL/B-IP, Инструкция по установке и эксплуатации

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E1-XL/B-IP Multiplexor
© 2006 Cronyx
«Bursty errored seconds»
– counter of seconds during which more than one
CRC4 or frame synchronization error occurred (according to RFC 1406);
«Severely errored seconds» – counter of seconds during which a lot of errors
occurred (according to RFC 1406);
«Out of frame seconds» – counter of seconds during which frame and/or multi-
frame synchronization was lost;
«Degraded minutes»
– counter of seconds during which average error level was
more than 10
-6
;
«Seconds since clear»
– number of seconds after startup or reset;
«Remote status» – state of E1-port at remote TDM/IP-device;
«Remote frequency» – E1 clock frequency at remote TDM/IP-device;
Section “TDM/IP”
«Out of order» and «Out of order long» – number of received, but latecomer
packets;
«Digest error»
– counter of checksum errors;
«No I/O buffer»
– counter of input-output buffer lack errors;
«Packet format» – counter of packets received with invalid data format;
«Invalid retry request» – counter of invalid retransmission requests received;
«P2S underrun», «P2S overrun»
– queue to E1-port transmission underrun/over-
run;
«S2P underrun», «S2P overrun» – queue to E1-port reception underrun/over-
run;
«Sequence lost» – counter of synchronizations lost with packet numbering at
remote device;
«Connection lost» – counter of lost connections with remote part;
«PDV overflows»
– counter of times transport delay unevenness exceeds speci-
fied limits;
«FIFO low limit», «FIFO high limit» – counter of notifications on critical low/
high transmission to E1-port queue filling;
«Frequency low limit», «Frequency high limit» – counter of notifications on
reaching low/high clock frequency limits;
«Items substituted»
– counter of emergency fills transmission to E1-port caused
by data unavailability;
«Retry-ask received», «Retry-ask sent»
– received/sent retransmission requests
counters;
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