| OID | 1.3.6.1.4.1.9.10.131.1.1.1.9 |
| Module | CISCO-IETF-PW-TDM-MIB (CISCO) |
| Nom | cpwCTDMCurrentIndications |
| Acces | readonly |
| Status | current |
| Description | The following defects should be detected and reported
upon request:
-Stray packets MAY be detected by the PSN and multiplexing
layers. Stray packets MUST be discarded by the CE-bound IWF
and their detection MUST NOT affect mechanisms for
detection of packet loss.
-Malformed packets are detected by mismatch between the
expected packet size (taking the value of the L bit into
account) and the actual packet size inferred from the PSN
and multiplexing layers. Malformed in-order packets MUST be
discarded by the CE-bound IWF and replacement data
generated as for lost packets.
-Excessive packet loss rate is detected by computing the
average packet loss rate over the value of
cpwCTDMAvePktLossTimeWindow and comparing it with a
preconfigured threshold [SATOP].
-Buffer overrun is detected in the normal operation state
when the CE bound IWF's jitter buffer cannot accommodate
newly arrived packets.
-Remote packet loss is indicated by reception of packets
with their R bit set.
-Packet misorder is detected by looking at the Sequence
number provided by the control word.
-TDM Fault, if L bit in the control word is set, it
indicates that TDM data carried in the payload is invalid
due an attachment circuit fault. When the L bit is set the
payload MAY be omitted in order to conserve bandwidth.
Note: the algorithm used to capture these indications
is implementation specific. |
| Syntaxe | Bits (0-other, 1-strayPacket, 2-malformedPacket, 3-excessivePktLossRate, 4-bufferOverrun, 5-bufferUnderrun, 6-remotePktLoss, 7-pktMisOrder, 8-packetLoss, 9-tdmFault) |