Cisco Bug: CSCuk57908 - Wrong alarm propagation on txp-mr-10e cards with payload=10GIGE
Feb 04, 2017
- Cisco ONS 15454 Series Multiservice Provisioning Platforms
Known Affected Releases
6.00 6.01 6.2 7.01 7.2
Symptom: TXP-MR-10E alarm propagation behavior is not consistent. Conditions: The following example illustrates the issue. Configuration ============= - Two ONS 15454 SONET nodes equipped with a TXP-MR-10 in each; - No Protection; - Payload is 10GIGE; Issue a unidirectional signal (with a test set) in both directions; in normal conditions there are no hits or signal faults, and in particular the traffic is provisioned on both end_to_end points. Remove the fiber from the client port of only one node. The result of alarm propagation can be unpredictable, as shown in the example output: First Case: G.709 ON -> near-end client port: "Carrier Loss On The LAN" alarm (MJ); far-end trunk port: "GigaBit Ethernet Out of Sync" alarm (CR). On the far-end trunk the alarm ODUk-AIS should be raised. Second Case: G.709 OFF -> near-end client port: "Carrier Loss On The LAN" alarm (MJ); far-end trunk port: "Carrier Loss On The LAN" alarm (MJ). Measured power is -27dB from the OutPort trunk near-end (Squel.). Sometimes (reproduced 20% of the time) no alarms are reported on the far-end trunk port. This implies that the card does not squelch. On the far-end trunk the alarm "GigaBit Ethernet Out of Sync" (CR) should be raised.
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