comp.dcom.sdh-sonet - Discuss the SDH and SONET technology.
Bonjour Huub, Is it always appropriate to talk about RDI in the G1 byte. According to your experience, today, are some new equipments still treat only RDI instead of E-RDI? Thanks for your opinion, best regards, Michelot
4. RDI-P on LOS
I have a question on SONET defect handling: If an LOS is detected on a PTE, should it generate an RDI-P? In Figure 6-5 in GR-253, I see that a PTE must send both RDI-L and RDI-P on detecting an LOS, LOF or AIS-L. Why should we generate RDI-P in this case? Thanks, Ram
5. RFI & RDI
I have received a tidbit of third-hand and translated information regarding the Syncom ADM's treatment of path RDI: "Symcom sends RDI in both directions (working path & protection path)" The context here is a 2 fibre SNCP ring. Yes, I have asked for more details but am not hopeful that it will be forthcoming quickly. Do any of you fine SDH experts recall anything about such a problem? For bonus points, can somebody tell me what the history of Syncom is? Especially with respect to ECI? Thank you very much. Keith Hanlan Ottawa, Canada
Hi, We experience with certain switches some sort of bursts of alarms, frame errors from the switch side that clear almost imediatly. I am using a persistant timer of just 300 ms I am wondering if I need a lot longer persistant timer before disconnecting the callers when an alarm is present. Would anyone know what would be a good value from experience?. Thanks, Nacmir