The ring is compromised of 8 OSN 6800 sites and different type of traffic are configured
NE version is 5.51.05.35
BUS_ERR alarm on NS3 card
First of all check the service configuartion and all services were configured correctly and as per requirement both client and network side services were same.We need to take care of service type either we are using standrad or speedup services
Standrad are using for Traditional 10 G services
Speedup are using for Ethernet services higher than 10 G
Check hardware ,hardware is also working giving the same alarms on other node also when we inserted the same card,when we check the module type of both cards on both NEs we find the on one site there was TN52NS3T03 and on other site there was TN52NS3T01.
TO3 is used for short haul and T01 is used for Long Haul communication
After changing both cards to same module type the alarms cleared
Service configuration mismatch
Higher Alarms due to which low alarms also appear
It is suggested to use same type of hardware module and take care of this also for same sort of alarms.