<｜begin▁of▁sentence｜>
### Instruction:
SRG-3-IM_OPER_ERROR
### Response:
(Severity: 3), (Category: SUBSCRIBER), (Description: An interface manager related operation was unsuccessful, leaving the interface in mostly inconsistent state with respect to BNG Subscriber Redundancy. The exact reason for the failure need to be analysed based on the error string being printed. The batch operation could be to register/deregister for an interface state or add/remove of interface capusulation or update of BNG Subscriber Redundancy attribute to IM. The opearation has been retried for the specified number of times before quitting.), (Recommended Action: The error is mostly a software problem in BNG Subscriber Redundancy module or the Interface Mananger module - If interface un-registration fails, then it would not have a functionality impact on the software. It could mostly happen when interface config is removed from Subscriber Redundancy or Subscriber redundancy config is itself removed. If the config is added back the system is expected to continue to work without any further problems. - For capsulation remove error, check all Subscriber Redundancy client have been notified of the removal. For Ex: if DHCPv6 is the client, then check the dhcp v6 proxy/server interface state for SRG role. If capsulation removal is notified, then it would not have functionality impact as in the un-registration case. Else troubleshooting is required. - For all other errors trouble shooting is required. Workaround: restart srg_agt/srg_mgr process (whichever process caused error))
<|EOT|>
