Network Topology
Not involving
Problem Description
The SNMP MIB is used to deliver QOS configuration on site. When calling the interface, it is found that using hh3cCBQoSIfApplyPolicyName and hh3cCBQoSIfApplyPolicyRowStatus to deliver inbound and outbound cannot be delivered at the same time. It can only be delivered in one direction. An error will be reported when delivering in the other direction.
Process Analysis
Applications delivered by POLICY usually carry a lot of table entries, and driver refresh will be time-consuming. MIB has a timeout mechanism. In order to prevent timeout, before delivering the driver, the platform returns to the MIB for processing and the background continues to deliver the driver. Currently, inbound and outbound are delivered at the same time. When outbound is delivered, the process is still busy and the inbound instance driver is still being refreshed. It will not wait (to prevent timeout) and directly returns failure.
Solution
The hh3cCBQoSApplyingStatus node needs to be read. When the status is idle, the other direction can be issued.