| Subject | Sub-vsys cannot be deleted and get an error | |
| Issue description and key logs | Deleting the sub-vsys fails, and an error message shows unloading configuration failed | |
| Symptoms | Deleting the sub-vsys fails, and an error message shows unloading configuration failed | |
| Reason and Trigger Condition | The reason is that the actual execution timing does not meet expectations when deleting the vsys, that is, it is judged whether the interface is referenced by dns before the nameserver reference count of the interface is deleted, resulting in the failure to delete the vsys | |
| Workaround | Under the corresponding interface in sub vsys: 1. Ip address dhcp (if “no ip address dhcp” fails, execute this first) 2. No ip address dhcp 3. Exit-vsys 4. No vsys testvsys | |
| Final Solution | The following versions will solve the issue 5.5R6P23(HAWAII_REL_R6):304901 5.5R8P10(HAWAII_REL_R8):304903 5.5R9P3(HAWAII_REL_R9):304905 5.5R10(MX_MAIN):304909 | |
| Version | R8P8 | |
| Hardware Platform | E1606 | |
| Case ID | 1013594348 |