Flint 3 (GL-BE9300) - PPE ECM bug causes packet deaths

[will.qiu]

Hi,

Thank you for the follow-up and for confirming that you found no evidence of an ECM/PPE issue after retesting.

The new eth1.1 behavior may be related to this previously reported issue:

[4.9.0] GL-BE9300: link-down on one LAN port disables br-lan's only wired port (eth1.1), disconnecting all wired clients

Hi, Thank you for the detailed report, troubleshooting information, and the workaround you shared. We have reproduced the same issue locally on a GL-BE9300 running v4.9.0. We have recorded this issue and submitted it to the relevant team for further analysis. If there are any further updates, we will continue to follow up with you in this thread. Thank you again for your patience and assistance.

Could you please confirm:

1. Have you created any additional or custom VLANs, including through LuCI or SSH?
2. Does the issue appear to be related to the link state of LAN 1—for example, a connected device being powered on or off, or its Ethernet cable being unplugged or reconnected?

Please also let us know whether a device was connected to LAN 1 when the router booted and the issue occurred. We will investigate it further.