When you enable this feature on the attachment connected to your Firewall Subnet:
| Pitfall | Solution | |---------|----------| | Feedback causes feature smearing | Reduce feedback strength (multiply by 0.3–0.7) | | Lateral + feedback = too many parameters | Use 1x1 convs for channel reduction | | Training unstable | Add batch norm after every conv + feedback | | Small objects missed | Add a shallow auxiliary head at 1/4 resolution |
When you see a configuration or CLI command resembling fbsubnet+l (or syntax adding a mode to a subnet attachment), it typically refers to enabling Appliance Mode on a Transit Gateway attachment for a VPC containing firewall appliances.
