KB provide detail about traffic loss issue observed after applying high scaled FW filter applied on the interface of the router and KB also address the fix for the issue
Customer might observe traffic on the interface after applying high scaled FW filter. below error logs should be seen on the device
ytchip-luss[19474]: [t:20241] [Error] CDA: LkupAsicFilterMemWrite write_block failed, PFE:255 wqSts:22
ytchip-luss[19474]: CdaPpeBkptThread(407): PPE BKPT TRAP INFO READ Type: PFE 0 PPE 0 Cntx 2.
ytchip-luss[19474]: dispatch_event_handler(1106): YT[0].slice[0].disp[0] PRIMARY_TIMEOUT (PPE 0 Zone 4).
ytchip-luss[19474]: ppe_error_interrupt(8377): YT[0].slice[0]_PPE 40 Errors thread timeout error
ytchip-luss[19474]: CdaPpeBkptThread(407): PPE BKPT TRAP INFO READ Type: PFE 0 PPE 40 Cntx 11.
ytchip-luss[19474]: dispatch_event_handler(1106): YT[0].slice[0].disp[2] PRIMARY_TIMEOUT (PPE 0 Zone 9).
This is the bug which is addressed through PR please contact JTAC for more detail about the PR and fix version.