--- zzzz-none-000/linux-4.19.183/net/bridge/Kconfig	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/net/bridge/Kconfig	2023-06-28 08:54:21.000000000 +0000
@@ -33,6 +33,24 @@
 
 	  If unsure, say N.
 
+config AVM_BRIDGE_FLOOD_RATELIMITER
+	bool "Port flood rate limiting"
+	depends on AVM_ENHANCED
+	depends on BRIDGE
+	default y
+	---help---
+	  AVM extension
+
+	  This enables a simple, configurable bridge flood rate limiting mechanism, to
+	  help protect accidental or willful network loops. You can configure a
+	  maximum packet rate and a reserve. The reserve can be higher to allow for
+	  short bursts.
+
+	  The ratelimiter will only limit packets which are forwarded on all ports.
+	  Traffic (unicast and multicast) that is forwarded to specific ports is
+	  unaffected. Locally generated traffic is unaffected as well. It is
+	  disabled by default and must be configured through sysfs.
+
 config BRIDGE_IGMP_SNOOPING
 	bool "IGMP/MLD snooping"
 	depends on BRIDGE