I don't want to turn off all port, I want to block completly broadcast traffic, or the best to limit rate to 500 pps broadcast, all more to drop. Is there any way to do it on Cisco ASR920?

I have service instances on the port. On Cisco asr1000 series I found commands as below, but don't find it on ASR920, but something like it or similar probably will do the work:

Router(config-if)# service instance 1 ethernet Router(config-if-srv)# encapsulation dot1q 1-4094
Router(config-if-srv)# storm-control unicast cir 8000
Router(config-if-srv)# storm-control broadcast cir 1500000
Router(config-if-srv)# storm-control multicast cir 980000000
Router(config-if-srv)# bridge-domain 1

1 Answer 1


Storm Control is done on the interface on the 920, not the service instance. Take the following command for example:

storm-control broadcast level 5 5

storm-control action trap

This would filter broadcast traffic at 5 percent of the interface speed (and send a trap alert), and stop filtering once it drops back below 5 percent.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.