Cisco ASA/PIX Bandwidth limiting

Today, I got a chance to setup some bandwidth limiting on our Cisco ASA Firewall. The goal was to choke the speed of traffic going to our backup server to 250Mb/s. As our backup traffic goes through a firewall here’s how I did it on the my ASA5520s

First Define the traffic I want to choke using an access-list:

access-list backup_traffic extended permit ip any host BACKUP01

Then create a policy map to and set the speed

policy-map backup_traffic
class backup_traffic
police input 250000000

Then apply the policy map on the interface

service-policy backup_traffic interface outside

All done! That was easy.

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About the Author

Alfred Tong
Author and owner of this blog. A Networking enthusiast, full time networking and systems Engineer. Generally curious about all things IT. Certifications: GIAC GSEC, CCNP-S, CCNP, CCSP, CCDP, CCNA, RHCE, JNCIA - FWV