Demystifying Switch-based ACLs

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Executive Summary

Access Control Lists (ACLs) are a common staple of Cisco networking, traffic control, and security topics. Access-list configuration and deployment on routers is familiar to most network professionals, but the unique nuances of these same constructs on switches may be much less familiar. This white paper explores switch-based access-lists, explains their common uses, and how they are best utilized on IOS-based Catalyst devices.