Cisco WS-C4006 Switch Chassis for Catalyst 4000 Series

Cisco WS-C4006 Switch Chassis is a modular enclosure in the Catalyst 4000 Series that provides the physical frame for building Cisco's modular switching platform. The WS-C4006 model designation identifies this chassis as the specific enclosure used within the Catalyst family, serving as the foundation for installing field-replaceable line cards and power components that complete a Catalyst 4000 deployment. In practical terms, this chassis acts as the central housing in Cisco networks where modular components are inserted to tailor interface density, redundancy, and performance for campus core, distribution, or data-center interconnect applications. For administrators, the WS-C4006 represents the core building block of a Catalyst 4000 system, enabling integration with compatible cards and modules offered in Cisco's Catalyst ecosystem while aligning with the broader Catalyst design philosophy of modularity and upgradeability.