A:
The Cisco Catalyst 4500 E-Series provides a common architecture that can scale up to 388 ports. The Cisco Catalyst WS-C4510R-E offers high availability in supporting 1+1 redundant supervisor engines with subsecond failover time and full image In Service Software Upgrades (ISSU).
The 10-slot Cisco Catalyst 4510R-E chassis is ideal for Power over Ethernet (PoE) or non-PoE high-density enterprise wiring closets and branch offices that require the highest level of resiliency.
Answered on 8/3/2009 by Louh from East Philly