The Cisco Catalyst® 4948E and 4948E-F Ethernet Switches
(Figure 1) are server-rack-optimized top-of-rack (ToR)
solutions for next-generation data centers. The Cisco
Catalyst 4900 Series Switches offer unique features that
enable critical data center architectures, and the series is
the platform of choice for customers deploying large data
centers—social networking, search engine sites, cloud and
content providers and financial services, etc.—that need
high-performance computing capabilities. The series offers
the following features:
• Line-rate, full-featured Layer 2 and 3 switching, enabling
congestion-free in-rack east-west traffic
• True front-to-back and back-to-front airflow for cable
and cooling management
• Microburst protection through appropriate buffering
with active queue management
