High Availability Power Alteratives for
Cisco Catalyst 4500 PoE Applicatios
A White Paper from the Experts
in Business-Critical Continuity
High Availability Po er Alternatives for
Cisco 4500 PoE Applications
A White Paper from the Experts
in Business-Critical Continuity
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Introduction
The Cisco Catalyst 4500 Series of switches
is a highly versatile, chassis-based,
intelligent switching platform that provides
control and resiliency for converged
networks (voice, video, and data). The
platform is designed for LAN access, branch
offices, Layer 3 distribution points, small
and medium-sized businesses, and
metropolitan (metro) Ethernet
deployments.
Applications
The primary function of the Cisco Catalyst
4500 is to provide network interface and
switching for data and Internet Telephony
(VoIP). The application is intended mainly
for small-to-medium businesses, but could
be and is used in large Enterprise
application in a campus environment and
wherever multiple sites are involved.
Several deployment scenarios are possible:
data only, voice/data and voice/data plus
Power over Ethernet (PoE).
Deployment Environment
The Cisco Catalyst 4500 is typically installed
in 19-inch mount EIA standard cabinet
(provided by others) and is typically located
in Telco closets and/or Telco equipment
rooms. In the Telco closets, space is at
a premium and the facility infrastructure,
especially reliable power, is often not
available. In addition, the user may not
be familiar with the infrastructure
requirements for high system availability.
A successful deployment of the Cisco
Catalyst 4500 requires simplicity of system
components selection, a plug-and-play
capability, ease-of-operation, and
scalability for future upgrades for all system
components (Cisco Catalyst 4500 and
external power for phones and other PoE
devices).
Product Structure and Scalability
The Cisco Catalyst 4500 platform consists
of four (4) chassis options with a variable
number of slots for line cards and a set
of super