Figure 7 Front - To -Back; Figure 8 Back - To -Front - Cisco Catalyst 4503-E Manual

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Figure 7 Front-to-Back Airflow Rear View

Figure 8 Back-to-Front Airflow Rear View

As described above, the physical boundary of the TOE is the switch hardware and

software. The software of the TOE is IOS and other supporting functionality (e.g., SSH

Server). This physical boundary represents the Switch subsystem of the TOE. The

Switch subsystem processes data packets and accepts a management interface connection

to administer the switch. The management interface is either through a secure SSHv2

session or via a local console connection.

The switches are hardware platforms in which all operations in the TOE scope are

protected from interference and tampering by untrusted subjects. All administration and

configuration operations are performed within the physical boundary of the TOE. Also,

all TOE Security Policy (TSP) enforcement functions must be invoked and succeed prior

to functions within the TOE scope of control (TSC) proceeding.

The TOE includes one or more chassis, one or more supervisor engine cards running the

IOS XE software and one or more line cards. Each switch is a physical device with the

following types of communication interfaces provided by the supervisor engine cards

and/or the line cards:

 USB ports,

 Network port,

11 March 2014

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