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Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 1 Product Overview
Security Features
Utilities
Supported utilities include the following:

Layer 2 Traceroute

Layer 2 traceroute allows the switch to identify the physical path that a packet takes from a source device
to a destination device. Layer 2 traceroute supports only unicast source and destination MAC addresses.
For information about Layer 2 Traceroute, see Chapter 7, “Checking Port Status and Connectivity.

Time Domain Reflectometry

Time Domain Reflectometry (TDR) is a technology used for diagnosing the state and reliability of
cables. TDR can detect open, shorted, or terminated cable states. The calculation of the distance to the
failure point is also supported.
For information about TDR, see Chapter 7, “Checking Port Status and Connectivity.”

Debugging Features

The Catalyst 4500 series switch has several commands to help you debug your initial setup. These
commands are included in the following command groups:
platform
debug platform
For more information, refer to the Catalyst 4500 Series Switch Cisco IOS Command Reference.
Web-based Authentication
The web-based authentication feature, known as Web Authentication Proxy, enables you to authen ticate
end users on host systems that do not run the IEEE 802.1X supplicant. When you initiate an HTTP
session, this feature intercepts ingress HTTP packets from the host and sends an HTML login page to
your. You key in the credentials, which the web-based authentication feature sends to the AAA server
for authentication. If authentication succeeds, web-based authentication sends a Login-Successful
HTML page to the host and applies the access policies returned by the AAA server.
For information on configuring web-based authentication, see Chapter 42, “Configuring Web-Based
Authentication.”