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Catalyst 2928 Switch Software Configuration Guide
OL-23389-01
Chapter 1 Overview
Features
Manageability Features
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CNS embedded agents for automating switch management, configuration storage, and delivery
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DHCP for automating configuration of switch information (such as IP address, default gateway,
hostname, and Domain Name System [DNS] and TFTP server names)
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DHCP relay for forwarding User Datagram Protocol (UDP) broadcasts, including IP address
requests, from DHCP clients
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DHCP server for automatic assignment of IP addresses and other DHCP options to IP hosts
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DHCP-based autoconfiguration and image update to download a specified configuration a new
image to a large number of switches
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Directed unicast requests to a DNS server for identifying a switch through its IP address and its
corresponding hostname and to a TFTP server for administering software upgrades from a TFTP
server
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Address Resolution Protocol (ARP) for identifying a switch through its IP address and its
corresponding MAC address
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Unicast MAC address filtering to drop packets with specific source or destination MAC addresses
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Cisco Discovery Protocol (CDP) Versions 1 and 2 for network topology discovery and mapping
between the switch and other Cisco devices on the network
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Link Layer Discovery Protocol (LLDP) for interoperability with third-party IP phones
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Support for the LLDP-MED location TLV that provides location information from the switch to the
endpoint device
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CDP and LLDP enhancements for exchanging location information with video end points for
dynamic location-based content distribution from servers
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Network Time Protocol (NTP) for providing a consistent time stamp to all switches from an external
source
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Cisco IOS File System (IFS) for providing a single interface to all file systems that the switch uses
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Configuration logging to log and to view changes to the switch configuration
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Unique device identifier to provide product identification information through a
show inventory
user EXEC command display
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In-band management access through the device manager over a Netscape Navigator or Microsoft
Internet Explorer browser session
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In-band management access for up to 16 simultaneous Telnet connections for multiple CLI-based
sessions over the network
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In-band management access for up to five simultaneous, encrypted Secure Shell (SSH) connections
for multiple CLI-based sessions over the network (requires the cryptographic version of the
software)
•
In-band management access through SNMP Versions 1, 2c, and 3 get and set requests
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Out-of-band management access through the switch console port to a directly attached terminal or
to a remote terminal through a serial connection or a modem
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Secure Copy Protocol (SCP) feature to provide a secure and authenticated method for copying
switch configuration or switch image files (requires the cryptographic version of the software)
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DHCP Snooping enhancement to support the selection of a fixed string-based format for the
circuit-id sub-option of the Option 82 DHCP field
