Cisco Catalyst Express 520-24LC Datasheet page 5

All contents are Copyright © 2007-2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
IP Phone + Desktop
Router Configured for optimal connection to a router or firewall for WAN connectivity
Switch
Access Point
Server Can be classified as trusted, critical, business, or standard server:
Printer
Guest
Other
Diagnostic Customers can connect diagnostics devices to monitor traffic on other switches
(configurable using Cisco Configuration Assistant only)
Security
SSL SSL support: encrypts all HTTP traffic, allowing secure access to the browser-based
management GUI in the switch
Security policy slider Three security levels: low, medium, and high (configurable using Cisco Configuration
Assistant only):
Multicast
Product Specifications
Inline power (PoE)
● Optimized QoS for IP phone + desktop configurations
● Voice traffic is placed on "Cisco-Voice" VLAN
● Configurable data VLAN
● QoS level assures voice-over-IP (VoIP) traffic takes precedence
● Port security enabled to limit unauthorized access to the network
● Configured as an uplink port to a backbone switch for fast convergence
● Enables 802.1Q trunking
● Configured for optimal connection to a wireless access point
● Configurable VLAN
● Trusted: for use with Cisco CallManager Express, same QoS setting as voice (VoIP
traffic is prioritized)
● Critical: for critical servers with QoS set higher than default
● Business: default setting; QoS higher than desktop Internet traffic
● Standard: for servers set to same level as regular desktop Internet traffic Configurable
VLAN port security enabled to limit unauthorized access to the network
● QoS settings for "Printer" are the same as "Desktop," "Access Point," and "Standard
Server"
● Configurable VLAN
● Port security enabled to limit unauthorized access to the network
● Guests are allowed access to the Internet, but not to the company network
● All guest ports are placed on the "Cisco-Guest" VLAN
● Port security enabled to limit unauthorized access to the network
● "Other" Smartports role allows for flexible connectivity of nonspecified devices
● Configurable VLAN
● No security
● No QoS policy
● Low: for business environments where there is limited guest access; limited number of
devices are allowed per port
● Medium: for business environments where security is important; only authorized devices
(by MAC address) are allowed on the company network
● High: for business environments where security is critical; only authorized devices (by
MAC address) and authenticated users (using IEEE 802.1x) are allowed on the
company network
● High-bandwidth video traffic is optimized so that it does not affect other applications on
the network.
● Internet Group Management Protocol (IGMP) (v1, v2, and v3) snooping: IGMP snooping
constrains multicast traffic at Layer 2 by configuring Layer 2 LAN ports dynamically to
forward multicast traffic only to those ports that want to receive it.
● All 24 PoE ports on the Cisco Catalyst Express 520-24PC can supply up to 15.4W
(IEEE 802.3af standard maximum) of power over Category 5 cable, for a total of 370W
of inline power.
● All 8 PoE ports on the Cisco Catalyst Express 520-8PC can supply up to 15.4W (IEEE
802.3af standard maximum) of power over Category 5 cable, for a total of 124W of
inline power.
● All 4 PoE ports on Cisco Catalyst Express 520-24LC switches can supply up to 15.4W
of power over Category 5 cable, for a total of 62W of inline power.
● Both the IEEE 802.3af PoE standard and Cisco prestandard inline power are supported.
Data Sheet
Page 5 of 9