Data Sheet
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IP Phone + Desktop
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Optimized QoS for IP phone + desktop configurations
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Voice traffic is placed on “Cisco-Voice” VLAN
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Configurable data VLAN
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QoS level assures voice-over-IP (VoIP) traffic takes precedence
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Port security enabled to limit unauthorized access to the network
Router
Configured for optimal connection to a router or firewall for WAN connectivity
Switch
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Configured as an uplink port to a backbone switch for fast convergence
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Enables 802.1Q trunking
Access Point
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Configured for optimal connection to a wireless access point
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Configurable VLAN
Server
Can be classified as trusted, critical, business, or standard server:
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Trusted: for use with Cisco CallManager Express, same QoS setting as voice (VoIP
traffic is prioritized)
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Critical: for critical servers with QoS set higher than default
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Business: default setting; QoS higher than desktop Internet traffic
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Standard: for servers set to same level as regular desktop Internet traffic Configurable
VLAN port security enabled to limit unauthorized access to the network
Printer
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QoS settings for “Printer” are the same as “Desktop,” “Access Point,” and “Standard
Server”
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Configurable VLAN
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Port security enabled to limit unauthorized access to the network
Guest
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Guests are allowed access to the Internet, but not to the company network
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All guest ports are placed on the “Cisco-Guest” VLAN
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Port security enabled to limit unauthorized access to the network
Other
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“Other” Smartports role allows for flexible connectivity of nonspecified devices
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Configurable VLAN
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No security
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No QoS policy
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):
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Low: for business environments where there is limited guest access; limited number of
devices are allowed per port
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Medium: for business environments where security is important; only authorized devices
(by MAC address) are allowed on the company network
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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
Multicast
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High-bandwidth video traffic is optimized so that it does not affect other applications on
the network.
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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.
Product Specifications
Inline power (PoE)
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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.
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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.
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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.
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Both the IEEE 802.3af PoE standard and Cisco prestandard inline power are supported.
