Product Specifications - Cisco Catalyst Express 520-24LC Datasheet

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can quickly deploy and configure all components in the Cisco Smart Business
Communications System, including the Cisco Catalyst Express 520 Series using Cisco
Configuration Assistant.
Ease of use: The Cisco Catalyst Express 520 Series was designed for ease of use by
●
SMBs without dedicated networking resources. You can deploy the switches in minutes
using Cisco Configuration Assistant's intuitive GUI without ever having to learn command-
line interfaces or complex administrative terminals. Cisco Configuration Assistant can
dynamically configure your switches or suggest recommended settings for all ports and let
you choose from preset options with Cisco Smartports Advisor. In addition, all ports support
autonegotiation of port speed, data rate, and duplex mode. The Cisco Catalyst Express 520
Series includes automatic medium-dependent interface crossover (Auto-MDIX) detection
support, which determines the wire pair to use for transmitting and receiving data and
avoids the use of incorrect cable types.
Limited Lifetime Warranty: All Cisco Catalyst switches are protected for the life of the
●
product by the Cisco Limited Lifetime Hardware Warranty and include free Cisco IOS
Software updates. For more information about the Cisco Limited Lifetime Warranty, visit
http://www.cisco.com/en/US/docs/general/warranty/English/LH2DEN__.html.

Product Specifications

Table 2 gives specifications for Cisco Catalyst Express 520 Series Switches.
Table 2. Cisco Catalyst Express 520 Series Specifications
Feature
Performance
DRAM/flash memory
Switching capacity
Forwarding rate
Layer 2 Switching
Spanning Tree Protocol
MAC addresses
Virtual LANs (VLANs)
Number and type of queues
Port grouping
Smartports (Preset Cisco Recommended Network Enhancements, QoS, and Security)
Desktop
Description
● 64 MB DRAM
● 16 MB flash memory
● 3.6 Gbps for Cisco Catalyst Express 520-8PC
● 8.8 Gbps for Cisco Catalyst Express 520-24TT, Cisco Catalyst Express 520-24LC, and
Cisco Catalyst Express 520-24PC
● 24 Gbps for Cisco Catalyst Express 520G-24TC
● 2.7-Mpps for Cisco Catalyst Express 520-8PC
● 6.6-Mpps wire-speed performance for Cisco Catalyst Express 520-24TT, Cisco Catalyst
Express 520-24LC, and Cisco Catalyst Express 520-24PC
● 18-Mpps wire-speed performance for Cisco Catalyst Express 520G-24TC
● Fast convergence using 802.1w, enabled by default
● Portfast: supported on "Desktop," "Phone + Desktop," "Printer," and "Server" Smartports
roles
8000 MAC addresses
Up to 32 VLANs (1000 range) and support for 802.1Q trunking using Cisco Smartports
● 4 queues per port
● Shaped Round Robin (SRR) queuing
● Support for differentiated services code point (DSCP) and class of service (CoS) using
Cisco Smartports
● Support for Cisco EtherChannel
● Up to 6 groups
● Up to 8 ports per group
● Optimized for desktop connectivity
● Configurable VLAN setting
● Port security enabled to limit unauthorized access to the network
®
and IEEE 802.3ad
Data Sheet
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