Cisco Cisco ASA 5520 Adaptive Security Appliance White Paper
Cisco and Public Sector Cyberdefense
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Introduction
Securing the LAN (Access, Distribution, Core)
The first area for examination is the LAN (as distinguished from the data center, the wide area network [WAN], and
remote agency offices). Usually, this portion of the network is constructed from Cisco
remote agency offices). Usually, this portion of the network is constructed from Cisco
®
Catalyst
®
Series switches.
The Cisco Catalyst Series comes in a variety of form factors, with increasing scalability, performance, and high-touch
features as you progress toward the higher end of the series. Figure 1 illustrates the different switches within the series
and their typical use within different sized networks.
features as you progress toward the higher end of the series. Figure 1 illustrates the different switches within the series
and their typical use within different sized networks.
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