Information Technology Reference
In-Depth Information
A couple of hardware options for this design are the Cisco Catalyst 3750/3750X with
StackWise technology or using a modular approach with a Cisco Catalyst 4500. The
Cisco 3750/3750X series of switches provide great port density options and can even
provide the redundant power. The Cisco 4500 switch platform is a modular chassis-based
switch that not only allows for flexibility by increasing port densities through additional
modules but can also provides redundant power internally for the entire chassis when us-
ing dual power supplies. All of these switch models have PoE options available for both
IEEE 802.3af (PoE) or IEEE 802.3at (PoE+). The Cisco Catalyst 4507 switch also support
dual supervisor capabilities for high-availability types of environments.
If Cisco Catalyst 3560 and 3750/3750X switches are used, additional Layer 2 security
feat ure s s uch as dy namic Addre s s Re s olut ion P rotocol (ARP) in s pec t ion, Dy namic Ho st
Control Protocol (DHCP) snooping, and IP Source Guard can be used to provide addi-
tional security enhancements.
Figure 7-10 illustrates the large branch design using dual routers, ASAs, and distribution
switches.
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WAN
Figure 7-10
Large Branch Design
