Ease of Use: "Plug-and-Play" Configuration
A working stack is self-managing and self-configuring. When switches are added or
removed, the master switch automatically loads the Cisco IOS® Software revision
running on the stack to the new switch, loads the global configuration parameters,
and updates all the routing tables to reflect changes. Upgrades are applied universally
and simultaneously to all members of the stack.
The Cisco Catalyst 3750 Series stacks up to nine switches as a single logical unit
for a total of 468 Ethernet or PoE 10/100 ports, or 468 Ethernet 10/100/1000 ports
or PoE 10/100/1000 ports, or nine 10 Gigabit Ethernet ports. Additional port combinations
can be created by connecting the Cisco Catalyst 3750-E Series Switches to the stack.
Individual 10/100, 10/100/1000, and 10 Gigabit Ethernet units can be joined in any
combination to evolve with network needs.
Return on Investment Through Lower Operations Costs
The automatic Cisco IOS Software version checking and loading of the global configuration
parameters provide the first level of operational time saving. The second level
is added during the event of an outage. When you remove a troubled switch from an
existing stack of switches and replace it with another switch, the master switch
will recognize this as a maintenance outage and automatically reload the port-level
configuration that was on the previous switch without user intervention. This allows
IT managers to have local personnel in remote locations perform maintenance tasks
instead of sending costly technicians out for a few minutes of work, thus saving
thousands of dollars in operational costs.
Mix-and-Match Switch Types: Pay as You Expand Your Network
Stacks can be created with any combination of Cisco Catalyst 3750 and Cisco Catalyst
3750-E switches. Customers who need a mixture of 10/100 and 10/100/1000 ports, PoE,
and wiring-closet aggregation capability can incrementally develop the access environment,
paying only for what they need. When uplink capacity needs to be increased, you
can easily upgrade your bandwidth by adding a 10 Gigabit Ethernet version to the
stack and upgrade your Gigabit Ethernet links with 10 Gigabit Ethernet on the existing
Integrated Wireless LAN Controller
The Cisco Catalyst 3750G Integrated Wireless LAN Controller integrates wireless
LAN controller functions into the Cisco Catalyst 3750G Series Switches and delivers
improved operating efficiency and WLAN security, mobility, and ease of use for business-critical
wireless LANs. The Cisco Catalyst 3750G Integrated Wireless LAN Controller delivers
centralized security policies, wireless intrusion prevention system (IPS) capabilities,
award-winning RF management, QoS, and Layer 3 fast secure roaming for WLANs. As
a core component of the Cisco Unified Wireless Network, the Cisco Catalyst 3750G
Integrated Wireless LAN Controller provides the control, security, redundancy, and
reliability that network managers need to scale and manage their wireless networks
as easily as they scale and manage their traditional wired networks.
Availability: Uninterrupted Performance at Layer 2 and Layer 3
The Cisco Catalyst 3750 Series increases availability for stackable switches. Each
switch can operate as both a master controller and a forwarding processor. Each
switch in the stack can serve as a master, creating a 1:N availability scheme for
network control. In the unlikely event of a single unit failure, all other units
continue to forward traffic and maintain operation.
Smart Multicast: A New Level of Efficiency for Converged Networks
With Cisco StackWise technology, the Cisco Catalyst 3750 Series offers greater efficiency
for multicast applications such as video. Each data packet is put onto the backplane
only once, which provides more effective support for more data streams.
Superior Quality of Service Across the Stack and at Wire Speed
The Cisco Catalyst 3750-E and 3750 Series offer Gigabit and 10 Gigabit Ethernet
speed with intelligent services that keep everything flowing smoothly, even at 10
times the normal network speed. Mechanisms for marking, classification, and scheduling
deliver best-in-class performance for data, voice, and video traffic, all at wire
Network Security: Granular Control for the Access Environment
The Cisco Catalyst 3750 Series supports a comprehensive set of security features
for connectivity and access control, including ACLs, authentication, port-level
security, and identity-based network services with 802.1x and extensions. This set
of comprehensive features not only helps prevent external attacks, but also defends
the network against "man-in-the-middle" attacks, a primary concern in today's business
Single IP Management: Many Switches, One Address
Each Cisco Catalyst 3750 Series stack is managed as a single object and has a single
IP address. Single IP management is supported for activities such as fault detection,
VLAN creation and modification, network security, and QoS controls.
Jumbo Frames: Support for High-Demand Applications
The Cisco Catalyst 3750 Series supports jumbo frames on the 10/100/1000 configurations
for advanced data and video applications requiring very large frames. All Cisco
Catalyst 3750-E Series switch models also support jumbo frames.
The Cisco Catalyst 3750 Series supports IPv6 routing in hardware for maximum performance.
As network devices grow and the need for larger addressing and higher security becomes
critical, the Cisco Catalyst 3750 Series will be ready to meet the requirement.
Standard PoE Support: Graceful Addition of IP Communications
The Cisco Catalyst 3750 and 3750G PoE models support Cisco IP phones and Cisco Aironet®
wireless LAN (WLAN) access points, as well as any IEEE 802.3af-compliant end device.
The Cisco Catalyst 3750 and 3750G 24-port versions can support 24 simultaneous full-powered
PoE ports at 15.4W for maximum powered device support. The 48-port versions can
deliver the necessary power to support 24 ports at 15.4W, 48 ports at 7.7W, or any
combination in between.
10 GB Ethernet Support: Increased Uplink Bandwidth for Gigabit Ethernet Deployments
The Cisco Catalyst 3750 Series allows network managers to incrementally add IEEE
802.3ae-compliant 10 Gigabit Ethernet connectivity in their wiring closets or grid
clusters, further facilitating and enhancing Gigabit Ethernet networks. This provides
investment protection to customers who want to use their existing fiber plant, add
uplink bandwidth capacity to their switching stacks, and provide higher performance
to applications and users. The Cisco Catalyst 3750-E Series offers an even greater
variety of 10 Gigabit Ethernet port configuration switches.
The Cisco Catalyst 3750 Series (Figure 5) offers both a superior command-line interface
(CLI) for detailed configuration and Cisco Network Assistant Software, a Web-based
tool for quick configuration based on preset templates. In addition, CiscoWorks
supports the Cisco Catalyst 3750 Series for networkwide management. Table 1 lists
the features and benefits of the Cisco Catalyst 3750 Series.