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Cisco Catalyst 3750-X Series Switches  
รหัส : Catalyst 3750-X
ยี่ห้อ : Cisco
รายละเอียดย่อ :
Cisco Catalyst 3750-X Series Switches are enterprise-class stackable switches. They provide high availability, scalability, security, energy efficiency, and ease of operation with innovative features such as Cisco StackPower, Power over Ethernet Plus (PoE+), optional network modules, redundant power supplies, and MAC security.
รายละเอียดทั้งหมด :

The Cisco® Catalyst® 3750-X and 3560-X Series Switches are an enterprise-class lines of stackable and standalone switches, respectively. These switches provide high availability, scalability, security, energy efficiency, and ease of operation with innovative features such as Cisco StackPower, IEEE 802.3at Power over Ethernet Plus (PoE+) configurations, optional network modules, redundant power supplies, and Media Access Control Security (MACsec) features. The Cisco Catalyst 3750-X Series with StackWise® Plus technology provides scalability, ease of management and investment protection for the evolving business needs. The Cisco Catalyst 3750-X and 3560-X enhance productivity by enabling applications such as IP telephony, wireless, and video for borderless network experience.

Cisco Catalyst 3750-X and 3560-X Series primary features:
In addition to the above features, the Cisco Catalyst 3750-X switches also offer:

Switch Configurations

All switch models can be configured with the optional four GbE or two 10 GbE network module. The switch models are available with either the LAN Base or IP Base feature set. IP Services feature set is available as an upgrade option at the time of ordering or through a license at a later time.

Stackable Switches

Figure 1 shows the Cisco Catalyst 3750-X Series Switches (front and back).

Figure 1. Cisco Catalyst 3750-X Series Switches (Front and Back)

Table 1 shows the Cisco Catalyst 3750-X Series configurations.

Table 1. Cisco Catalyst 3750-X Series Configurations

Feature Set

Models

Total 10/100/1000 Ethernet Ports

Default AC Power Supply

Available PoE Power

StackPower

LAN Base

WS-C3750X-24T-L

24

350W

-

Available with upgrade
to IP Base

WS-C3750X-48T-L

48

WS-C3750X-24P-L

24 PoE+

715W

435W

WS-C3750X-48P-L

48 PoE+

WS-C3750X-48PF-L

48 PoE+

1100W

800W

IP Base

WS-C3750X-24T-S

24

350W

-

Yes

WS-C3750X-48T-S

48

WS-C3750X-24P-S

24 PoE+

715W

435W

WS-C3750X-48P-S

48 PoE+

WS-C3750X-48PF-S

48 PoE+

1100W

800W

 

Standalone Switches

Figure 2 shows Cisco Catalyst 3560-X Series Switches.

Figure 2. Cisco Catalyst 3560-X Series Switches

Table 2 shows the Cisco Catalyst 3560-X Series configurations.

Table 2. Cisco Catalyst 3560-X Series Configurations

Feature Set

Models

Total 10/100/1000 Ethernet Ports

Default AC Power Supply

Available PoE Power

LAN Base

WS-C3560X-24T-L

24

350W

-

WS-C3560X-48T-L

48

WS-C3560X-24P-L

24 PoE+

715W

435W

WS-C3560X-48P-L

48 PoE+

WS-C3560X-48PF-L

48 PoE+

1100W

800W

IP Base

WS-C3560X-24T-S

24

350W

-

WS-C3560X-48T-S

48

WS-C3560X-24P-S

24 PoE+

715W

435W

WS-C3560X-48P-S

48 PoE+

WS-C3560X-48PF-S

48 PoE+

1100W

800W

 

Cisco Catalyst 3750-X and 3560-X Series Software

In addition to IP Base and IP Services feature sets, the Cisco Catalyst 3750-X and 3560-X Series come with a new LAN Base feature set. The three feature sets available with all Cisco Catalyst 3750-X and 3560-X Series Switches are:
The LAN Base feature set offers enhanced intelligent services that includes comprehensive Layer 2 features. The IP Base feature set provides baseline enterprise services in addition to all LAN Base features. IP Base also includes the support for routed access, StackPower, and MACsec. The IP Services feature set provides full enterprise services that includes advanced Layer 3 features such as Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), Border Gateway Protocol (BGP), Protocol Independent Multicast (PIM), and IPv6 routing such as OSPFv3 and EIGRPv6. IP Services feature set also includes the Embedded Event Manager (EEM) and IP service-level agreements (SLAs) initiator functionalities. All software feature sets support advanced security, QoS, and management features. The IP Services feature set is only available as an upgrade option at the time of ordering or through a license at a later time; there is no dedicated IP Services switch model.
The Cisco Catalyst 3750-X Series Switches with LAN Base feature set can only stack with other Cisco Catalyst 3750-X Series LAN Base switches. A mixed stack of LAN Base switch with IP Base or IP Services features set is not supported.
Customers can transparently upgrade the software feature set in the Cisco Catalyst 3750-X and 3560-X Series Switches through Cisco IOS® Software activation. Software activation authorizes and enables the Cisco IOS Software feature sets. A special file contained in the switch, called a license file, is examined by Cisco IOS Software when the switch is powered on. Based on the license's type, Cisco IOS Software activates the appropriate feature set. License types can be changed, or upgraded, to activate a different feature set. For detailed information about Software Activation, visit http://www.cisco.com/go/sa.

Cisco StackWise Plus Technology

Cisco StackWise Plus technology is built on the highly successful industry leading StackWise technology, which is a premium stacking architecture optimized for GbE. StackWise technology was designed to respond to additions, deletions, and redeployment while maintaining constant performance. The stack behaves as a single switching unit that is managed by a master switch elected from one of the member switches. The master switch automatically creates and updates all the switching and optional routing tables. A working stack can accept new members or delete old ones without service interruption. StackWise creates a highly resilient single unified system of up to nine switches, providing simplified management using a single IP address, single telnet session, single command-line interface (CLI), auto-version checking, autoconfiguration, and more. StackWise Plus supports all the features of StackWise and provides backward compatibility with the existing Cisco Catalyst 3750 Series Switches while enhancing the throughput of the system up to 64 Gbps. StackWise Plus also enables local switching in Cisco Catalyst 3750-X Series Switches. Local switching packets coming into a port in the Cisco Catalyst 3750-X Series or 3750-E Series Switch destined for another port in the same switch do not have to traverse through the stack ring, thus increasing the forwarding capacity of the switch. The Cisco Catalyst 3750-X Series stacks up to nine switches as a single logical unit for a total of 432 Ethernet 10/100/1000 ports with 18 10GbE ports. Individual 10/100/1000 units can be joined in any combination to evolve with network needs.

Cisco StackPower Technology

The Cisco Catalyst 3750-X Series introduces Cisco StackPower technology, innovative power interconnect system that allows the power supplies in a stack to be shared as a common resource among all the switches. Cisco StackPower unifies the individual power supplies installed in the switches and creates a pool of power, directing that power where it is needed. This feature is only available in the Cisco Catalyst 3750-X Series Switches with IP Base or IP Services feature set. Up to four switches can be configured in a StackPower stack with the special connector at the back of the switch using the StackPower cable, which is different than the StackWise cables available on all Cisco Catalyst 3750 models. (See Figure 3.)

Figure 3. StackPower Connector

StackPower can be deployed in either power sharing mode or redundancy mode. In power sharing mode, the power of all the power supplies in the stack is aggregated and distributed among the switches in the stack. In redundant mode, when the total power budget of the stack is calculated, the wattage of the largest power supply is not included. That power is held in reserve and used to maintain power to switches and attached devices when one power supply fails, enabling the network to operate without interruption. Following the failure of one power supply, the StackPower mode becomes power sharing.
StackPower allows customers to simply add one extra power supply in any switch of the stack and provide either power redundancy for any of the stack members or simply add more power to the shared pool. StackPower eliminates the need for an external redundant power system or installation of dual power supplies in all the stack members.

Network Module

Figure 4 shows network module with four GbE or two 10GbE SFP+ interfaces.

Figure 4. Network Module with Four GbE or Two 10GbE SFP+ Interfaces

The Cisco Catalyst 3750-X Series and 3560-X Series Switches support an optional network module for uplink ports. The default switch configuration doesn't include the uplink module; the customer has the flexibility to choose from four GbE port (3KX-NM-1G) or two 10GbE port (3KX-NM-10G) network module at the time of switch purchase. The 10GbE uplink module features four physical ports with two SFP+ and two regular SFP ports. The SFP+ interface supports both 10GbE and GbE port, allowing customer to use their investment in GbE SFP and upgrade to 10GbE when business demands change, without having to do a comprehensive upgrade of the access switch. The uplink module is hot swappable. The 10GbE network module can be used in any of the combinations shown in Table 3.

Table 3. 10GbE Network Module Configuration

10GbE Network Module

10GbE SFP+ Ports

GbE SFP Ports

2

0

0

4

1

2

 

MACsec

The Cisco Catalyst 3750-X and 3560-X Series Switches offer exceptional security with integrated hardware support for MACsec defined in IEEE 802.1AE. MACsec provides MAC layer encryption over wired networks using out-of-band methods for encryption keying. The MACsec Key Agreement (MKA) protocol provides the required session keys and manages the keys required for encryption when configured. MKA and MACsec are implemented following successful authentication using 802.1x Extensible Authentication Protocol (EAP) framework. In Cisco Catalyst 3750-X and 3560-X Series Switches only the user/down-link ports (links between the switch and endpoint devices such as a PC or IP phone) can be secured using MACsec.

Dual Redundant Modular Power Supplies

The Cisco Catalyst 3750-X Series and 3560-X Series Switches support dual redundant power supplies. The switch ships with one power supply by default, and the second power supply can be purchased at the time of ordering the switch or at a later time. If only one power supply is installed, it should always be in the power supply bay 1.

Figure 5. Dual Redundant Power Supplies

Table 4 shows the different power supplies available in these switches and available PoE power.

Table 4. Power Supply Models

Models

Default Power Supply

Available PoE Power

24 Port Data Switch

C3KX-PWR-350WAC

-

48 Port Data Switch

24 Port PoE Switch

C3KX-PWR-715WAC

435W

48 Port PoE Switch

48 Port Full PoE Switch

C3KX-PWR-1100WAC

800W

 

In addition to the above power supplies a 440W DC power supply is available as a configurable option on all switch models. The DC power supply also delivers 175W of PoE for maximum flexibility, and customers can mix and match the AC and DC power supplies in the two available power supply slots. Any of these power supplies can be installed in any of the switches.

Power over Ethernet Plus (PoE+)

In addition to PoE 802.3af, the Cisco Catalyst 3750-X and 3560-X Series Switches support PoE+ (IEEE 802.3at standard), which provides up to 30W of power per port. The Cisco Catalyst 3750-X and 3560-X Series Switches can provide a lower total cost of ownership for deployments that incorporate Cisco IP phones, Cisco Aironet® wireless LAN (WLAN) access points, or any IEEE 802.3af-compliant end device. PoE removes the need for wall power to each PoE-enabled device and eliminates the cost for additional electrical cabling and circuits that would otherwise be necessary in IP phone and WLAN deployments. Table 5 shows the power supply combinations required for different PoE needs.

Table 5. Power Supply Requirements for PoE and PoE+

 

24 Port PoE Switch

48 Port PoE Switch

PoE (15.4W per port)

One C3KX-PWR-715WAC

One C3KX-PWR-1100WAC

or

Two C3KX-PWR-715WAC

PoE+ (30W per port)

One C3KX-PWR-1100WAC

or

Two C3KX-PWR-715WAC

Two C3KX-PWR-1100WAC

or

One C3KX-PWR-1100WAC and One C3KX-PWR-715WAC




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