Overview



Cisco 500 Series Stackable Managed Switches
Advanced for Demanding Environments, at an Affordable Price.
Your business is growing, and that means more customers, more opportunities, and more attention on your company. The only problem: Your network was built for a smaller operation. As you add more devices, applications, and users, your IT environment will become increasingly difficult and expensive to manage. Even worse, as the network becomes more complex and overloaded, your users are likely to see sluggish performance and even outages.

With more customers and employees depending on your business than ever before, a slow or unreliable network is simply not an option. You need an IT backbone that provides excellent performance, nonstop availability, and advanced security. The ideal network will be easy to manage, even as it supports more advanced features, and will be designed to grow with your company. And it is available at a price you can afford.

Cisco 500 Series Stackable Managed Switches
The Cisco® 500 Series Stackable Managed Switches are a new line of stackable managed Ethernet switches that provide the advanced capabilities you need to support a more demanding network environment, at an affordable price. These switches provide 24 or 48 ports of Fast Ethernet and 24 to 52 ports of Gigabit Ethernet connectivity with optional 10 Gigabit uplinks, providing a solid foundation for your current business applications, as well as those you are planning for the future. At the same time, these switches are easy to deploy and manage, without a large IT staff.

Cisco 500 Series switches are designed to protect your technology investment as your business grows. Unlike switches that claim to be stackable but have elements which are administered and troubleshot separately, the Cisco 500 Series provides true stacking capability, allowing you to configure, manage, and troubleshoot multiple physical switches as a single device and more easily expand your network. The Cisco 500 Series switch offer models which are fanless making it one of the industry’s first in stackable switches, thereby delivering increased reliability, power efficiency, and minimizing noise.

A true stack delivers a unified data and control plane, in addition to management plane, providing flexibility, scalability, and ease of use since the stack of units operate as a single entity constituting all the ports of the stack members. The switches also protect your technology investment with an enhanced warranty, dedicated technical support, and the ability to upgrade equipment in the future and receive credit for your Cisco 500 Series switch. Overall, the Cisco 500 Series provides the ideal technology foundation for a growing business.

and Benefits
Cisco 500 Series switches provide the advanced feature set that growing businesses require, and that high-bandwidth applications and technologies demand. These switches can improve the availability of your critical applications, protect your business information, and optimize your network bandwidth to more effectively deliver information and support applications. The switches provide the following benefits.

Easy Deployment and Use
Cisco 500 Series switches are designed to be easy to use and manage by small businesses or the partners that serve them. They feature:

- Simple-to-use graphical interfaces reduce the time required to deploy, troubleshoot, and manage the network and allow you to support sophisticated capabilities without increasing IT head count.
- The switches also support Textview, a full command-line interface (CLI) option for partners that prefer it.
- Using Auto Smartports intelligence, the switch can detect a network device connected to any port and automatically configure the optimal security, quality of service (QoS), and availability on that port.
- Cisco Discovery Protocol (CDP) discovers Cisco devices and allows devices to share critical configuration information, simplifying network setup and integration.
- Support for Simple Network Management Protocol (SNMP) allows you to set up and manage your switches and other Cisco devices remotely from a network management station, improving IT workflow and mass configurations.
- The Cisco FindIT utility, which works through a simple toolbar on the user’s web browser, discovers Cisco devices in the network and displays basic information, such as serial numbers and IP addresses, to aid in configuration and deployment.

High Reliability and Resiliency
In a growing business where 24x7 availability is critical, you need to assure that employees can always access the data and resources they need. In these environments, stackable switches can play an important role in eliminating downtime and improving network resiliency. For example, if a switch within a Cisco 500 Series stack fails, another switch immediately takes over, keeping your network up and running. You can also replace individual devices in the stack without taking your network offline or affecting employee productivity.

The Cisco 500X models provide an additional layer of resiliency with support for the Virtual Router Redundancy Protocol (VRRP). VRRP lets you extend the same resiliency that stacking provides for individual switches to complete network domains. By running VRRP between two stacks, you can instantly cut over from one stack to another in the event of a problem, and continue operating even after a failure.

The Cisco 500 Series also supports dual images, allowing you to perform software upgrades without having to take the network offline or worry about the network going down during the upgrade.

Simplified IT Operation
Cisco 500 Series switches help optimize your IT operations with built-in features that simplify and streamline day-to-day network operation:
- True stacking allows you to troubleshoot, configure, and manage multiple physical switches as a single entity.
- Unlike other stacking switches that require uniform configurations, the Cisco 500 Series allows you to mix Fast Ethernet, Gigabit Ethernet, and 10 Gigabit Ethernet models in a single stack, providing total flexibility without sacrificing manageability.
- Cisco switches use common chipsets'software across all switching portfolios, so all Cisco switches within a category support the same feature set – making it easier to manage and support all switches across the network.

True Stacking
Some switches claim to support stacking but in practice support only “clustering” – meaning that each switch must still be managed and configured individually. Cisco 500 Series switches provide true stacking capability, allowing you to configure, manage, and troubleshoot all switches in a stack as a single unit, with a single IP address.

A true stack delivers a unified data and control plane, in addition to management plane, providing flexibility, scalability, and ease of use since the stack of units operate as a single entity constituting all the ports of the stack members. This capability can radically reduce complexity in a growing network environment while improving the resiliency and availability of network applications. True stacking also provides other cost savings and administrative benefits through features such as cross-stack QoS, VLANs, and port mirroring, which clustered switches can’t support.

Strong Security
Cisco 500 Series switches provide the advanced security features you need to protect your business data and keep unauthorized users off the network:
- Embedded Secure Sockets Layer (SSL) encryption protects management data traveling to and from the switch.
- Extensive access control lists (ACLs) restrict sensitive portions of the network to keep out unauthorized users and guard against network attacks.
- Guest VLANs let you provide Internet connectivity to nonemployee users while isolating critical business services from guest traffic.
- Support for advanced network security applications such as IEEE 802.1X port security tightly limits access to specific segments of your network. Web based authentication provides a consistent interface to authenticate all types of host devices and operating systems, without the complexity of deploying IEEE 802.1X clients on each endpoint.
- Advanced defense mechanisms, including dynamic Address Resolution Protocol (ARP) inspection, IP Source Guard, and Dynamic Host Configuration Protocol (DHCP) snooping, detect and block deliberate network attacks. Combinations of these protocols are also referred to as IPMB (IP-MAC- port binding)
- IPv6 First Hop Security extends the advanced threat protection to IPv6. This comprehensive security suite includes ND inspection, RA guard, DHCPv6 guard and neighbor binding integrity check, providing unparalleled protection against a vast range of address spoofing and man in the middle attack on IPv6networks.
- Time based ACLs and Port Operation restrict access to the network during predesignated times, such as business hours.
- Uniform MAC address-based security can be applied automatically to mobile users as they roam between wireless access points.
- Secure Core Technology (SCT) helps ensure that the switch is able to process management traffic in the face of a denial of service attack.
- Private VLAN Edge (PVE) provides Layer 2 isolation between devices on the same VLAN.
- Storm control can be applied to broadcast, multicast, and unknown unicast traffic.
- Protection of management sessions using Radius, TACACS+ and local database authentication as well as secure management sessions over SSL, SSH, and SNMPv3.
- DoS (denial-of-service) attack prevention maximizes network uptime in the presence of an attack.

Networkwide Automatic Voice Deployment
Using a combination of CDP, LLDP-MED, Auto Smartports, and VSDP (Voice Services Discovery Protocol – a unique Cisco protocol), customers can deploy an end-to-end voice network dynamically. The switches in the network automatically converge around a single voice VLAN and QoS parameters and then propagate them out to the phones on the ports where they are discovered. For example, automated voice VLAN capabilities let you plug any IP phone (including third-party phones) into your IP telephony network and receive an immediate dial tone. The switch automatically configures the device with the right VLAN and QoS parameters to prioritize voice traffic.

IPv6 Support
As the IP address scheme evolves to accommodate a growing number of network devices, the Cisco 500 Series can support the transition to the next generation of networking and operating systems such as Windows 7, Vista, and Linux. These switches continue to support previous-generation IPv4, allowing you to evolve to the new IPv6 standard at your own pace, and helping ensure that your current network will continue to support your business applications in the future. Cisco 500 Series switches have successfully completed rigorous IPv6 testing and have received the USGv6 and IPv6 Gold certification.

Advanced Layer 3 Traffic Management
The Cisco 500 Series enables a more advanced set of traffic management capabilities to help growing businesses organize their networks more effectively and efficiently. For example, the switches provide static LAN Layer 3 routing, allowing you to segment your network into workgroups and communicate across VLANs without degrading application performance.

With these capabilities, you can boost the efficiency of your network by offloading internal traffic-handling tasks from your router and allowing it to manage primarily external traffic and security.

Cisco 500X models go even farther, providing dynamic Layer 3 routing features. With these capabilities, you can minimize the need to manually configure routing devices and simplify the ongoing operation of the network.

Power Efficiency
The Cisco 500 Series integrates a variety of power-saving features across all models, providing the industry’s most extensive energy-efficient switching portfolio. These switches are designed to conserve energy by optimizing power use, which helps protects the environment and reduce your energy costs. They provide an eco-friendly network solution without compromising performance. Cisco 500 Series switches feature:
- Support for the Energy Efficient Ethernet (IEEE 802.3az) standard, which reduces energy consumption by monitoring the amount of traffic on an active link and putting the link into a sleep state during quiet periods.
- The latest application-specific integrated circuits (ASICs), which use low-power 65-nanometer technology and low power high performance ARM CPUs.
- Automatic power shutoff on ports when a link is down.
- LEDs can be turned off to save power.
- Embedded intelligence to adjust signal strength based on the length of the connecting cable.

Expandability
The Cisco 500 Series provides more ports per Gigabit Ethernet switch than traditional switch models, giving you more flexibility to connect and empower your business. Gigabit Ethernet models feature 28- and 52-port switches, versus traditional devices that offer 20 or 44 ports, with 4 shared ports giving you more value. The Cisco 500 models offer 1G and 1G/5G Ethernet expansion slots, and the Cisco 500X models offer 10 Gigabit Ethernet expansion slots. As your business adds new applications, devices, and more bandwidth, you retain the flexibility to expand and interconnect your network infrastructure intelligently and efficiently, and reduce bottlenecks.

Peace of Mind and Investment Protection
Cisco 500 Series switches offer the reliable performance and peace of mind you expect from a Cisco switch. When you invest in the Cisco 500 Series, you gain the benefit of:
- Limited lifetime warranty with next-business-day (NBD) advance replacement (where available, otherwise same day ship).
- A solution that has been rigorously tested to help ensure optimal network uptime to keep employees connected to key resources and productive.
- A solution designed and tested to easily and fully integrate with other Cisco voice, unified communications, security, and networking products, as part of a comprehensive technology platform for your business.




Specification


Technical Description: CISCO SG500-28 28-PORT GIGABIT STACKABLE MANAGED

Certificates
Certification:
UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A

Certification
Certification:
UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A

Data transmission
Packet buffer memory:
1 MB
Jumbo frames support:
Yes
Number of queues:
8
Throughput:Rate at which data can be transferred.
41.67 Mpps
Switching capacity:The data transfer capacity of the switch per second.
72 Gbit/s
MAC address table:The MAC address is the 'Media Access Control Address'. It is a unique address given to a network interface controller (NIC) in a device. A MAC address table shows the addresses in a table format.
16384 entries

Design
LED indicators:
Yes
Product colour:
Black
Stackable:Devices can be placed on top of each other.
Yes
Rack mounting:The type of mounting that can position devices in a shelving system (rack).
Yes

Management features
MIB support:
Yes
System event log:
Yes
Web-based management:Using a website/web application to manage something.
Yes
Quality of Service (QoS) support:
Yes
Switch layer:A network switch is a computer networking device that links networking segments. A switch has different layers, such as layer 2 (a network bridge, operating at the data link layer, interconnecting a small number of devices) and layer 4 (can act as a firewall, amongst other things).
L2/L3
Switch type:What switch device has, managed or unmanaged.
Managed

Multicast features
Multicast support:
Yes

Network
Number of VLANs:
4096
VLAN support:A Virtual Local Area Network (VLAN) consists of a group of computers and switches that can be physically distributed over different networks and buildings, but form one LAN on a logical level.
Yes
Broadcast storm control:
Yes
Flow control support:
Yes
Head-of-line (HOL) blocking:
Yes
Link aggregation:
Yes
Rate limiting:
Yes
Spanning tree protocol:
Yes
IP routing:
Yes
Port mirroring:
Yes
10G support:The product can use Oracle 10G, which is a database management system introduced in 2003.
No
Networking standards:The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3at, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z

Networking
Number of VLANs:
4096
VLAN support:A Virtual Local Area Network (VLAN) consists of a group of computers and switches that can be physically distributed over different networks and buildings, but form one LAN on a logical level.
Yes
Broadcast storm control:
Yes
Flow control support:
Yes
Head-of-line (HOL) blocking:
Yes
Link aggregation:
Yes
Rate limiting:
Yes
Spanning tree protocol:
Yes
IP routing:
Yes
Port mirroring:
Yes
10G support:The product can use Oracle 10G, which is a database management system introduced in 2003.
No
Networking standards:The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3at, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z

Operational conditions
Heat dissipation:The heat generated by the power supply.
74.2 BTU/h
Storage relative humidity (H-H):
10 - 90%
Operating relative humidity (H-H):
10 - 90%
Storage temperature (T-T):The minimum and maximum temperatures at which the product can be safely stored.
-20 - 70 °C
Operating temperature (T-T):The minimum and maximum temperatures at which the product can be safely operated.
0 - 50 °C

Packaging content
Quick start guide:Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.
Yes
Cables included:
AC, Serial

Performance
Minimum system requirements:
Firefox 8+ IE 7+ Safari Chrome
Mean time between failures (MTBF):Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
141161 h
Compatible operating systems:List of desktop operating systems tested as compatible with this product.
Windows Linux Mac OS X
Firmware upgradeable:
Yes
Flash memory:
32 MB
Internal memory:The amount of memory, usually measured in bytes (e.g. MB, GB), which is installed in the system's hardware.
256 MB
Processor frequency:The clock rate is the fundamental rate in cycles per second (measured in hertz) at which a computer performs its most basic operations such as adding two numbers. There are more factors, like internal memory size, that influence a computer's actual response time.
800 MHz
Processor model:The model number for the processor in a computer.
ARM
Built-in processor:
Yes

Ports & interfaces
SFP module slots quantity:
2
Combo SFP ports quantity:
2
Basic switching RJ-45 Ethernet ports type:The type/category of basic switching RJ-45 Ethernet ports (sockets).
Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity:The number of basic switching RJ-45 Ethernet ports (sockets).
24

Power
Power consumption (typical):Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
23.6 W
AC input frequency:
47/63 Hz
AC input voltage:The voltage of the AC electricity that is inpitted into the product.
110 - 240 V

Power over Ethernet (PoE)
Power over Ethernet (PoE):The device supports Power over Ethernet (PoE), which is one of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.
No

Protocols
Supported network protocols:Network protocols tested as compatible with this product e.g. FTP,HTML, POP.
IPv4, IPv6, TCP, TFTP, RIPv2, VRRPv2, VRRPv3, UDP, BOOTP/DHCP, ICMP, SNTP, LLDP, CDP, Bonjour, Telnet
Management protocols:
SNMPv1, SNMPv2, SNMPv3, IGMPv1, IGMPv2, IGMPv3

Security
MAC address filtering:Security access control method whereby the 48-bit address assigned to each network card is used to determine access to the network. MAC addresses are uniquely assigned to each card, so using MAC filtering on a network permits and denies network access to specific devices through the use of blacklists and whitelists.
Yes
Security algorithms:Security algorithms are used to provide authentication, cipher key generation, integrity and radio link privacy to users on mobile networks. The security algorithms supported are the ones that can be used with this product.
802.1x RADIUS, HTTPS, MD5, SSH, SSH-2, SSL/TLS
SSH/SSL support:
Yes
Static port security:
Yes
Access Control List (ACL):
Yes
DHCP features:
DHCP server, DHCP client

Weight & dimensions
Weight:Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
3.4 kg
Height:The measurement of the product from head to foot or from base to top.
44 mm
Depth:The distance from the front to the back of something.
257 mm
Width:The measurement or extent of something from side to side.
440 mm


Product details


SG500-28-K9 Cisco

CISCO SG500-28 28-PORT GIGABIT STACKABLE MANAGED

£107.90 and

SKUSG500-28-K9

CISCO SG500-28 28-PORT GIGABIT STACKABLE MANAGED

Quick Code: Q3219183 MPN: SG500-28-K9

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