Benefits of Cisco Supervisor Engines

Supervisor Engine is a module that is installed in the used network hardware Chassis-based Catalyst Switches or Routers. Supervisor engine contains nearly all the same components of a fixed Cisco Switches or Routers. These Supervisor engines come in a variety of different types with different functionalities and are installed in the Switches/Router Chassis as per requirements of the network types.

Benefits of Supervisor Engines
•    By installing Latest Supervisor Engines in your existing investments (Switches and Routers) you can scale system performance and integrate next-generation services into your Networks.
•    Within a single multilayer switch chassis, two supervisor modules with integrated route processors can be used to provide hardware redundancy. If an entire supervisor module fails, the other module can pick up the pieces and continue operating the switch

The supervisor engine contains the following integrated daughter cards that perform forwarding and routing and provide the cisco used equipment protocols supported on the router.

Policy Feature Card (PFC) is the forwarding plane and does the following:
•    Performs Layer 2 and Layer 3 forwarding.
•    Enforces access control list (ACL) functions.
•    Performs policing and marking for quality of service (QoS) traffic.
Multilayer Switch Feature Card (MSFC) is the control plane and does the following:
•    Performs routing for the chassis. The MSFC contains the route processor (RP) and Switch processor (SP) for the router.
•    Runs Layer 2 and Layer 3 protocols, such as the Spanning Tree Protocol (STP) and others.

You can View a 3D model of Catalyst 6500 Switch, here you can see how the Catalyst Switch 6500 looks like, Mount/Demount Supervisor engines, and other inserted modules, view short details of them by demounting from Chassis.

The Cisco Supervisor Engine is the heart of many of  cisco used equipment  switches. The Supervisor Engine has evolved several times. While it is the management segment of many routers, the power of the switch is often much greater than that of the Supervisor Engine because one of the features of many switches is that dozens of the functions are accelerated by ASIC chips.
Abridged list of features:
    802.1q VLAN
    Spanning Tree Protocol
    Ether Channel
    Jumbo Frames
    (E)IGRP, OSPF, RIP (2), Static Routing
    BGP, IS-IS
    QOS
    Some have Layer 3 & 4 Switching
Specifications of Supervisor Engine
Supervisor Engine    Mpps[1]
Switching Layer    Bandwidth[2]
CPU Frequency    Max Ram    Max Flash    OS    Minimum IOS
1    15    2    1.2-32    25 MHz Motorola 68k    128MB    16MB    CatOS    N/A
2    30    2    18    150 MHz Mips R4700    128MB    16MB    CatOS    N/A
2+    48    4    64    266 MHz R4700    256MB    32MB    CatOS/IOS   
3    15    4     ?    150-300 MHz    256MB     ?    IOS    12.1(8a)
4    48    4    64    333 MHz    512MB    64MB    IOS    12.1(12c)
5    136    4    102    400-800 MHz    512MB     ?    IOS    12.2(18)
6    250    4    320    1.3 GHz    1GB     ?    IOS    12.2(40)
720        5    720    400/200 (MHz?)    1GB    64MB    CatOS/IOS   
32        5                    IOS   

Supervisor Engine I
    68EC040
    Chassis: 2900, 2948G, 2980G, 4000, 4500, 5000, 5500, 6000, 6500, 7600
Supervisor Engine II
    MIPS R4700
    Chassis: 2926, 4000, 4500, 5000, 5500, 6000, 6500, 7600
Supervisor Engine II+
    MIPS R4700
    Cisco Express Forwarding
    Chassis: 2926, 4000, 4500, 5000, 5500, 6000, 6500, 7600
Supervisor Engine III
    Cisco Express Forwarding
    Max DRAM: 256MB SD
    Redundant Capable
    Netflow accelerator card
Supervisor Engine IV
    Cisco Express Forwarding
    Max Flash: 64MB (supplemental Compact Flash optional)    Supervisor Engine V
    Cisco Express Forwarding
    Chassis: 4500
Supervisor Engine 6
    Cisco Express Forwarding
    Chassis: 4500 "E" Series
Supervisor Engine 32
    Cisco Express Forwarding
    Chassis: 6000, 6500
    A low cost, reduced version of the 720
    Policy Feature Card 3b
    MSFC 2A?
Supervisor Engine 720
    Cisco product Express Forwarding
    Policy Feature Card 3A, 3B, 3BXL
    Chassis: 6500, 7600
MSFC1-3
    Multi-Layer Switch Feature Card

Types of Cisco Voice over IP Phones

With the proliferation of Voice over IP (VoIP) telephone technologies, sell cisco used IP Phones have become a popular choice because of an extensive selection of models covering a wide range of needs. While they employ features specific to the Cisco VoIP servers, these phones can also be used with "open source" VoIP technologies. As the phones progress toward the Cisco 9900 series, more features become available. The models listed here range from basic cubicle phones to sophisticated phones that include video conferencing capabilities.

Cisco 6900 IP Phone Series
This series of phones includes models with the same basic features, but the phones are distinguished by their line capacity, which ranges from two to 12. The 6900 series phone offers lighted hold and menu keys as well as a lighted call-waiting indicator. The series includes a speakerphone and interface for headsets. This entry-level phone offers a graphical display that can display basic images such as a corporate logo. The display also features scrollable menu selections to access additional features.

Cisco 7900 IP Phone
The cisco sell 7900 series includes a large number of models for specialized business needs. A brief survey of these models includes models 7910, 11 and 12. These phones are sets that offer minimal features. The phones in this model line are designed for common areas such as lobbies, classrooms or individual cubicles. The 7920 class includes all phones designed for mobile use. They are wireless models that connect to networks via the 802.11b and 802.11g protocols. The 7935, 36 and 37 are conference-station models that include external microphones and features suited to conduct corporate conference calls. The 7985 is a videophone that includes a high-quality camera and XGA computer LCD monitor.

Cisco Unified IP Phone 8900 Series
This series is described by Cisco as "an advanced professional media endpoint that delivers an enhanced user experience with an easy-to-use and eco-friendly ergonomic design." These phones feature high definition voice and video quality with a fast gigabyte network interface. In addition, they include VGA color computer-style displays and an external USB port. The 8900 series hosts a full feature set including programmable buttons, LEDs and the ability to handle as many as five call sessions simultaneously.

Cisco Unified IP Phone9900 Series
This series makes up selling cisco equipment highest-end phones. The series is described by the company as "an advanced collaborative media endpoint that provides voice, video, applications and accessories." The 9971, for example, features video conferencing as well as wired or wireless operation through 802.11g and Bluetooth. The LCD touch screen offers VGA resolution for ease of use and customization. These phone models are designed for high-end corporate executives and business administrators.

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The Benefits of VoIP Cisco
Voice over Internet Protocol (VoIP) telephony offers more communication options than other types of business telephone systems. VoIP works over the business computer data network, and does not need to have a separate communications network installed like other phone systems do. Because VoIP is Internet based, it works like a computer or laptop, and is given an independent IP address. This means that VoIP telephones can work from any location, and can integrate voice mail, video conferencing, or change any phone voice communication into data communication, so long as there is a connection to the Internet or the corporate network.

Cost Savings
An obvious benefit to VoIP is overall call cost. Corporations that have VoIP have the same low-cost phone calls even when facilities are located internationally. Because communications are processed through Internet data lines, this cost is usually just a few cents per call.

VoIP also offers equipment cost savings, installation and repair service savings, and expansion cost savings. With VoIP, all the phone communications issues can be handled by the internal IT (Information Technology) department, which means there is a significant manpower cost savings too.

Convenience
VoIP offers more varied customer service options like Website calling, Website call-back options, and video conferencing. Voice mail is also better organized through VoIP technology, and can be sent directly to the appropriate employee's email inbox to be dealt with at the appropriate time.

A VoIP system makes it easier to keep track of call data, by easily managing call information and converting it to a data file. Information like customer name, address, phone number, issue and solution is stored on the corporate computer hard drive, and can later be referenced by customer service agents or management at any time.

Expandability
Most businesses, no matter what their size, need some type of call center function. Under normal circumstances, every time a new call center station is set up, there is a cost, and most phone providers will not just sell the necessary equipment for one station, but instead, will sell a package of a certain number of phone installations. cisco hardware With VoIP, a business can expand by as much or as little as it needs to. A business can add just one phone station, or a dozen, in a matter of a few minutes, and these can be located in the corporate offices, or at any off-site location, like an employee's home.

Basic Cisco Router Configuration Steps

This post is by no means an exhaustive tutorial about cisco 3800 router and how to configure their numerous features. It is just a step-by-step guide for the most basic configuration needed to make the router operational. When you first power on a new Cisco Router, you have the option of using the “setup” utility which allows you to create a basic initial configuration. However, in this post I will show you how to do this basic setup with the Command Line Interface (CLI). Mastering the Cisco Router CLI is essential for more complex configuration tasks and it is the most important knowledge you should acquire if you want to become a Cisco network administrator.

The basic CLI modes that we will be referring below are as following:
Router>  <– User EXEC Mode
Router#  <– Privileged EXEC mode
Router(config)#  <– Global Configuration Mode
Router(config-if)# <– Interface Configuration Mode
Router(config-line)# <– Line Configuration Mode

I assume that you already have some basic knowledge of CLI and how to navigate between different configuration modes (user mode, privileged exec mode etc), so let’s get started:

Step1: Configure Access Passwords
The first step is to secure your access to the router by configuring a global secret password and also passwords for Telnet or Console as needed.
Enter into Global Configuration mode from the Privileged EXEC mode:
Router# configure terminal  <– Privileged EXEC mode
Router(config)#  <– Global Configuration Mode

In Global Configuration Mode you configure parameters that affect the whole router device. Here we will configure the Enable Secret password that you will be using from now own to enter into Privileged EXEC Mode from User EXEC Mode.

Router(config)#  enable secret“somestrongpassword”

From now on, when you log in from user EXEC mode you will be asked for a password.
It is suggested also to configure a password for the Telnet Lines (VTY lines) which will secure your access when connecting via Telnet over the network.

Router(config)#  line vty 0 4
Router(config-line)# password “strongTelnetPass” 
Router(config-line)# login

Step2: Configure a Router Hostname
To differentiate your Router from other devices in the network, you should configure a Hostname for your device.

Router(config)#  hostname My-Router
My-Router(config)#

Notice that your cisco 3825 router prompt changes to the new hostname that you have just set.

Step3: Configure IP addresses for Router Interfaces
This is an essential step in order for your router to be able to forward packets in the network. The most basic parameter for a Router Interface is the IP address. From Global Configuration Mode you need to enter into Interface Configuration Mode:

My-Router(config)# interface serial 1/1
My-Router(config-if)# ip address 100.100.100.1 255.255.255.252
My-Router(config-if)# no shutdown
My-Router(config-if)# exit
My-Router(config)# interface fastethernet 0/1
My-Router(config-if)# ip address 192.168.10.1 255.255.255.0
My-Router(config-if)# no shutdown
My-Router(config-if)# exit

Step4: Configure Routing (Static or Dynamic)
The Router’s main purpose is to find the best route path towards a destination network and forward packets according to the best path. There are two main ways a router knows where to send packets. The administrator can assign static routes, or the router can learn routes by using a dynamic routing protocol. For simple network topologies, static routing is preferred over dynamic routing. Let’s see how to configure static cisco3825 router from Global Configuration Mode.

My-Router(config)#  ip route [destination network] [subnet mask] [gateway]  
My-Router(config)#  ip route 200.200.200.0 255.255.255.0 100.100.100.2

The command above tells the router that network 200.200.200.0/24 is reachable via gateway address 100.100.100.2.

Another popular static route that we usually configure on Internet Border routers is the default static route:

My-Router(config)#  ip route 0.0.0.0 0.0.0.0 50.50.50.1
The default static route above instructs the router to send ALL packets that the router does not have a more specific route entry to gateway address 50.50.50.1 (which might be the ISP gateway address).

Step5: Save your configuration
Save your current running configuration into NVRAM.CISCO2811-AC-IP This will overwrite the startup configuration.

My-Router(config)# exit
My-Router# copy running-config startup-config

You can display your current configuration to verify your settings as following:

My-Router# show running-config

Cisco’s New Healthpresence Focuses on Rural India

• 

A village woman in K'taka is shown using Cisco’s HealthPresence. (photo courtesy of Cisco)

• U.S. technology giant Cisco Nov. 14 unveiled the second generation of its platform for telemedicine, known as Healthpresence, focusing its efforts on India where at least 175 million rural dwellers lack access to any health care services.
  Healthpresence allows physicians in several countries to remotely conduct consultations with patients who may be hundreds of miles away. In India, private hospitals, the defense sector and state governments in Karnataka and Madhya Pradesh have signed on to use Healthpresence; the service is already available in 11 districts and can be accessed by up to one million people.
  “In India, there’s a huge mismatch between the availability of doctors and where they’re needed,” Vishal Gupta, vice president and general manager of wholesale Cisco Global Healthcare Solutions, told India-West by teleconference from Bangalore, where he is based. Patients must often travel hundreds of miles to see a physician, he said, noting that the need for doctors and specialists is most acute in rural India.
  “We want to be the ATM of healthcare services,” said Gupta, envisioning Healthpresence kiosks in a variety of rural and semi-urban settings, such as malls.
  An earlier version of the product, which was released two years ago, required Cisco’s Telepresence, a high bandwidth platform. But the version of Healthpresence rolled out buy Cisco last week can be used on low bandwidth platforms, including desktop computers.
  Healthpresence 2.0 features the flexibility to be used across several platforms, from a high-end Telepresence-based system, to a low bandwidth version which is portable and can be used in a mobile medicine van, said Gupta, noting that bandwidth is still an issue in many remote parts of India.
  The new version of Healthpresence can be maintained on a server by a service provider who provides repairs and updates to the system, eliminating the need for an in-house IT specialist and lowering the overall cost, said Gupta.
  Healthpresence patients sit in a special consulting room – known as a primary health care center - which has a screen allowing them to see their doctor, and specialized diagnostic equipment including a digitized stethoscope which allows a doctor to listen to his patient’s heart and lungs remotely.
  A digitized torch and otoscope allow the physician to remotely examine a patient’s ears, nose and throat.
  Healthpresence can also be used by specialists.
  Sunita Maheshwari, a Bangalore-based pediatric cardiologist and founder of RxDx, which uses Healthpresence to connect to patients in the low-income district of Raichur in northen Karnataka, said Cisco’s product works very well in telemedicine.
  “We were skeptical at first, wondering will rural India’s villages accept such technology. But they’re really thrilled because they have a doctor out there for the first time,” the Indian American Maheshwari, who was trained at Yale, told India-West.
  RxDx remote clinics provide primary care doctors from 9 a.m. to 5 p.m. on a walk-in basis, and appointments can be made for consultations with specialists. The clinic has a staff of 70 physicians, with a mix of specialties, including pediatrics, and serves about 600 patients a month in Raichur, which is an overnight train journey from Bangalore.
  Maheshwari – dubbed the “Queen of Hearts” by India Today magazine – said she hopes to next hook up with practices in remote states such as Bihar to provide Healthpresence services there. She estimated that one-quarter of India’s 700 million village dwellers – 175 million people – currently lack access to any healthcare services.
  The Osmania University alumnus said the desktop version of Healthpresence was very scalable and could be used anywhere. “I could be sitting anywhere and treating patients not just in Raichur, but also in Tanzania,” she asserted.
  The need for access to healthcare in India has gone up phenomenally with the advent of chronic diseases in the population. The country accounts for 60 percent of the world’s heart disease patients, according to data released last year by the World Health Organization, and is home to 35 million diabetics, the largest number on the globe.
  Cancer is also on the rise with almost 400,000 people in India dying each year from various types of the disease. The overall oncology market is growing at about 20 percent per annum, Pradeep Jaisingh, founder and CEO of New Delhi-based International Oncology, told India-West in June.
  Gupta stated that the Indian government has shown its commitment to telemedicine, promising to increase funding to public health care.
  And in September, Sachin Pilot, India’s young Minister of Communications and Information Technology, unveiled a plan that would lay out 500,000 miles of optical fibre throughout the country, bringing high-speed connectivity to every remote area of India within the next two years.

How to Save/Keep the Cisco 3560 Switch Configuration

Network switches play an integral role in computer networks by connecting all the devices on the network, enabling communication. Switches can be simple or complex, ranging from small, four-port home office devices with limited management interfaces to complex, catalyst 3560 48 port-enterprise level devices with dedicated memory, processors and operating systems. When dealing with complex models, network administrators spend hours configuring each individual device to the exacting specifications required by their network. As with any piece of important data, these configurations need to be backed up.

What You Will Need While Saving the Cisco 3560 Switch Config

• Cisco 3560 switch
• Computer with serial port
• Rollover cable
• Terminal emulation software (PuTTY)

How to Save the Cisco 3560G Switch Configuration

Connect to the Switch

1. Plug your computer into the switch with a rollover cable. This cable has a RJ-45 jack on one end and a serial connection on the other. Plug the RJ-45 end into the "CONSOLE" port of the switch, and the serial end into your computer.

2. Download and install a terminal program called PuTTY to connect to the switch (see Resources).

3. Open the terminal emulation software. In PuTTY, select "Serial" in the "Category" box on the left, then select the correct COM port in the "Serial line to connect to" box. Click "Open" to open the command line of the switch. The command line is a text-based interface for the switch. It has a prompt where you can enter commands to change settings and configurations.

Save the Configuration

1. Type "enable" at the command line, then press return on the keyboard to enter into "privileged exec mode." The switch prompt should change from "Switch>" to "Switch#, then you can enter the next command.

2. Type "copy running-config startup-config" at the command line and press return on the keyboard. This will copy the current switch configuration to the non-volatile memory, which is memory that will retain its data even without power applied to it.

3. Type "show running-config" to display the current configuration.

4. Click and hold at the beginning of the output from the "show running-config" command, then drag down to the bottom of the PuTTY window.cisco 3560E switch  This should select all the text on the screen.

5. Right-click and select "Copy" to copy the text.

6. Click on "Start" and "Run," then type "notepad.exe" in the dialog box. Click "OK" to bring up the notepad program.

7. Click on "Edit" and "Paste" to put the switch configuration into notepad.

8. Click "File" and "Save" to save the file to your desktop. You now have a backup of your switch configuration that will be around even if your switch goes bad.

Tips & Warnings

The command "copy running-config startup-config" can be shortened to "copy run start."

Cisco 1800 Series, Business Router for Small to Medium Sized Business/Enterprise

Cisco 1800 Series Integrated Services Routers, the next evolution of the award-winning Cisco 1700 Series modular access routers, own more advantages than the formers. Cisco 1800 series, ideal for small to medium-sized businesses and small enterprise branch offices, cisco 1841 enable businesses to reduce costs by deploying a single, resilient system for fast, secure, delivery of multiple mission-critical business services, including data, security, unified communications, wireless.

Cisco 1800 series router has several models including 1801, 1802, 1803, 1811, 1812, 1841(most popular), 1861, all of them have some common features: a. Designed for small businesses or branch offices and to offer secure wireless networking; b. Multiple performance options based on local, remote, cisco 1800 series or broadband connections; c. Integrated security including encryption and protection against hackers; d. Virtual private networks for linking to partners, suppliers, and remote offices; e. Multiple options for adding reliability and option for reduced costs by using power from network cabling; f. Software upgrades to add new features and functions, and integrated switching capabilities.

Cisco 1800 series router has several models including 1801, 1802, 1803, 1811, 1812, 1841(most popular), 1861. You can check details of every type as follows:

The fixed platform models (1801, 1802, 1803, 1811, 1812) include multiple WAN interface options, plus:

• Up to broadband speeds
• Eight 10/100 Mbps built-in switch ports with optional Power over Ethernet (PoE), for providing DC power to network devices such as IP phones
• Up to 50 VPN tunnels
• Support for wireless local-area network (LAN) standards 802.11a/b/g

The 1841 is a modular platform with a wide range of interface options, plus:

• Up to T1/E1speeds
• Up to four 10/100 Mbps built-in switch ports
• Up to 800 VPN tunnels cisco 1800 series router
• Support for wireless local-area network (LAN) standards 802.11a/b/g

The 1861 is a modular platform built on a fixed base with a wide range of WAN interface options, plus: 

• Integrated Cisco Unified Communications Manager Express or Cisco Unified Survivable Remote Site Telephony for call processing
• Cisco Unity Express, for voice messaging and automated attendant
• Integrated LAN switching with Power over Ethernet (PoE) expandable through Cisco Catalyst Switches
• Onboard voice ports for PSTN, PBX, and key system connections

With Cisco 1800 Series integrated services routers; you can lay the foundation for future growth and prepare for voice, video, wireless, and security solutions tomorrow. 1800 series router

If you want to know more about e about the certain type of Cisco 1800 series, you can visit the list of Cisco 1800 router series, prices also offered.

Cisco 1800 Series Models Details…

1800 Series Model	Key Benefits	Type of Connection	Numberof VPN Users
1801	Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices	Broadband over traditional phone lines	50
1802	Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices	Broadband over ISDN lines	50
1803	Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices	Broadband	50
1811	Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices	Ethernet, Fast Ethernet	50
1812	Provide secure access to the Internet and reduce costs by enabling deployment of a single device to provide multiple services typically performed by separate devices	Ethernet, Fast Ethernet	50
1841	Highly expandable for addition of other network capabilities	Broadband, Ethernet, Fast Ethernet	800
1861	Modular design allows for addition of other network capabilities	Ethernet, Fast Ethernet	Up to 8

Cisco 3825 Integrated Services Router, for Small and Medium Business

Cisco 3825，a hot member of CISCO 3800 series, can intelligently embed data, security, and voice services into a single, resilient system for fast, scalable delivery of mission-critical business applications.

CISCO3825-AC-IP router features the ability to deliver multiple high-quality simultaneous services at wire speed up to multiple T1/E1/xDSL connections. And it offersembedded encryption acceleration and on the motherboard voice digital-signal-processor (DSP) slots; intrusion prevention system (IPS) and firewall functions; optional integrated call processing and voice mail support; high-density interfaces for a wide range of connectivity requirements; and sufficient performance and slot density for future network expansion requirements and advanced applications. CISCO3825-VMSS/K9

More Features and Details of Cisco 3825

Device TypeMulti ServiceRouter

Enclosure Type  Desktop - modular - 1U

Connectivity Technology  Wired

Data Link Protocol  Ethernet, Fast Ethernet

Network / Transport ProtocolIPSec

Remote Management Protocol  SNMP 3

Encryption Algorithm  DES, Triple DES, AES

Features  Hardware encryption, MPLS support

RAM  128 MB (installed) / 384 MB (max)

Flash Memory  64 MB (installed) / 128 MB (max) CISCO3825-WAE/K9

Communications

Type  DSU/CSU

Expansion / Connectivity

Interfaces  2 x 10Base-T/100Base-TX - RJ-45 ¦ USB : 1 x ¦ 1 x auxiliary ¦ Management : 1 x console

Expansion Slot(s)  2 (total) / 2 (free) x HWIC ¦ 2 (total) / 2 (free) x AIM ¦ 2 (total) / 2 (free) x PVDM ¦ 1 (total) / 1 (free) x WIC ¦ 1 (total) / 1 (free) x VIC ¦ 1 memory ¦ 1 CompactFlash Card

Power

Power Device  Power supply - internal

Voltage Required  AC 120/230 V ( 50/60 Hz )

Miscellaneous

Width  43.8 cm

Depth  41.9 cm

Height  4.5 cm

Weight  6.2 kg

Compliant Standards  CISPR 22 Class A, CISPR 24, EN 61000-3-2, VCCI Class A ITE, IEC 60950, EN 61000-3-3, EN55024, EN55022 Class A, UL 60950, EN50082-1, CSA 22.2 No. 60950, AS/NZ 3548 Class A, JATE, FCC Part 15, ICES-003 Class A, CS-03, EN 61000-6-2 CISCO3825-AVG-32

Software / System Requirements

OS Provided  Cisco IOS

OS Required  Microsoft Windows 98 Second Edition

Environmental Parameters

Min Operating Temperature  0 °C

Max Operating Temperature  40 °C

Humidity Range Operating  10 - 85%

Price and Availability

Product detail: Cisco 3825 router 3825 w/AC PWR, 2FE, 4slots (2HWIC), 2PVDM, 2AIM, IP BASE, 64F/128 CISCO3825-DC

Conditions: New Sealed

List Price: US$9,500.00

Wholesale Price: US$3,990.00

You Save: US$5,510.00 (58.00% OFF)

Supplier: Router-switch.com (Yejian Technology)

Email: cisco@router-switch.com (Sales Inquiries)

 webmaster@router-switch.com (Technical Inquiries)

Tel: +852-3755-6766 (Hong Kong)

Fax:+852-3050-1066 (Hong Kong)

MSN:cisco@router-switch.com.

Website:http://www.router-switch.com/