Thursday, November 5, 2009
Friday, October 30, 2009
Blog Sell
To whom It may concern,
Assignment Lanka Plan to Sell the Blog, details given below,
Value - $5000 only
other domains available to Sell
www.blogprotocol.com
Value - Negotiable
E-mail - sanjayaalwis@gmail.com or assignmentlanka@gmail.com
Contact No - +94773335203
Assignment Lanka Plan to Sell the Blog, details given below,
Value - $5000 only
other domains available to Sell
www.blogprotocol.com
Value - Negotiable
E-mail - sanjayaalwis@gmail.com or assignmentlanka@gmail.com
Contact No - +94773335203
Wednesday, October 21, 2009
Network Manager
Network management means different things to different people. In some cases, it involves a solitary network consultant monitoring network activity with an outdated protocol analyzer. In other cases, network management involves a distributed database, auto polling of network devices, and high-end workstations generating real-time graphical views of network topology changes and traffic. In general, network management is a service that employs a variety of tools, applications, and devices to assist human network managers in monitoring and maintaining networks.
Before or after implementing any Network It’s a duty for the Network Manager to handle it.The network manager is the person who takes decision regarding the network. This simple structure describes how the Network Manager’s authority dissolves among the subordinates It’s the duty of the Subordinate’s to report about various factors to the network manager. Also it’s the duty of the Network Manager to Report several things to the top management or to the chairmen. As a head of a Network, the Network Manager has many tasks to do when performing his profession.
Following are some Duties or Responsibilities of a Network Manager.
Coordinating Administrators Work
The Main Duties of the Network Manager can be divided into five sub units.
• Fault Management
• Configuration Management
• Account Management
• Performance Management
• Security Management
• Other Management Areas
o Hardware Management
o Software Management
Before or after implementing any Network It’s a duty for the Network Manager to handle it.The network manager is the person who takes decision regarding the network. This simple structure describes how the Network Manager’s authority dissolves among the subordinates It’s the duty of the Subordinate’s to report about various factors to the network manager. Also it’s the duty of the Network Manager to Report several things to the top management or to the chairmen. As a head of a Network, the Network Manager has many tasks to do when performing his profession.
Following are some Duties or Responsibilities of a Network Manager.
Coordinating Administrators Work
- All the Network, Database & System Administrators are subordinates of the Network Manager. Due to that the Network Manager will have to coordinate with them. The
- network manager will have to get various documents/reports from the administrators as they monitor some areas of the whole network.
- Reporting to the Top Management Regarding the Network
- The Network has to Report about various aspects of the network. He will need to get periodical reports on various factors which keep the network on line for utilization.
The Main Duties of the Network Manager can be divided into five sub units.
• Fault Management
• Configuration Management
• Account Management
• Performance Management
• Security Management
• Other Management Areas
o Hardware Management
o Software Management
CRASH FREE NETWORK
We can make crash free network to solve the problems which I given below.
• Using data traffic management and high speed equipments for does the network well. Normally switches are providing data management facility to the network. And using Ethernet stranded we can performed high speed for the network it might be can protect data packets.
• Using high speed cable type and using multiple caballing. We can use twisted pair cable for solving this problem and using high speed Ethernet cables e.g.: CAT 5e, CAT 6 etc. And use multiple lines for the caballing. The major thing is we want use high band width cables; most successful method is using Fiber Optic Cable for doing network but its given extra cost for the networking.
• Using high speed NIC for the networking. Adapter card should be high speed adapter card
because transferring data speed should be protected and the capacity of the NIC should be incise.
• Reduce the range between the computes and using repeaters and routes for amplify the data.
Data packets are not energy full for travel very long distances among the computers. So before made the network we want to reduce the range or else using the amplifier equipments for between computers. Those equipments are routers and repeaters.
• Using different wise network topologies. Net work topology is the other reason for the network crashing. So we can produce different network topologies for same network environment to solve the network crashing.
• Using data traffic management and high speed equipments for does the network well. Normally switches are providing data management facility to the network. And using Ethernet stranded we can performed high speed for the network it might be can protect data packets.
• Using high speed cable type and using multiple caballing. We can use twisted pair cable for solving this problem and using high speed Ethernet cables e.g.: CAT 5e, CAT 6 etc. And use multiple lines for the caballing. The major thing is we want use high band width cables; most successful method is using Fiber Optic Cable for doing network but its given extra cost for the networking.
• Using high speed NIC for the networking. Adapter card should be high speed adapter card
because transferring data speed should be protected and the capacity of the NIC should be incise.
• Reduce the range between the computes and using repeaters and routes for amplify the data.
Data packets are not energy full for travel very long distances among the computers. So before made the network we want to reduce the range or else using the amplifier equipments for between computers. Those equipments are routers and repeaters.
• Using different wise network topologies. Net work topology is the other reason for the network crashing. So we can produce different network topologies for same network environment to solve the network crashing.
Network Crash
In network environment lots of equipments take to make the connectivity between client and servers. Those equipments are transferring data each and every where in side the network. That data is transferring in data packet way.
In a huge network environment there is lots of equipment transferring lots of data packet at once. Some times some data packets are transferring very long distance inside the network and some times lot of data packet traveling inside one cable.
The summery of two paragraphs, the major point is considered about the data packet. We were preparing network Because of transferring data easily between the computers. We must considered about data packets and protect it. If we lost data mean network crash inside the network, in huge network this can be happen,
If we taking this example 1 picture there is a centralize HUB in that network. But the reason is with using HUB we can’t manage a network because it is not providing any traffic management in side the network.
And another point for the cables, if we take coaxial cable for this does this network it is not possible because inside the network environment magnetic affect, long distances can happen if we use coaxial for the ca balling some time data me be lost of that reason.
If the distances is higher we can’t transferring data because if range is high data might be lost by traveling. NIC is another major point is does the network. Because some NIC’s are not speed that mean it is not transferring large capacity of data packet that is a reason for lost the data.
In a huge network environment there is lots of equipment transferring lots of data packet at once. Some times some data packets are transferring very long distance inside the network and some times lot of data packet traveling inside one cable.
The summery of two paragraphs, the major point is considered about the data packet. We were preparing network Because of transferring data easily between the computers. We must considered about data packets and protect it. If we lost data mean network crash inside the network, in huge network this can be happen,
If we taking this example 1 picture there is a centralize HUB in that network. But the reason is with using HUB we can’t manage a network because it is not providing any traffic management in side the network.
And another point for the cables, if we take coaxial cable for this does this network it is not possible because inside the network environment magnetic affect, long distances can happen if we use coaxial for the ca balling some time data me be lost of that reason.
If the distances is higher we can’t transferring data because if range is high data might be lost by traveling. NIC is another major point is does the network. Because some NIC’s are not speed that mean it is not transferring large capacity of data packet that is a reason for lost the data.
Gigabit Ethernet
Before inception Xerox Corporation in 1970s, Ethernet has been the dominant networking protocol. If we take all protocols Ethernet has, by far, the highest number of installed ports and provides the greatest cost performance relative to token Ring, Fiber Distributed Data Interface (FDDI), and ATM for desktop connectivity. And those Ethernet provide their connectivity from 10 to 100 megabit per second (Mbps).
Gigabits Ethernet build on top of the Ethernet protocol that mean it provide it service speed increases by tenfold over. It is a logical choice for low-cost, high-performance network upgrade, providing unparalleled speed and ease of management. The Gigabit Ethernet provides speed from 1000 megabit per second or 1 gigabit per second (Gaps). This protocol performed high-speed connectivity like lightning; it is gaining more and more presence in the server connectivity market. Network administrators require higher network performance to cope with the increasingly data intensive applications, backup, and software distributions or desktop, educational system. Which is the one success point of the network connection; customers will be able to leverage their existing knowledge base to manage and maintain gigabit networks. In
future it will be more than one gigabit.
Gigabits Ethernet build on top of the Ethernet protocol that mean it provide it service speed increases by tenfold over. It is a logical choice for low-cost, high-performance network upgrade, providing unparalleled speed and ease of management. The Gigabit Ethernet provides speed from 1000 megabit per second or 1 gigabit per second (Gaps). This protocol performed high-speed connectivity like lightning; it is gaining more and more presence in the server connectivity market. Network administrators require higher network performance to cope with the increasingly data intensive applications, backup, and software distributions or desktop, educational system. Which is the one success point of the network connection; customers will be able to leverage their existing knowledge base to manage and maintain gigabit networks. In
future it will be more than one gigabit.
Friday, October 16, 2009
iphone wifi
Wireless instructions for iPhone and iTouch setups
Make sure your device has an active connection to the internet.
1. Go to Settings
2. Select Wi-Fi
3. Choose Other…
4. The Name of the network..........
5. Security is WPA Enterprise
6. Your Username and Password
7. After you enter your Username and Password, select Join
8. It may take a moment, but your device should connect to the WIFI network *if* it is available in your location.
Make sure your device has an active connection to the internet.
1. Go to Settings
2. Select Wi-Fi
3. Choose Other…
4. The Name of the network..........
5. Security is WPA Enterprise
6. Your Username and Password
7. After you enter your Username and Password, select Join
8. It may take a moment, but your device should connect to the WIFI network *if* it is available in your location.
windows vista wireless
How to connect a Vista computer to a wireless network using WLAN AutoConfig This document will serve as a guide for Microsoft Vista clients in joining a wireless network using WLAN AutoConfig service.
What is WZC or WLAN AutoConfig?
Wireless Zero Configuration (WZC) or WLAN AutoConfig is a service included with modern versions of Microsoft Windows that dynamically selects a wireless network to connect to base on a user's preferences and various settings. This can be used instead (or in the absence) of a wireless network utility from the manufacturer of a computer's wireless networking device.
To join a wireless network:
1. Open the Start menu and click Control Panel. 2. In the Control Panel Home window, click View network status and tasks.
2.If you are using Classic View, double- click Network and Sharing Center.
3. Click Connect to a network.
4. Select your network from the list and click Connect.
5.If security is enabled on the network, you will be asked to type your network security key or passphrase for your router. After typing security key, click Connect.
6.After typing the correct security key, you should be connected to your router. Click Close.
7.You can select a location profile for your network or skip it by clicking Cancel.
8.You are now ready to connect to the Internet.
What is WZC or WLAN AutoConfig?
Wireless Zero Configuration (WZC) or WLAN AutoConfig is a service included with modern versions of Microsoft Windows that dynamically selects a wireless network to connect to base on a user's preferences and various settings. This can be used instead (or in the absence) of a wireless network utility from the manufacturer of a computer's wireless networking device.
To join a wireless network:
1. Open the Start menu and click Control Panel. 2. In the Control Panel Home window, click View network status and tasks.
2.If you are using Classic View, double- click Network and Sharing Center.
3. Click Connect to a network.
4. Select your network from the list and click Connect.
5.If security is enabled on the network, you will be asked to type your network security key or passphrase for your router. After typing security key, click Connect.
6.After typing the correct security key, you should be connected to your router. Click Close.
7.You can select a location profile for your network or skip it by clicking Cancel.
8.You are now ready to connect to the Internet.
Thursday, October 15, 2009
Hybrid topologies
Different topologies may be interconnected to form subnets to a main network. It is possible, for example, to connect a star, a hub and a ring together beneath another star topology network.
Tree
A tree topology is a variation on a star. In this case the central hub might connect to a number of secondary hubs forming a sort of hierarchy of stars. Secondary hubs may be passive or active devices. An active hub acts as a repeater and amplifier for the signals in each direction. This is ideal for networks with remote nodes as link distances can be effectively lengthened without attenuation. A passive hub supplies connections only between the next hub and the nodes below.
Advantages:
- Secondary hubs increase the number of devices that may be part of the network
- Hubs can be used to prioritize and isolate traffic on different parts of the network.
- Other advantages as per star topology
Subscribe to:
Posts (Atom)
YouTube Videos
