Showing posts with label Network. Show all posts
Showing posts with label Network. Show all posts
Friday, January 16, 2009 | Posted in


The world is becoming one global community where it is possible contact with one another through the use computer and the Internet. Keeping in touch with a loved one who is in a far away place or in the other side of the planet, right at the comfort of your home was never thought possible until today. With the increasing number of people traveling through the information highways or the cyberspace one thing is made necessary to keep and to provide oneself with, security.

Infringement of ones security is becoming one big issue that has come to the consciousness of every American who is willing to defend his or her security. Violation of ones security is so pervasive that it happens anywhere even in those fiber optic data transmission dependent technologies, thus fiber optics security system, is selling like hotcakes in the U.S. market.


More and more companies are finding ways to create a foolproof fiber optic technology in transmitting data to almost any part of the world. National security is at stake if highly organized group whose ideology is to topple a country down has intruded the Intelligence network of ones nation, thus crippling the economy and other vital pillars of the country. This concern calls for an efficient fiber optics security system.

Large multinational corporations are always on the lookout for fresher and more technologically advanced fiber optics security system in order to protect the company from the intrusion of other competitors that hacks into their fiber optics powered installations. Any fiber optic expert can intercept data transmitted into fiber optics pathway, by intruding into fiber optics lines without getting noticed.

American Tech Supply and Opterna have championed the cause in providing possible solution to fiber optic data transmission line intrusion. It has successfully invented what they call Fiber Sentinel, a system that will disable any hacker to get into the fiber optic system of an organization. The concept at play is that the Fiber Sentinel system guards the organizations data transmission center from hackers or intruders, once the hacker is detected, the system will automatically reroute the hackers path away from the transmission line. After it is done the system will then notify that an intruder has been denied access. This innovation in fiber optics security system is only available to the National Defense Department of the U.S.

For the corporate world, Magiq Technologies Inc. has launched a fiber optics security system, which they named as Navajo Security gateway. The system works by sending an unhackable transmitted data into the fiber optic transmission lines. Quantum physics play a pivotal role in securing data from being intruded, a genius in fiber optics security system.

In a world where terrorism threatens ones security depending on ones security is of paramount importance, and fiber optics has done its fair share of the responsibility.

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Thursday, January 15, 2009 | Posted in


Although the average consumer has only recently begun to discover the joys of Bluetooth technology, it has been around for quite a while now. The fact that it has been around means that there are quite a few products that are now able to support and utilize this technology and those numbers are growing each year. Currently you can find many Bluetooth supported laptops, cell phones, and PDAs.

The recently discovered technology that Bluetooth offers uses short range radio signals in order to replace wires and cables that were once required to transfer information from one device to another. The most hallowed capabilities of this technology is its use friendly lack of complexity, its ability to hold a true connection without constant interruptions, its lower power consumption, and its affordability. Bluetooth was made to operate in areas where 'noisy' frequencies often prevent other wireless connections to flourish. Bluetooth uses a fast acknowledgement and 'frequency hopping' application in order to maintain a smooth connection.


Bluetooth radio frequencies move at 2.4 GHz, which requires no licensing in order to use. Using this particular frequency allows the avoidance of interruptions from other frequencies and signals. Bluetooth radio also moves much more quickly than other similar systems because it utilizes shorter packets.

Although the average consumer has only recently begun to discover the joys of Bluetooth technology, it has been around for quite a while now. The fact that it has been around means that there are quite a few products that are now able to support and utilize this technology and those numbers are growing each year. Currently you can find many Bluetooth supported laptops, cell phones, and PDAs.

The recently discovered technology that Bluetooth offers uses short range radio signals in order to replace wires and cables that were once required to transfer information from one device to another. The most hallowed capabilities of this technology is its use friendly lack of complexity, its ability to hold a true connection without constant interruptions, its lower power consumption, and its affordability. Bluetooth was made to operate in areas where 'noisy' frequencies often prevent other wireless connections to flourish. Bluetooth uses a fast acknowledgement and 'frequency hopping' application in order to maintain a smooth connection.

Bluetooth radio frequencies move at 2.4 GHz, which requires no licensing in order to use. Using this particular frequency allows the avoidance of interruptions from other frequencies and signals. Bluetooth radio also moves much more quickly than other similar systems because it utilizes shorter packets.

History of Bluetooth
Bluetooth can be traced to the King of Denmark from 949 to 981. Harold Bluetooth was famous for his ability to help people communicate with one another more effectively. The characters on the Bluetooth logo come from characters in the runic alphabet. The reference to this particular king is somehow appropriate as Bluetooth technology also accomplishes the often-difficult task of keeping people connected and communicating effectively.

Bluetooth.org defines Bluetooth as a worldwide specification low cost radio solution. This small factor enables the communication of mobile devices with one another.

Bluetooth operates by using 2.4 GHz radio signals that are very similar to those used in many cordless home phones and wireless networking systems. Bluetooth has found a manner in which to limit interference while improving the quality of the transmission because of its heavy reliance on this frequency range. Bluetooth version 1.1 has made leaps and bounds in progress and as a result is not backwards compatible with previous versions.

The maximum rate at which Bluetooth can transfer data is 723 kbps and a range of anywhere from 60 to 120 feet. Bluetooth can be used for a wide variety of applications. Some of the more common current applications include laptops, PDAs, headphones, and printer adapters. Many laptops have Bluetooth adapters built in so that the laptop can easily communicate with other Bluetooth enabled devices. You can also use many USB adaptors in order to communicate with devices that are not graced with a Bluetooth adaptor.

Another great benefit of Bluetooth is the fact that it allows PDAs to easily sync wirelessly as well as to transfer data. Bluetooth is useful in headphones for cell phones in particular to allow hands free, wireless cell phone communication while driving, working, or performing any number of tasks that require the use of your hands.

Many new gadgets are wireless through the technologies that Bluetooth has introduced. A Bluetooth mouse and/or keyboard can be used at a distance of up to 30 feet for those who need to be farther ways from the computer. Bluetooth printer adaptors are particularly useful as they allow multiple users in a network to share printer access without a snake pit of wires to really confuse things.

While Bluetooth is inexpensive to use, the main reason it isn't more widely used is the initial costs required to implement this technology. The initial costs of installing a Bluetooth system are somewhat prohibitive and most companies aren't prepared to make this sort of investment in emerging technology.

Bluetooth can be traced to the King of Denmark from 949 to 981. Harold Bluetooth was famous for his ability to help people communicate with one another more effectively. The characters on the Bluetooth logo come from characters in the runic alphabet. The reference to this particular king is somehow appropriate as Bluetooth technology also accomplishes the often-difficult task of keeping people connected and communicating effectively.

Bluetooth.org defines Bluetooth as a worldwide specification low cost radio solution. This small factor enables the communication of mobile devices with one another.

Bluetooth operates by using 2.4 GHz radio signals that are very similar to those used in many cordless home phones and wireless networking systems. Bluetooth has found a manner in which to limit interference while improving the quality of the transmission because of its heavy reliance on this frequency range. Bluetooth version 1.1 has made leaps and bounds in progress and as a result is not backwards compatible with previous versions.

The maximum rate at which Bluetooth can transfer data is 723 kbps and a range of anywhere from 60 to 120 feet. Bluetooth can be used for a wide variety of applications. Some of the more common current applications include laptops, PDAs, headphones, and printer adapters. Many laptops have Bluetooth adapters built in so that the laptop can easily communicate with other Bluetooth enabled devices. You can also use many USB adaptors in order to communicate with devices that are not graced with a Bluetooth adaptor.

Another great benefit of Bluetooth is the fact that it allows PDAs to easily sync wirelessly as well as to transfer data. Bluetooth is useful in headphones for cell phones in particular to allow hands free, wireless cell phone communication while driving, working, or performing any number of tasks that require the use of your hands.

Many new gadgets are wireless through the technologies that Bluetooth has introduced. A Bluetooth mouse and/or keyboard can be used at a distance of up to 30 feet for those who need to be farther ways from the computer. Bluetooth printer adaptors are particularly useful as they allow multiple users in a network to share printer access without a snake pit of wires to really confuse things.

While Bluetooth is inexpensive to use, the main reason it isn't more widely used is the initial costs required to implement this technology. The initial costs of installing a Bluetooth system are somewhat prohibitive and most companies aren't prepared to make this sort of investment in emerging technology.

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Wednesday, January 14, 2009 | Posted in


RIP (Routing Information Protocol) is a distant vector routing protocol. RIP algorithm has been in use since the early days of ARPAnet. Currently, there are 2 versions of RIP, which are known as Routing Information Protocol version 1 (RIPv1) and Routing Information Protocol version 2 (RIPv2). More information about RIPv1 can be found on (RFC1058) and more information about RIPv2 can be found on (RFC 1723). RIPv1 supports only classful routing and RIPv2 uses classless routing. This means RIPv2 support Variable length Subnet Mask (VLSM).

RIP is a UDP based protocol that uses port 520 for all communication. RIP was designed for small to medium sized networks. RIP uses hop count as a metric. RIP supports maximum 15 hops. The maximum size of RIPv1 or RIP2 packet is 512 octets. RIP has the administrative distance of 120.


Route Update Timer

Every 30 seconds, a Cisco router will send a RIP update out every interface that has a RIP network attached to it. Each update contains the entire routing table of the sending router. When another router on the network receives the update, it adds any new routes to its routing table or will replace a route if the update has a lower hop count for that route.

Route Invalid Timer

Route invalid timer is 180 seconds. If router does not receive any update about a particular router for that period, then router will find out that this route has become invalid.

Route Flush Timer

Sets the time between a route becoming invalid and its removal from the routing table (240 seconds).

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Monday, January 12, 2009 | Posted in


Ethernet, Fast Ethernet, FDDI and Token Ring often referred to as traditional LAN, and they are sharing media, sharing of bandwidth shared LAN. In order to increase bandwidth, often using a network router division, will be divided into a network of more than one paragraph, each of the networks have different sub-address, different broadcasting domain, to reduce conflicts on the network, increase network bandwidth. Micro-paragraph of the network can not meet the LAN extension and the new high-bandwidth network applications to the demand, it is said that "traditional local area network has come to an end".

In recent years the exchange processes-LAN technology, to address shared by the LAN network inefficient and can not provide adequate network bandwidth and network expansion and a series of difficult issues. It fundamentally changed the structure of shared local area network, to solve the bandwidth bottleneck. At present, the exchange of Ethernet, token ring exchange, the exchange of FDDI and ATM, such as the exchange of local area networks, Ethernet one of the most extensive exchange. LAN exchange has become the mainstream LAN technology.


Switches provide the ability to bridge the existing network and increase bandwidth capabilities.

For the LAN switches on the bridge with similar because they all operate in the data link layer (level 2), M A C-layer, the inspection of all network traffic into the device address. And the bridge still has some similar switch to maintain an address on the table and used the information to decide how to filter and forward LAN flow.

And bridge different, switches using technology to increase the exchange of data input and output media and installation of the total bandwidth. General switch delay small forward, the economy and can be divided into small network of conflict domain, for each workstation to provide higher bandwidth.

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Thursday, January 08, 2009 | Posted in


With the advancement of Technology and Internet there is an urge for satellite communication in the entire world. ME is getting quite advanced in Technology and Wireless Internet through Satellite Services. ME has performed unexceptionally well in past few years and has built a status in the international market in field of Internet and Satellite services.

There are a number of best satellite service providers available in this competitive market. You have a wide choice among different Satellite service providers who offer you great broadband speed and wireless internet services. In ME where you find computer in almost every house, the need for Internet is also increasing day-by-day.


Whether it is your workplace where you and your whole organization uses computers for their daily transactions in ME or your home where you individually handle a computer, an Internet connection has assisted a lot, and if it is a Wireless Satellite Service in ME to provide you high speed broadband connectivity it sums up more to your benefit.

An effective wireless Satellite Service requires an efficient set-up for it to take up the enormous job precisely. The Satellite Services set up in ME provide additional advantages such as video conferencing, data communication, VOIP Services, video communication etc. along with the uninterrupted high speed broadband satellite services.

Along with the Internet link the other things taken into contemplation is the uninterrupted speedy services and if there are non-stop interruptions or if the download speed is low, it becomes clear that there wont be a simple communication and the interest to work is also lost. Any company or organization in ME would opt for a high speed non-interrupted broadband connectivity which is provided by Satellite services in ME.

The Satellite Services finally help people to stay connected with each other 24x7x365 and hence provides customer contentment to the fullest. Let it be a small Business company or a big corporate office or any organization, in ME everyone would choose persistent and continuous Internet connectivity with good speed and without breaks and to avail all these facilities it is an excellent decision to choose wireless Satellite Internet services.

Horizon Satellite Services in ME generally offer you tailored rural high speed internet services that assisy you to get prompt and high stage results. The rural high speed internet service facilitates bandwidth which is flexile and conveniently adjusted so that it fulfillsaccomplishes your requirements consequently. Thistype of efficient service via satellite is done through iSatellite platform, which is developed by ECC coding and this coding is supported by DVBS2 last mile technology.

Satellite Services in ME have fulfilled their objective by offering fabulous and exceptional services, ME and the Cologne continuously supervise and organize the performance of the Satellite services so as to offer the most efficient and effective wireless high speed broadband services, hence giving you a capability to link anybody anywhere in this entire world.

Now comes the cost structure, the pricing structure is very affordable as compared to its speed and services provided by Satellite services in ME. It provides the highest number of advantages and different promotional activity that usually suit almost all the wants form the customers and that too at reasonable prices. Wireless services, high speed connectivity, broadband, scalability, developmental facts and many other unequalled features set Satellite Services a class apart.

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