Wednesday, November 30, 2011

Point to Point WAN: The Most Effective Way for Branch To Branch Transaction and Communication

point to point wan

For large companies operating in a much larger scale in many areas, office to office transactions and communications could be much critical but the Point to Point WAN technology is the best solution for this dilemma. In fact, a lot of business owners now consider this technology to enhance company communications and delivery of basic transactions between their branches anywhere in the country. Well, company owners and top executives were right because Point to point WAN technology is the best so far than other emerging technologies in the market.

The Point to point WAN as you probably know, is consisting of links and connections that is capable of effectively serving interconnection between branch offices, partners, vendors, remote workers and all other services that this technology is capable of doing. In this way, the method of communications is enhanced and companies with lots of branches can improve their productivity in every office. Aside from that, vital transactions between each branch can be carried in a more convenient way as compared to not having the point to point WAN technology.

Although the implementations of point to point WAN technology maybe difficult for IT personnel in the beginning but continues learning and education to this new technology is certainly the best motivation for this. IT personnel can be assisted carefully by IT experts for the fast sure way learning process. I believe that IT personnel will learn more about this technology in due time so that company executives must take extra patients. You must remember that it would be difficult for the IT personnel and engineers in your company to easily adapt each new technology, considering that there were lots of technologies in the market today that they also need to learn. The point to point WAN is only one of those fast emerging technologies.

In a point to point WAN technology, it’s not easy to understand all the protocols needed before your company’s data can be effectively delivered to its actual place of destination. There is this so-called point to point protocol (PPP) that provides authentication, encryption, compression and transmission. PPP can be used in networking using different types of the physical networks. Among them is the use of serial cable, truck line, cellular phone, phone line and other specialized radio links, fiber optic technology like SONET. Not only that. PPP is also very important factor in accessing the internet. Internet service providers (ISPs) have also used this technology for the dial-up access of customers to the internet, since IP packets is impossible to transmit over a modem line on their own, without observing the so-called data link protocols. Indeed, the point to point WAN is quite difficult to understand in a single setting but can be learned as days go by.  

Point to Point WAN Protocol is a standard network industry protocol. PPP uses a field Network Control Protocol of the Data Link layer header to the network protocol that is used to record it. PPP stands authentication and multilink connections and can run over asynchronous and synchronous connections.
High-Level Data Link Control Protocol is a bit-oriented protocol that satisfies the requirements set by ISO. HDLC is the Data Link layer of the OSImodel. HDLC encapsulation method defines a serial data connection. There are frame characters and checksums used. HDLC is a point-to-point wan used on leased line. Authentication is not possible. In byte-oriented protocols that control information is encrypted as these are all bytes. Bit-oriented protocols use only a few bits of the audit information to store. SDLC, LLC, HDLC, TCP, IP, etc. are all bit-oriented protocols.

Aside from the point to point WAN, the HDLC is the default encapsulation (encapsulation) on Cisco routers synchronous serial connections. Cisco HDLC is always proprietary (Manufacturer specific) and it will never work with the implementation of an HDLC other producer. Each vendor defines the proprietary portion of HDSL in his own way. This field supports multi-protocol environments that only support one protocol environment. Each manufacturer has a proprietary (vendor-specific) method HDL. The reason is that each producer has an own way to communicate. Point to Point wan Protocol (PPP) is a protocol at the Data Link layer that can manage media with asynchronous serial (dial-up) or synchronous serial media (ISDN). PPP uses LCP (Link Control Protocol) connections in order to establish and maintain it. The very purpose of PPP is to transport packets from layer 3 on a point-to-point wan connection at the Data Link layer. PPP contains four basic components: EIA/TIA-232-C, an international standard for serial communications on the physical layer; HDLC, a method for encapsulating datagrams on serial connections; LCP, a method for building, configuring, maintaining and terminating a point-to-point wan connection; WAN protocols - A method for building and configuring various protocols on the Network layer. PPP is designed to ensure that more protocols are on the Network layer and can be simultaneously used without problems. Examples are IPCP (Internet Protocol Control Protocol) and IPXCP (Internetwork Packet Exchange Control Protocol). PPP protocols apply only to the physical and data link layers. NCP is used to communicate with more protocols at the network layer. The point to point WAN protocols are encapsulated during transport over a PPP connection.

Point-to-point WAN is used when a virtual circuit in a router is connected to another. Each point-to-point subinterface requires its own subnet. Multipoint is used when the router is the center of a star-shaped system virtual circuit. The subinterface uses a subnet for all serial interfaces of the router connected to the frame switch. The DLCI number is not absolutely necessary but it simplifies the management of the interfaces. When no LMI type is defined it means that a standard Cisco is in play or auto detect is used in Cisco IOS version 11.2 or later.

Consider the point to point WAN technology now in your business and see for yourself amazing results!

Wednesday, October 5, 2011

Computer Networks - Describing Point to Point WAN

point to point wan

Not very long ago, school assignments were submitted on paper. Since the birth of the Internet,
everything changed. It quickly became widely used from homes to offices, but what’s even
better is that you could even have your job on the internet. With just an Internet connection, you
and your family could offer a world of possibilities on the World Wide Web. Today, many homes
have more than one computer making everyone happy through home networks. But what is the
internet and how do the World Wide Web and home networks work?


Computer Networks - Point to Point WAN



If you take a look at a map, it seems nothing but a chaotic collection of lines. But if you look
closer, it appears that the lines connect to each other, connecting towns and cities. From that,
we can look at a country as something that is an inter-urban network of highways. When it is our
first time to visit a city, we usually get a map so that we know our way around the city streets. It
is the local network with the inter-urban network connected with it.

Computer networks are based on the same idea. A business, university, school, etc. are
all a local network of computers. Such a network is a LAN, which is an abbreviation of the
English "Local Area Network" (local network). LANs are connected to larger networks called
the "Wide Area Networks" or WANs.

WANs are in turn connected to other WANs and directly or indirectly to a network of computers
around and eventually the world. It is the Internet. As the network of streets and highways are
designed to carry vehicles, such a computer network is designed for data transport. Therefore,
the internet is often the "information highway" (Information Highway).

The Internet Network

The internet has a unique structure. The reason for this design is similar to a network of roads
along which information from one computer to another move. Any computer connected to the
internet, is a "web hosting" (web host) and is called a node on the network. The information from
one node to the other is a way through several other nodes running. As one of the nodes in a
specified path breaks down, the unique structure of the Internet leading to a different path is
chosen.

Different computers are distinguished by different information that it provides and is targeted
to achieve an Internet Protocol address, usually an IP number called to every internet-linked
computer-assigned. This is a group of four numbers, each from 0 to 255 range and that points
is separated. Computers with good storage numbers are easily remembered by most people
remember. Hence, a system for computer acronyms is developed publicly accessible for home
computers which information is often downloaded. These acronyms are based on Internet host
names and the names of networks, which are referred as domains, where the computers are
connected. The acronyms are domain addresses listed. Large institutions such as universities
and Internet Service Providers have computers that have domain addresses converted to IP numbers. Such a computer is a domain server named as a "Domain Name Server" or more commonly, a DNS.

The path through the Internet through which information from one computer to another is sent is
a router. Routers are usually used for LANs to a WAN or other LAN or WANs with another WAN
to connect with. Cables of optical fibers are usually applied to the routers of different WANs or
LANs, linking computers via point to point WAN router to each other. Internet hosts are the routers connected to their LANs using wires or radio signals (a wireless connection). Copper wires (telephone wire)
are usually used in some older networks.

The routers used for connecting large LANs and WANs are used with software that is task-
oriented and specialized software for routing. However, routers may also be smaller hardware
devices especially designed for routing. For smaller networks, a computer mainly uses a router,
for other tasks it uses the appropriate software installed. A router can also serve as a server. A
large organization like a university may have several LANS connected by a router to a WAN.

In order to expedite the process of a LAN computer to find an IP number of a LAN-based
computer to identify whom it belongs to, it used English "subnetting", which is the LAN as a
subnetwork. A number, called the "subnet mask" is used by the router to identify which LAN the
data belongs to. If a router does not have an internet host or its own LAN or WAN, it can still be
traced through the address of another router. The IP numbers are arranged so that a router can
quickly determine if a computer is on its own network or not.

Connecting a computer to the Internet

In an organization, like a large corporation or university, with an existing LAN and a WAN link,
usually have two ways of leased lines by ether cable or wireless. A router that is of a wireless
connections management is also a wireless network base station. Wireless connections are
slower and the trend is for mobile computers such as laptops. Most new laptops have wireless
capability and are available through wireless networks when locating its wireless network
function. If the wireless network is protected by a password, it is not an open network and the
connection does not connect automatically.