Archive for the ‘resources’ Category

WAN Adapter

Monday, August 3rd, 2009

The information superhighway is characterized by major changes in technology and the application of those technological advances in commerce, government, and every day life. Linking up with the entire world from one location, sharing data, and conducting businesses has been made easy, reliable, and effective through WANs (Wide Area Networks). The Internet being the largest WAN is the hub of all activity, effectuating data transfer using common telecommunication carrier devices. The common links used for connectivity are fiber optic lines, wireless, telephone, microwave, and satellite links.

Various components, both internal and external, constitute the WAN infrastructure. Basically, WANs are set up with connections (T1, T3, DSL, ISDN, Cable modem links, etc.), routers, and security strategies (VPN solution, Firewalls). Other devices that further enhance WAN connections include WAN Adapters. The WAN Adapter is a device, which enables connectivity and workability options between systems. Often termed “Controller,” this device executes intense processing, its basic functionality being converting one set of signals to another. There are different types of adapters such as display adapter (video card), network adapter (NIC), which is the WAN Adapter, and SCSI host adapter.

Modern technology has initiated better connectivity options to the Internet with the aid of devices that operate with unique features for the required functions. A WAN Adapter is one that interfaces a computer system to a network. Available in various forms, the network adapters allow one system to link and work with another system. The connection between systems is crucial for communication and data sharing. Hence a WAN Adapter is most suited to the purpose. It operates on the physical layer and data link layer (layers 1 and 2 of the OSI model), and enables access to a networking medium. The end users can connect one to another either through cables or by wireless means.

A robust WAN is crucial for companies to meet their Business Continuity standards. Large enterprises cannot afford downtime as it will hinder continuity in work flow, and impact bottom line profitability. Hence constant ‘uptime’ is required to avert low throughput caused by transmission delays. A WAN Adapter has the capability to sustain high throughput levels. Its performance is increased by performing the load balancing function and regulating network traffic in the appropriate directions. Two or more network adapters (ports), which aggregate and function as a single adapter, are called virtual network adapters. This provides fault tolerance and load balances across data lines.

A WAN Adapter depends on the type of connection used and the data communications network. It is responsible for the transmitting and receiving data at the physical level. The process for configuring a WAN Adapter varies depending on the connection (ISDN, DSL, etc.). Although just a component in the network, it still has its own unique functionality that is one of providing access between systems and to the Wide Area Network.

In the global marketplace, which is crowded by technology solutions, the pioneer of router clustering technology akin to WAN adapters, FatPipe Networks is in the forefront with its WAN optimization solutions. FatPipe developed a flexible solution for WAN redundancy and dynamic load balancing of inbound and outbound data traffic. FatPipe technology takes disparate connections such as DSL, T1, ISDN, T3, Cable Modem, Wireless, ATM etc and dynamically load balances across any combination of these lines. FatPipe Technology is a superior WAN Adapter that gives users more functionality that enhances WAN performance. Large enterprises that want to keep pace with their growing business continuity requirements can use technology such as those provided by FatPipe networks - for the highest levels of WAN optimization, reliability, security, and bandwidth management.

Frame Relay WAN

Monday, August 3rd, 2009

A Frame Relay WAN is a high performance WAN protocol that is a proficient data transmission technique to transmit digital information. It is extensively used for Local Area Network (LAN) inter-networking in which, process data is transmitted between LANs and end point of WANs. Frame relay WAN is based on packet switching technology and operates on the physical and data link layers (Layers 1 and 2) of the OSI model. However, they are mostly implemented at Layer 2. Frame Relay WAN utilizes packet switching techniques such as variable-length packets and statistical multiplexing. It allows end user systems to share the network and also the available bandwidth.

Frame Relay WAN protocol facilitates information transfer from one user device to another over multiple switches and routers. It renders a platform for network providers, wherein voice and data can be encapsulated and used between LANs across a WAN. This is a cost-efficient method and is widely used. The end users are provided a private or leased line to a frame relay node. Frame relay WAN consists of a system similar to a “relay race,” which forwards messages in frames. The data packets (frames) are passed through intermediate node points from one or several starting points to one of several end points.

Frame Relay WAN is used to manage transmissions across paths that change often, but transparently to the users. With WAN connectivity being a prime determinant for business continuity in Enterprises as well as Small and Medium Businesses (SMBs), the need for seamless network integration becomes a requisite. In business applications, when frame relay WAN is used for connectivity, a customer would buy a frame relay service from service providers.

A private network is created through the carrier’s network by a frame relay, which uses Permanent Virtual Circuits (PVC). The frames of the frame relay are transported with the aid of virtual circuits, which render bidirectional communication paths between terminal devices, which are distinguished through a Data Link Connection Identifier (DLCI). It is possible to multiplex several virtual circuits into a single circuit to enable transmission over the network. This functionality reduces the technical complexities of equipment and the network when linking multi terminal devices. In a frame relay WAN, there are a number of intermediate switches, and a virtual circuit has the capability to pass through any number of those switches.

PVC connections are established between sites by using the carrier’s network. The carrier creates a configuration entry on the frame relay switches. Besides, a frame relay port that matches the circuit size, and a PVC to connect the frame relay port to other ports on the network are the basic requirements to set up a Frame relay WAN. Connectivity to the frame relay network can be established by attaching the user’s Data Terminal Equipment (DTE) to the service provider’s Data Circuit-terminating Equipment (DCE). Thereby the user is connected to the service provider’s Frame Relay Cloud, after which the PVCs can be configured to enable communication between the sites. A Data Link Connection Identifier (DLCI) is used to identify the PVC’s endpoints on the user’s Frame relay WAN. After establishing the connection, the Line Management Interface (LMI) enables the user to monitor the status of the line.

Frame Relay is a Wide Area Network protocol that holds many advantages owing to its popularity as a cost-effective technology. It is advantageous over point-to-point leased lines by matching the performance of leased lines over long distances at a considerably less cost. While the cost of leased lines increases depending on the distance, Frame relay WAN is economical as the user or customer is required to make only a single point-to-point connection to the closest frame switch of the service provider. The data is carried forward from there over the shared network of the provider. Other benefits of a frame relay WAN include the capacity to interlink to the frame relay cloud with a single circuit and access all the other sites. An important advantage rendered by the frame relay WAN is that, disaster recovery is considerably improved due to the fact that only a single circuit has to be added to the cloud and PVC’s in order to gain access to all remote sites. Finally, using PVC’s will allow for efficient management of the WANs.

Technology has improved tremendously over the last few decades and older technology has always undergone transformation, updating, and even outdating. In the case of frame relay WAN, there is a minor decline in usage level due to the superior multi faceted connectivity options of various other technology. However, rural areas that are yet to see technology such as DSL and cable modem, continue to use this low cost WAN protocol with continuous connectivity at 64 kb/s. Besides, its low cost makes it a popular technology and accounts for its usability. Frame relay WAN is often seen as an alternative to dedicated lines as well as X.25 networks for interlinking of LANs through switches and routers. This is due to its bandwidth efficiency.

Today’s business world has the need for secure WAN connectivity, which offers continuous ‘uptime’ regardless of network outages and other technical snags. With business continuity being an important part of any business, highly reliable and secure WAN connections are imperative for all types of businesses. Frame Relay WAN performance can be enhanced by having multiple WAN connections. This will remove the dependence on a single connection for WAN uptime. However, technology that aggregates and load balances these connections is required to maximize effectiveness.

WAN Components

Monday, August 3rd, 2009

Frame Relay WAN

A Frame Relay WAN is a high performance WAN protocol that is a proficient data transmission technique to transmit digital information. It is extensively used for Local Area Network (LAN) inter-networking in which, process data is transmitted between LANs and end point of WANs. Frame relay WAN is based on packet switching technology and operates on the physical and data link layers (Layers 1 and 2) of the OSI model. However, they are mostly implemented at Layer 2. Frame Relay WAN utilizes packet switching techniques such as variable-length packets and statistical multiplexing. It allows end user systems to share the network and also the available bandwidth. Read the rest of this article »

WAN Adapter

The information superhighway is characterized by major changes in technology and the application of those technological advances in commerce, government, and every day life. Linking up with the entire world from one location, sharing data, and conducting businesses has been made easy, reliable, and effective through WANs (Wide Area Networks). The Internet being the largest WAN is the hub of all activity, effectuating data transfer using common telecommunication carrier devices. The common links used for connectivity are fiber optic lines, wireless, telephone, microwave, and satellite links. Read the rest of this article »

VPN Router

Monday, August 3rd, 2009

The information business era is characterized by the need for a global network of networks — the Internet — for e-commerce, everyday businesses, education, and many other purposes. In a competitive marketplace, business organizations require secure Wide Area Network (WAN) connectivity to run their mission critical applications. The emphasis is on an Internet connection that has constant uptime and integrity.

The evolution of advanced technology and the influx of technological products, (routers, switches, cables, modems, to name a few), have all emerged due to the demand for enhanced connectivity options to the Internet combined with speed and security, primarily. In a WAN set up, routers are the devices located at the connecting point of two or more networks (gateways), and enable the forwarding of packets of data on the network. File sharing between multiple computer systems is made possible with the assistance of routers. A WAN connection along with a router VPN (Virtual Private Network) allows Internet access and connectivity within a network from any place in a secure way. Since the critical applications that run across the WANs are crucial for businesses, security is a prime issue. Security WAN is considered as the key towards conducting of businesses over the public communication infrastructure.

A VPN Router (or Router VPN) is a device that provides security and connectivity in a network at various levels. The systems that are configured with an able VPN Router can be deployed for various utilities including dedicated encrypted VPN gateways, firewall protection, and as an IP access for router connections. Security Routers operate by creating a private path for information to be transferred securely. Data packets that are carried forward by routers are encrypted at the sending end and decrypted at the receiving end using VPN technology. This prevents unauthorized users from accessing secure data over the network. A security WAN comes into existence when one establishes a secure and private communication tunnel across a publicly shared network, and interlinking devices to access that information.

VPN technologies improve the performance of WAN applications through securing the network traffic. As a virtual private network, VPNs maintain privacy through its security procedures and tunneling protocols. VPNs support two types of tunneling - A voluntary VPN tunneling where the VPN connection setup is managed by the VPN client, and compulsory VPN tunneling where the VPN connection setup is managed by the network provider. Providing a secure network is the core of VPN technology, which follows certain protocols to accomplish the same. Key secure VPN protocols include IP Security (IP Sec), Secure Sockets Layer/Transport Layer Security (SSL/TS), Open VPN, Layer 2 Tunneling Protocol version 3 (L2TPv3), VPN Quarantine, and Multi Path Security (MPSec). Among these, IPSec and MPSec technologies ensure high levels of security and are widely used.

VPN Router technology is a fine solution for gaining secure remote access to networks over the Internet with the use of cutting edge methods such as encryption and authentication. Security routers with complete IPSec Virtual Private Network (VPN) capability provide a platform wherein there is total data privacy for accessing and exchanging crucial information. Most enterprises that have an indispensable need for a secure WAN in order to ensure business continuity employ router VPNs and other such technological appliances to secure their information transactions and protect consumer details, thereby giving them privacy over the network while availing online services. The VPN Router is simple to configure and use. Also, it is compatible with most of the major operating systems and standards.

Although the VPN Router technology offers a secure mode of communication across the WAN, there are still certain security issues that exist. In order to address these issues, the need for superior refined technology becomes a necessity. FatPipe Networks, the innovator and multiple patents holder of router clustering technology, has provided businesses with a comprehensive suite of WAN optimization solutions. FatPipe’s patented MultiPath Virtual Private Network (MPVPN) technology secures VPN data transmissions, dynamically load balancing IPSec traffic over multiple lines and ISPs without the need for BGP programming. The MPSec feature provides an additional level of security of data transmission using its MPSec technology. MPSec will break down data to the packet level and randomly send the packets over the multiple lines for a very high level of security. Hacking and snooping is virtually impossible as the encrypted traffic is sent in pieces and out of order over the VPN, where it is reassembled on the other side by the receiving MPVPN with practically no latency. Businesses thrive when they have strong WAN infrastructures and technologies such as those of FatPipe help them achieve their business goals.

Routing Optimization

Monday, August 3rd, 2009

Information Technology, in current times, is improving at an accelerating rate. Technology has enabled an exponential growth in almost all areas of business, well evidenced by the mushrooming of Enterprises, Small and Medium Businesses (SMBs). Innovative applications, powered by advanced technology, have made organizations and individuals more organized, adept, and productive. With businesses largely depending on their Wide Area Networks (WANs) for commerce, information sharing, online services, etc., the necessity for optimizing applications to render maximum performance is imperative.

Routing Optimization has emerged as a significant concept in traffic engineering. It is a dynamic tool that equips network administrators with the ability to route traffic over the data networks efficiently. The process of selecting a network path to direct network traffic is called routing. The objective of optimal routing is distributing the traffic flow evenly over available network resources to avert network congestion and degradation of Quality of Service (QoS). Data networks, both wired and wireless, require optimal routing of network traffic based on different criteria. In wired networks, Routing Optimization is determined by the network connection capacities that are usually given and fixed. Whereas, wireless networks have the flexibility of reallocating communication resources (frequency, time slots, for instance) since the link capacities are not always fixed.

Certain key factors involved in Routing Optimization are Interpreting, phasing, and evaluating requirements. These help in analyzing the requisites, segregating and then enabling optimal routing. Optimal routing on packet switching networks involves forwarding, i.e., the transport of data packets from the source to the intended destination through intermediate nodes such as routers, firewalls, bridges, gateways, and switches. Multiple network cards on computer systems also enable forwarding of data packets along the network and optimize routing performance. In order to perform Routing Optimization, there are many standards used, which includes Routing tables, algorithms, and protocols.

Routing algorithms and techniques that are employed to render optimal routing include multipath routing, policy-based routing, static routing, and QoS in routing, among others. The routing optimization performed based on traditional routing protocols involves forwarding packets of data by hops, on a destination-based method. Research has proven over time, that using multipath routing and the dual-metric concept connections in routing optimization can produce superior results compared to default single-metric routing. Policy-based routing is a popular technique that is employed by large enterprises to monitor and route data traffic over the network. The routing decisions are made based on a set of policies defined by the network administrator. Routing optimization is effectuated when the IP traffic is routed based on specific policies and protocols. For instance, the network administrator has the privilege to specify the type of data that should go over a particular WAN connection. This enables administrators to prioritize, allocate and optimize data transmission over the network. Multipath routing leverages multiple alternative paths through networks and render options such as fault tolerance, maximum bandwidth utilization, and secure connectivity during data transfer.

Technology, which enables optimization of routing performance and consequently better WAN performance are in great demand. Businesses are always looking at enhancing performance and achieving superior end results, for that is a vital key to business continuity. There are a diversified lot of technology solutions providers who render optimization products. A company that stands out in the market place for its suite of WAN optimization solutions is FatPipe Networks. It has created the technology to provide innovative, cost-effective solutions for businesses that require ‘always-up’ availability of their WANs for business continuity, without compromising the integrity or security of data transmissions.

FatPipe is the innovator of router clustering technology and multiple patents holder of technology that provides the highest levels of WAN optimization, reliability, security, and bandwidth management. FatPipe Technology allows multiple and varied connections to ISPs. It takes disparate connections such as DSL, T1, ISDN, T3, Cable Modem, Wireless, ATM etc and dynamically load balances across the lines. It also fails over the network traffic by sensing the active link, when any of the connections fail.

FatPipe’s patented WARP technology solution is for those companies that require high levels of redundancy and availability for their Wide Area Networks. It enables high fault tolerance for WAN infrastructures, and dynamically load balances inbound and outbound data traffic. Advanced product features of WARP include SmartDNS, Policy Routing, Reverse mapping, and Fastest Route, a new load balancing method, which aid in Routing Optimization. WARP’s routing options allow administrators to have greater control over IP traffic delivery. It also enables them to define routing criteria based on application and provider. Routing optimization can thus be effectively carried on with businesses having better control of bi-directional IP traffic.

Multiple WAN Port Router

Monday, August 3rd, 2009

Our network-reliant world is endowed with a plethora of advanced technological gadgets and applications. The Wide Area Network (WAN) offers plenty of options to gratify the increasingly complex networking needs of a broad business customer base. The advances in technology continue to offer more WAN options. WAN communications efficiency is influenced by two major factors: bandwidth and latency. In order to ensure their effectiveness, various technological choices are analyzed and the best is adopted.

A WAN Port is used to establish a connection to the Internet. A WAN port is the socket present in a networking device, which is wired to the Internet or any such external network. In many cases, large enterprise business applications employ multiple WAN ports that are connected to a T1 line or other WAN connectivity options such as DS3. These WAN ports may make use of a V.35, RS-232 or RS-530 connections. The reason behind utilizing multiple WAN ports or multiple WAN port routers in these large companies is that the core of business operations (Business Continuity) is crucial and necessitates continuous WAN uptime and integrity. In the Small and Medium Businesses (SMBs), where inter-networking is used for internal communications, an Ethernet port on the router is connected to a similar port on a cable or DSL modem.

As companies of all sizes became increasingly reliant on WANs to conduct business operations, the need arose for more than one WAN connection in order to avoid network outages. Dual WAN connections and subsequently multiple WAN connections brought about a radical change in the WAN application business scenario. Multiple WAN connections can yield continuous connectivity and ensure speed if they are connected by a router-clustering device, or something similar. They enabled ‘always on’ connectivity, which guaranteed business continuity in enterprises and other organizations.

Multiple WAN Ports and connections improve WAN performance across applications and provide redundancy in connectivity to the Internet. Wide Area Network throughput is also considerably increased with Router multiple WAN IP, which aggregates network traffic.

In the networking structure, the role of routers, switches, ports, and other hardware devices is indispensable. While a router is committed to the task of routing messages between an internal network and the Internet, a dual port WAN Router (or Router dual port WAN) combines two WAN connections and one LAN connection, routing and forwarding data to both internal and external networks. Generally, a WAN Router forwards data packets to an outside network like the Internet. A Router dual port WAN is used by companies to connect two T1 Internet data lines concurrently. It also offers functionality such as basic load balancing, line failover, and several custom routing rules. However, a drawback is that router dual port WAN require BGP programming, which is complex. A dual port WAN Router also is a single point of failure; should the router fail, all connectivity will be shut down. These encumbrances can be overcome by using superior technology developed by innovators in WAN optimization technology such as FatPipe Networks.

Using Router multiple WAN IP yields many advantages over a conventional single WAN connection, as well as a dual port WAN Router. In addition, it is possible to have enhanced Quality of Service (QoS) settings, which will enable granular bandwidth allocation control over services that should get priority when the network traffic is high.

Another solution for businesses is to utilize a Multi WAN port solution. A Multi WAN port device is one that is connected to multiple WAN connections from the same or separate ISPs. Employing a multiple WAN port router or a FatPipe router clustering device is advantageous since it can considerably clear network traffic and route specific data through disparate WAN connections. Basic features of a FatPipe router clustering device include dynamic load balancing of inbound and outbound traffic, QoS, and Virtual Private Network (VPN)/IPSec capabilities. The Demilitarized zone (DMZ), virus filter on content, Web content filter, and Intrusion detection, and all other web applications are ably supported by multi WAN port routers and router clustering devices.

Load balancing is a well-known feature of multiple WAN port routers and other multiple WAN port devices, where network traffic can be diligently managed. Network congestion is avoided as a multi WAN port router effectively routes network traffic to the external network. This brings about maximum bandwidth utilization and also effectuates outbound traffic aggregation, which is crucial for superior connectivity.

One of the few leading-edge solutions providers, FatPipe Networks, provides a comprehensive suite of WAN optimization solutions via its multi Port Router design of its router clustering devices. FatPipe offers a broad range of products that can equip businesses with high levels of WAN optimization, reliability, security, and bandwidth management. While a multiple WAN port Router can connect multiple WANs, FatPipe technology enables varied connections to ISPs. FatPipe devices can take disparate connections and perform dynamic load balancing and failover functions. FatPipe technology can intelligently sense the active link, when a line is down due to WAN component, line or service failure, and then route the network traffic in that direction. FatPipe devices do not use BGP programming. They ensure redundancy, reliability, and speed, which are the crucial components for companies to meet their business continuity standards.

Dual WAN Router Firewall

Monday, August 3rd, 2009

As business use of the Internet keeps increasing, there is growing demand for optimized performance of Wide Area Networks (WANs). Many technological concepts have emerged in the recent past, which improve WAN infrastructure and devices that carry forward the task of enhancing connectivity. One such device is the Dual WAN Router Firewall.

The communication barriers found across WANs cause restrictions on application performance. Three major issues that give rise to these performance constraints: are inadequate WAN bandwidth, latency, and limited WAN resources. These issues should be addressed in order to accelerate WAN performance and ensure business continuity. Employing technology solutions and devices such as routers, switches, and enhanced features like multiple WAN connections, failover, Dual-WAN Router Firewall, etc. aid in strengthening WANs.

A Dual WAN Router Firewall is a combination of two wide area network connections with a firewall functionality. The router functionality improves the utility of this device. To elucidate the basic terms, a WAN Router is a network device, which forwards data packets to an external network. While there are routers that function within the internal network, WAN routers direct Internet traffic externally. In this context, a Dual WAN Router is defined as one that aggregates two wide area network connections and one LAN connection and forwards and routes information to internal as well as external networks. The firewall functionality is an added feature to this combination and hence a 2 WAN Router Firewall is essentially an indispensable application in businesses.

Almost all businesses deploy WANs and expect high performance in order to meet their everyday business goals. Most of the Small and Medium Enterprises (SMEs) invariably make use of the 2 WAN Router Firewall for reliable, secure, and redundant connectivity. This technology allows connectivity between two different ISPs and the same firewall resulting in a secure LAN and failover capabilities. With businesses relying on the robustness of WANs for end-to-end network performance and high availability, there is a need for superior technology devices that can offer continuous ‘uptime’ amidst failures. FatPipe Networks is a technology solutions provider specializing in WAN optimization solutions. Over the years, these products have morphed as effective alternatives to the more cumbersome 2 WAN Router Firewall or other such technology. Although a 2 WAN Router Firewall provides redundant, secure connectivity with failover and load balancing options, large businesses demand high-end performance solutions for their core of operations and business continuity.

A Dual WAN Router Firewall or the Dual WAN Firewall Router helps to manage IP traffic and routes data packets to the intended destination based on priority. In the event of any disruptions in one dataline, the system fails over to the next active link. Since there are two WAN connections, it is possible to have continuous uptime. A 2 WAN Firewall Router can be used to the fullest, provided supporting technology devices are used. Large enterprises use multiple wide area network connections over a Dual WAN Router Firewall as the former steers clear of network congestion and is redundant. Emerging as the one-stop solution provider for WAN optimization, FatPipe Networks stays ahead with superior product offerings that ensure business continuity.

FatPipe Networks revolutionized the market about a decade back, with its Enterprise class solutions. FatPipe devices can take multiple wide area network connections and dynamically load balance inbound and outbound IP traffic. Its patented MPSec technology enables this expert technology and also provides ease of handling. Load balancing and automatic failover capabilities strengthen the WAN infrastructure and increase the efficiency of WAN, ultimately accelerating the business operations of companies with high availability.

Routing Technology and Attributes

Monday, August 3rd, 2009

Dual WAN Router Firewall

As business use of the Internet keeps increasing, there is growing demand for optimized performance of Wide Area Networks (WANs). Many technological concepts have emerged in the recent past, which improve WAN infrastructure and devices that carry forward the task of enhancing connectivity. One such device is the Dual WAN Router Firewall. Read the rest of this article »

Multiple WAN Port Router

Our network-reliant world is endowed with a plethora of advanced technological gadgets and applications. The Wide Area Network (WAN) offers plenty of options to gratify the increasingly complex networking needs of a broad business customer base. The advances in technology continue to offer more WAN options. WAN communications efficiency is influenced by two major factors: bandwidth and latency. In order to ensure their effectiveness, various technological choices are analyzed and the best is adopted. Read the rest of this article »

VPN Router

The information business era is characterized by the need for a global network of networks — the Internet — for e-commerce, everyday businesses, education, and many other purposes. In a competitive marketplace, business organizations require secure Wide Area Network (WAN) connectivity to run their mission critical applications. The emphasis is on an Internet connection that has constant uptime and integrity. Read the rest of this article »

Routing Optimization

Information Technology, in current times, is improving at an accelerating rate. Technology has enabled an exponential growth in almost all areas of business, well evidenced by the mushrooming of Enterprises, Small and Medium Businesses (SMBs). Innovative applications, powered by advanced technology, have made organizations and individuals more organized, adept, and productive. With businesses largely depending on their Wide Area Networks (WANs) for commerce, information sharing, online services, etc., the necessity for optimizing applications to render maximum performance is imperative. Read the rest of this article »

WAN Routers

Monday, August 3rd, 2009

The advances in information technology have opened avenues for a new line of Internet-dependent businesses. Online service is a crucial component for most of the businesses these days. The Wide Area Network (WAN) has spread its strong roots in the technological domain and made its presence felt in all areas of living. Along with it, many devices that assist in the overall network function increase the efficiency of the WAN infrastructure. Routers, Firewalls, switches, hubs, etc. are few of the components that are used in WAN networks.

A Router is a device that routes and forwards packets of data along networks. Connected to two networks at the least such as two LANs/WANs or LAN and its Internet Service Provider (ISP). It operates at the network layer, the layer 3 of the OSI reference model. Routers make decisions with the aid of IP addresses. A WAN router is a network device that forwards data packets to an outside network like the Internet. WAN routers, like many other routers, direct the network traffic to an external network. However, routers or core routers route information within an internal network such as an enterprise. A router WAN stands separate with its functionality: of selecting the most appropriate data and transmitting to an external network. It also routes and forwards information between internal networks and the Internet.

WAN routers are placed at network connection points, which are called gateways. A typical functionality of a Router WAN would involve the following steps: determine the best suited path to forward data packets using headers and forwarding tables, configuring the most beneficial route between two hosts with the help of protocols for communication purposes. In order to interconnect networks, a linkage is necessary. A WAN router provides that linkage to connect to networks and then efficiently route and forward data packets to the network.

Businesses are increasingly reliant on the Wide Area Network for reliability and speed in connectivity. The broad spectrum of business performance and continuity in operations depends on stable WAN and superior technology solutions. Developments in technology services including VoIP, remote access for applications, merging of wired and wireless technology, have all brought for the necessity of diversified functions. WAN routers are charged with a heavier load of routing tasks among others. As with multitasking where many tasks are performed in parallel mode, the concept of Multi WAN Routers also gains due prominence. A multiple WAN router is the configuration of routers for groups of networks to effectively route network traffic to the external network. This enables maximum bandwidth utilization and also effectuates outbound traffic aggregation, which is crucial for superior connectivity. Multi WAN routers connected to multiple WANs, i.e. separate ISPs, or one ISP with separate connections such as 2 T1 lines. WAN performance depends on optimal router performance.

Multi WAN Routers ensure reliable WAN connectivity with its multiple points of connection for routing data packets along the network to the Internet. Load balancing is an important characteristic of a multiple WAN router or WAN routers in general. This enables failover and avoids disruption in connectivity. A multiple WAN router is preferred as it can combine WAN connections and LAN connections and forward data to both internal and external networks.

FatPipe Networks is a leading edge innovator of router clustering technology. FatPipe technology allows multiple and varied connections to ISPs. It facilitates companies with automatic failover capabilities and dynamic load balancing. Large enterprises invariably opt for superior technology such as those offered by FatPipe to ensure a robust WAN and consequently meeting their business continuity goals.

FatPipe Networks provides a comprehensive suite of WAN optimization solutions. It offers a broad range of products that can equip businesses with high levels of WAN optimization, reliability, security, and bandwidth management. While a multiple WAN Router can connect multiple WANs, FatPipe technology enables varied connections to ISPs. FatPipe devices can take disparate connections and perform dynamic load balancing and failover functions. When a line is down due to WAN component, line or service failure, FatPipe technology intelligently senses the active link and routes the network traffic in that direction. FatPipe devices do not need BGP programming. They ensure redundancy, reliability, and speed, which is essential for companies to meet their business continuity standards.

Routing Protocol

Monday, August 3rd, 2009

The information superhighway is characterized by an influx of technology-based products and applications, which enormously boost the performance of businesses in today’s competitive global marketplace. The Wide Area Network (WAN) or Internet as the prime mode of information sharing and business determiner is looked upon as the ‘new age medium’ that ensures business continuity and nurtures technological growth in all areas. Stable WANs are the backbone of communications and understanding and fortifying them against disruption is essential for business continuity considerations.

A Routing Protocol defines the communication process that a router adopts to determine the appropriate path along which information must be transmitted across the network. It allows routers to communicate with each other and enables them to choose the appropriate route between any two nodes present in a network. Generally, each router will have details only about its immediate neighbors. Routing protocols enable routers to share this information so that the routers can have distributed knowledge about the network in a broad way.

The routing protocol delineates the method by which a router in a network shares information with other routers and also reports the changes. In effect, it is the application of a routing algorithm in a software or hardware. Routing protocols employ metrics to determine that path that has to be used for transmission of data packets over a network. A few of the metrics are: the hop count, i.e. the number of network layer devices on that path, bandwidth, delay, load, Maximum Transmission Unit (MTU), and cost. The outcome of these metrics is stored in a routing table. Routing protocols are characterized by certain specific aspects. They prevent formation of routing loops and break the routing loops that are formed. Through analyzing the sequence of hops, they can ascertain the most preferred routes and other factors of preference.

A Routing Protocol can be distinguished under three main types, namely, link-state routing protocols, path vector protocols and distance vector routing protocols. However, there may be variants in certain types of protocols. The link-state routing protocol is used for communication between computer systems in packet switched networks. It is one of the two major classes of routing protocols employed in packet switched networks, the other being distance vector routing protocol. As the name denotes, the link-state routing protocol helps to link information transfer in the network. Information regarding constructing the connectivity maps is the only information that is passed between the nodes. The link-state routing protocol necessitates a router to inform all the nodes in network if there are any topological changes.

A path vector protocol maintains the information updating pathway that is distributed over the network. Repeated updates that traverse through the network are efficiently found and discarded. Border Gateway Protocol (BGP) is one of the path vector routing protocols. Mostly, Routers that are specifically used for connecting ISPs and large companies utilize the BGP, which is the core routing protocol of the Internet for exchanging routing information. However, its intricate structure and full mesh configuration brings down the performance of routers. At this juncture, it is worth mentioning that an innovative technology solution provider, FatPipe Networks introduced its patented router clustering technology, which is a leading substitute for BGP load balancing. FatPipe devices do not need BGP programming. This unique feature among a multitude of other technology offerings makes FatPipe, a preferred solution provider in the marketplace.

The third major type of routing protocol is the distance vector protocol. This routing protocol necessitates a router to inform only its neighbors about topological changes in a periodical manner, and in certain cases when changes are found in the network topology. Distance-vector routing protocols are advantageous due to the fact that their functionality has considerably less complexity of computation when compared to Link-state routing protocols.

In the larger business scenario, some routing protocols are designed for the internal use of organizations, while some are used between organizations. Routing information is exchanged within a single routing domain by Interior Gateway Protocols (IGPs). The given autonomous system can comprise multiple routing domains or coordination carried on among a set of routing domains. Examples of this type include Interior Gateway Routing Protocol (IGRP), Open Shortest Path First (OSPF), Routing Information Protocol (RIP), and Intermediate System to Intermediate System (IS-IS). OSPF is the present lead IGP. Exterior routing protocols (EGPs) are those protocols, which route information between separate independent systems. Common examples of EGPs include Border Gateway Protocol (BGP), and Constrained Shortest Path First (CSPF). BGP4 is currently the leading Exterior Gateway Protocol.

It is to be noted that routing protocols operate at Layer 3 of the OSI model, which also distributes information based on topology between routers. The Internet or Wide Area Network (WAN) uses many routing protocols, which are defined in Request for Comments (RFC) documents. As per the OSI routing framework, a routing protocol is a network layer management protocol, irrespective of the transport process. IS-IS runs over the data link layer, OSPF, IGRP, and EIGRP over IP, RIP over UDP, and BGP over TCP. The routing protocol enables a network to dynamically adjust to conditions without the necessity of predetermined or static routing decisions.

In a growing business environment it is of the essence to utilize appropriate technological gadgets to ensure business continuity, the core of every business. FatPipe Networks provides a comprehensive suite of WAN optimization solutions. Its broad range of products can equip businesses with high levels of WAN optimization, reliability, security, and bandwidth management. FatPipe technology enables varied connections to ISPs and it can take disparate connections and perform dynamic load balancing and failover functions. FatPipe devices do not need BGP programming. They ensure redundancy, reliability, and speed, which is essential for companies to meet their business continuity standards.

Bandwidth aggregation Business continuity Disaster recovery Firewall redundancy WAN load balancing WAN redundancy WAN Security Spam WAN technology VPN Technology VPN redundancy VPN fail-over WAN Routing