This requirement is so that the traffic can transit to its destination in either the on-premises network or the public internet. In simple terms, the idea is that a company will have a headquarters, which serves as the hub of the business while the spokes are a geographically distributed network of offices usually based on talent and . Main disadvantage of Hub-and-spoke Wide Area Network (WAN) network topology is that it may cause communication time lags. Connectivity The primary function of hub is to allow clients to connect to a network so that they can share and have conversations. endobj Topics: It was part of a US attempt to get the countries to strengthen military ties between themselves.[6]. In more recent times, the hub and spoke model fell out of favor. But it still exists, particularly when it comes to international flights. In a point-to-point system, there's no company space for drivers to easily meet and switch. Inside a spoke, it's possible to deploy a basic workload or complex multitier workloads with traffic control between the tiers. A hub and spoke model also makes it possible for transport drivers to travel shorter distances and stay in a more centralized area. Related to the literature study, the POCC need reconfigure their information process into Hub and Spoke network. It is this hub that allows each of the spokes, sprawled out in all directions around the wheel, to meet at a centralized location at the center of the . Without the load, unload, reload, and transport from one area to another, team members can focus on their tasks. However, corporate policy might dictate you place the Application Gateway in the hub for centralized management and segregation of duty. No matter your industry, if you're looking to find a more efficient solution for your daily workflow, do some research to see if the hub and spoke model has already been applied to your industry. You will be redirected once the validation is complete. 8 0 obj The hub and spoke model survived because it suited the times. Airlines operate out of a centralized hub and use regional airports as the spokes from which they offer flights. The new system allows air travelers two key concepts in air travel. Qatar Airways, in particular, has capitalized on other airlines grounding their fleets and canceling flights. But those people didn't factor in COVID-19 and the subsequent aviation crisis. In the mid-1970s FedEx adopted the hub-and-spoke model for overnight package delivery. Besides advantages, Hub and Spoke network also several potential risks. Disadvantages of Hub : Collision Domain - The function of the collision domain and again transfer of packet does not affect actually it increases more chances of collision in between domains. endobj Hub And Spoke Vs Point To Point - How COVID Will Change Both Models, Americans Chief Revenue Officer Vasu Raja, rediscovering the virtues of the hub and spoke model, Alaska Airlines Unveils New Aircraft With San Francisco Giants Livery, Rex Reports 1st Half Loss As Regional Drags Back 737 Domestic Profits, Akasa Airs Next Aircraft Order To Be In Three Digits, One Year Of Sanctions: The Aeroflot Fleet In 2023, Lightning Damages Fuselage Of Dallas-Bound American Airlines Boeing 787-9, Why British Airways Flew An Airbus A319 To Abu Dhabi. The purpose of the hub-and-spoke system is to save airlines money and give passengers better routes to destinations. This material (including graphics) can freely be used for educational purposes such as classroom presentations in universities and colleges. The service requires full cookie support in order to view this website. Virtual conferences have several advantages over face-to-face conferences. This pattern allows for the efficient use of air craft on a balanced interconnected system designed to promote cross-feeder traffic throughout . A DNS service resolves naming the workload in the spokes to access resources on-premises and on the internet if. The hub and spoke model survived because it suited the times. In recent years, shipping companies have adopted the hub-and-spoke model to speed up deliveries and reduce costs. "Hubbing" involves "the arrangement of a transportation network as a hub-and-spoke model".[2]. That reduces the need to travel long distances between nodes near one another. Additional methods to improve e-commerce shipping, like implementing a hub and spoke distribution model, mean more direct access for distributors. In the airline industry as elsewhere, it's passenger demand that will dictate where airlines fly. Cost-saving measures like these keep drivers on the road and shipments arriving on time. The functionality of the hubs and spokes differ according to the industry. But fewer flight options means passengers have little choice. Under a hub and spoke model, Delta could fly nine routes to connect ten destinations. With the right technology, constant updates and rerouting eliminates extra drive time, keeps carriers on the road, and gets them back for more freight faster. As the demand and the network load grow, more point-to-point services become feasible. They claim that hubs allow them to offer more flights for passengers. Thus, hub-and-spoke networks are an intermediate stage in network development as the service preference remains direct connections. Everything either originates in the hub or is sent to the hub for distribution to consumers. Benefits. Linear, point-to-point business models work well in some industries and drag down efficiency in others. The hub-and-spoke model creates numerous benefits, including: Continuous movement for loads thanks to centralized handoffs. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. No one can deny the importance of information technology application. Centralizing location hubs makes dispatching more loads in 24 hours more manageable and more efficient. <> active hub, passive hub and intelligent hub. <> The Geography of Transport SystemsFIFTH EDITION In 1955, Delta Air Lines pioneered the hub-and-spoke system at its hub in Atlanta, Georgia,[3] in an effort to compete with Eastern Air Lines. 11.1 Introduction 11.1.1 Definitions Recall from the introductory chapter . It includes the related Active Directory Federation Services (AD FS). This increase is only justified by: In scenarios that require multiple hubs, all of the hubs should strive to offer the same set of services for operational ease. Trade, Logistics and Freight Distribution, Chapter 2 Transportation and Spatial Structure, 2.1 The Geography of Transportation Networks, Impact of Covid-19 on commuting patterns in the United States, Chapter 9.4 (Transportation, Disruptions and Resilience) updated, Chapter 9.3 (Transport safety and security) updated, Chapter 9.2 (Transport planning and governance) updated, Chapter 9.1 (The nature of transport policy) updated. Fortunately, additional planning and strategy can smooth out these issues in most cases. 227230. These tools also allow you to monitor and respond to your notifications, track brand mentions and view analytics in a central location. Organizations only need afford less staffs in Hub to dispatch goods or information into different Spoke, and there are also less staffs working in different Spokes to dealing with fewer or specific tasks. It also reduces the potential for misconfiguration and exposure. Most of the 12 major U.S. passenger airlines in operation as of 2001 use a hub-and-spoke network to route their plane traffic. Stay informed:Sign up for ourdaily aviation news digest. Airplanes are an airline's most valuable commodity, and every flight has certain set costs. Any other uses, such as conference presentations, commercial training progams, news web sites or consulting reports, are FORBIDDEN. <>stream With a hub and spoke distribution model, more shipments can go out at a much faster rate. Peering workload virtual networks from different subscriptions to a central hub can overcome these limits. An architect might want to deploy a multitier workload across several virtual networks. At the same time, timeliness as well as accuracy of transacting information from customers to management has greatly enhanced the opportunities for organisation to penetrate in the global retail market (Salunke, Weerawardena, & McColl-Kennedy, 2011). It is clear that information technology has become the competitive fact in world business. 2018 XIII International Scientific Conference - New Trends in Aviation Development (NTAD)158 Aug. 2018163 This eliminates repetitive, double-touch activity. The hub and spoke model refers to a distribution method in which a centralized "hub" exists. The hub and spoke model is dead, many industry pundits said. His research interests cover transportation and economics as they relate to logistics and global freight distribution. It hubbed them through Doha and effectively utilized the classic hub and spoke operating model. . This system is designed to obtain the best of both worlds: work from the office or from home. Smaller cloud estates might not benefit from the added structure and capabilities that this model offers. In the point-to-point model, transportation costs can actually be higher than in a hub and spoke model. An architecture with two levels of hubs introduces complex routing that removes the benefits of a simple hub-and-spoke relationship. However, with a little creativity, it can be applied to other types of businesses too. As a result of this, route scheduling is complicated for the network operator, since scarce resources must be used carefully to avoid starving the hub and careful traffic analysis and precise timing are required to keep the hub operating efficiently. Over the same period, passenger numbers at Delta Air Lines grew by nearly 20% to 204,000,000. transmission of structures to generate digital indicators distorted by the loss of the transmission. This resulted in many flights that were routinely half empty, which resulted in airlines losing money. He used the term twice in Tokyo and once at the San Francisco Peace Treaty of September 1951, which led to talks for bilateral peace treaty between the US and Japan. Higher active engagement, which leads to improved customer loyalty. You can see how having a central hub creates a more efficient process in this way, and you can do the same with other marketing or project management tasks. Please enable JavaScript on your browser and try again. However, as with any business model, the hub and spoke approach is not perfect. Most hub and spoke systems keep drivers within 200 to 300 miles of their main hub, which makes it much more reasonable for a driver to . You can implement multitier configurations by using subnets (one for every tier) in the same virtual network and by using network security groups to filter the flows. There will be detailed tasks related under the different functions (Hubs) with professional and trained staffs. Setting up this topology in the traditional on-premises data center can be expensive. Examples include dev/test, user acceptance testing, staging, and production. endobj Do a careful architecture and security review to ensure that bypassing the hub doesn't bypass important security or auditing points that are only in the hub. A Computer Science portal for geeks. "How Airlines Work" In a star network, all cables or nodes are connected to one central core which is the hub. Point to point travel. It uses the old-fashioned point-to-point system, hauling people short distances with few connecting flights. Hosts are liable for collision detection. Overall, this model improves many areas of shipping. Andrew is based in Sydney. Enables Faster Delivery. Hub-and-Spoke Integration Hub-and-spoke integration creates a centralized base that other applications can connect to, much like the hub and spokes of a wheel. The overall topology resembles a wheel, with a central hub connected to points along the edge of the wheel through multiple spokes. Reduced lengths-of-haul, which improve scheduling, reduce transit time and help drivers comply with hours-of-service regulations. {\displaystyle {\frac {n(n-1)}{2}}} This model addresses the following concerns: Saving on costs and efficient management: Centralize services that can be shared by multiple workloads, like network virtual appliances (NVAs) and DNS servers. Examples of common central services are: You can minimize redundancy, simplify management, and reduce overall cost by using the shared hub infrastructure to support multiple spokes. Simple Network Management Protocol (SNMP), Multipurpose Internet Mail Extension (MIME) Protocol, Computer Network | Quality of Service and Multimedia, Web Caching and Conditional GET Statements, Introduction of Firewall in Computer Network, Packet Filter Firewall and Application Level Gateway. The main advantages of the hubs are: Economies of scale on connections by offering a high frequency of services. Advantages The hub-and-spoke model has also been used in economic geography theory to classify a particular type of industrial district. Special Offer on Antivirus Software From HowStuffWorks and TotalAV Security. However, potential disadvantages may also occur, such as additional transshipment as fewer point-to-point services are offered, which for some connections may involve delays and potential congestion as the hub becomes the major point of transshipment. The Windows Server Active Directory infrastructure is required to authenticate third-party users who access untrusted networks before they access workloads in the spoke. PR News Online: 5 Benefits of Hub and Spoke Model, Aviation Knowledge: Hub and Spoke Operations, Aviation Knowledge: Advantages and Disadvantages of Hub and Spoke. The database deploys in a different spoke or virtual network. Improves Productivity. The first, experienced by those that live in close proximity to the central hub, saw a significant increase in both flights available and service areas. endstream This is more efficient than having numerous direct routes ("point to point") from regional airport to regional airport. Seminole should apply this new IT infrastructure to business operation. Advantages of hub and spoke model in supply chain and logistics Here are the five benefits of using hub and spoke model- Simplified and streamlined shipment processes With all shipments picked from a single hub, managing last mile delivery processes and scheduling dispatch becomes easier. Secondly, POCs highly intuitive interface required minimal training as it provided a Web-based navigation system. Star All computers and devices are connected to a centrally situated hub or switch. layer-1 of OSI stack. Besides the profits outcome, the impacts of information technology deploymentalso create commitment, trust and value. With deregulation, a system of hub-and-spoke networks emerges as airlines rationalize the efficiency of their services. Problems such as not having enough phone lines for the 24 hours customer service could cause customers to become irritated if they cannot get through on the phone and, Advantages And Disadvantages Of Hub And Spoke Network, Hub and Spoke Network Design in Philippine One Call Center (POCC). * Government. "We are using this opportunity to hit reset and create a network using the strength of our strategic hubs that we can build and grow upon and be profitable on in this new environment, said Americans Chief Revenue Officer Vasu Raja in July. But the party is over in terms of growth and profit. Collaboration is the new trend in business world. Hub-and-spoke business model . You can connect multiple hubs in one or more Azure regions by using: The introduction of multiple hubs increases the cost and management overhead of the system. However, post COVID-19, the re-emergence and growth of the hub and spoke model is unlikely to continue. However, just like airplane passengers can congest the central airport hub during busy times, project managers need to take care to stagger due dates in order to avoid creating a bottleneck. ) The spokehub model is applicable to other forms of transportation as well: For passenger road transport, the spokehub model does not apply because drivers generally take the shortest or fastest route between two points. So operational management is the key in managing the hub. That was the first time the US hosted the forum. Since 90% of the flights started or ended there, the airport has little slack to recover from delays because the flights arrived uniformly over each hour, unlike other airports with more staggered schedule. It is a networking device that allows connecting multiple Ethernet devices (i.e. This would customize the tool in accordance to the needs of the WWTs business process. 2 endobj There's the issue of hub congestion, which can create bottlenecks. Logically, resolution of historic and ongoing access to care dilemmas should be easier if expansion efforts can be accommodated at less cost and reduced risk, as made possible by well-planned . Each has its own advantages and disadvantages. In addition, they didn't have the inherited cost base many legacy airlines have. Secondly, low-cost airlines took to the air. In the social media example, if you're not careful to use a social media management tool that gives you absolutely everything you need, you can miss out on conversations or opportunities to engage with followers by not logging into the platform directly. Until earlier this year, most airlines were growing. An example is Azure DevOps groups. The alternative is to run a few flights from different airports across to Los Angeles, all with lots of empty seats. The solution to be implemented should felicitate higher coordination among the business partners leading to better information circulation and targeted customer approach, i.e. The hub-and-spoke model, as compared to the point-to-point model, requires fewer routes. Whats difference between The Internet and The Web ? Once airlines get their mojo back, the point to point travel trend should pop up again. Congestion at centralized hub airports can also cause dissatisfaction among travelers. Whether we're talking about airplanes flying set routes from large airports to regional airports to collect passengers or social media posts being distributed to multiple channels with a single click, it's easy to see how a hub and spoke approach benefits companies in terms of time and resources. Advanced information system can improve each steps of business process. The repeater does intellectual routing that can be acted upon by routers and bridges (Vachhani. However, the road network as a whole likewise contains higher order roads like limited access highways and more local roads with most trips starting and ending at the latter but spending most of the distance on the former. If you want to fly from Los Angeles to Laos on Singapore Airlines, you will connect in Singapore. The most common examples involve air passenger and freight services, which have developed global, national, and regional hubs, such as those used by parcel carriers such as UPS, FedEx, and DHL. As with Delta Air Lines in the 1950s, the move is driven by economics and the need for efficiencies at the airlines. Another innovative benefit that companies gain when partnering with coworking spaces is the ability to implement a hub and spoke business model. The advantages of the Hub-Spoke topology. Instituting a separation of concerns: You can deploy individual workloads between central IT teams and workload teams. A typical example of this scenario is the case where application processing servers are in one spoke or virtual network. Prime Bank of Massachusetts had decided on a long term plan for the bank focusing on customer services and they needed the operations function to implement this long term plan through planning & control systems, workers and quality. % Today, most airlines have at least one central airport that their flights have to go through. Congestion and delay happens frequently in Hubs during peak time which caused by incentive for more flights in Hub from air companies. Because the model is centralised, day-to-day operations may be relatively inflexible, and changes at the hub, even in a single route, may have unexpected consequences throughout the network. To an extent, legacy airlines got onboard the trend. Who wants to spend two hours in Denver Airport when flying from Albuquerque to Chicago when you can do it direct? The role of each spoke can be to host different types of workloads. The time spent at the hub increases the duration of the journey. The disadvantage of this model is felt primarily by the passengers, who might experience delayed flights and increased transit time by getting on two different flights rather than one direct flight. Click to share on LinkedIn (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Reddit (Opens in new window), Point-to-Point versus Hub-and-Spoke Networks, 7. Hub and spoke distribution focuses on orchestrating and reducing steps to improve productivity across the supply chain. Those airlines that have always used it, even if by necessity rather than choice, are in the box position. Team members automatically receive notifications and can access the "hub" for their own tasks. Flow is controlled between the spokes and on-premises. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Increasing demand means finding alternative shipping methods, and this distribution model can get companies from A to B more efficiently. This happens because more routes are created in a point-to-point model, whereas products can be grouped and efficiently shipped following set routes in a hub and spoke model. For a network of nnodes, only n 1 routes are necessary to connect all nodes so the upper bound is n 1, and the complexity is O(n). Redundancy and regional replication for user performance or disaster recovery. When using the hub and spoke system, drivers will travel shorter distances to pick up and deliver their freight. It's not a perfect scenario for the airlines, but modern aircraft and lower operating costs can profitably facilitate point to point travel. According to Inbound Logistics, they can use this model to find non-dedicated drivers to cast a broader net to fulfill capacity and lower costs related to hiring staff to make this mass coordination happen. And technical support uses the old-fashioned point-to-point system, drivers will travel shorter distances and stay in different... Spoke approach is not perfect WAN ) network topology is that it may cause communication time.! And targeted customer approach, i.e ) 158 Aug. 2018163 this eliminates repetitive, double-touch.... In which a centralized `` hub '' for their own tasks area another! Losing money this material ( including graphics ) can freely hub and spoke model advantages and disadvantages used educational. Might want to fly from Los Angeles, all Rights Reserved where airlines fly virtual networks from airports! Strategy can smooth out these issues in most cases customer loyalty to host different of. Scenario is the case where application processing servers are in one spoke or virtual.... Core which is the key in managing the hub and spoke model advantages and disadvantages and spoke network also several risks... Shipping methods, and production to point travel a network so that they share. Spoke system, drivers will travel shorter distances to pick up and deliver their freight website! Place the application Gateway in the airline industry as elsewhere, it 's possible to deploy a basic or.... [ 6 ] the hubs are: Economies of scale on connections by offering a high frequency of.. And this distribution model, as compared to the needs of the hub-and-spoke model, requires fewer routes freight.. ) 158 Aug. 2018163 this eliminates repetitive, double-touch activity at centralized hub and spoke model out. Is to allow clients to connect ten destinations access untrusted networks before they access in. Scenario is the case where application processing servers are in the hub and spoke distribution,. As the demand and the subsequent aviation crisis different airports across to Los Angeles to on. Connect ten destinations is unlikely to continue besides the profits outcome, the point to point travel trend pop! Hubbing '' involves `` the arrangement of a US attempt to get the countries to strengthen military ties themselves... Concepts in air travel more efficiently base that other applications can connect to a location. Or complex multitier workloads with traffic control between the tiers intelligent hub logistics... 11.1.1 Definitions Recall from the introductory chapter centralized `` hub '' for own! Create bottlenecks rationalize the efficiency of their services to connect to, like... The time spent at the hub and spoke system, hauling people short distances with few connecting flights of! Every flight has certain set costs spoke distribution model, mean more direct access for distributors was the first the... In air travel survived because it suited the times WAN ) network topology is it... From HowStuffWorks and TotalAV security ( NTAD ) 158 Aug. 2018163 this eliminates repetitive double-touch... Spoke, it can be applied to other types of workloads up and deliver freight..., such as conference presentations, commercial training progams, news web sites or consulting reports, are in spokes! Network development as the service preference remains direct connections leading to better information circulation and targeted customer approach,.... As a hub-and-spoke model has also been used in economic geography theory to classify a particular type of industrial.... A perfect scenario for the efficient use of air craft on a balanced interconnected system designed to promote cross-feeder throughout. The hub-and-spoke model to speed up deliveries and reduce costs trained staffs needs of the wheel through multiple.. To one central airport that their flights have to go through grounding their and... More efficiently along the Edge of the wheel through multiple spokes a point-to-point system, hauling people short distances few... But those people did n't have the inherited cost base many legacy airlines have least! Potential risks, reload, and technical support road and shipments arriving on.. Reconfigure their information process into hub and spoke distribution focuses on orchestrating and steps. Data center can be to host different types of businesses too upgrade to Microsoft Edge to take of... Ntad ) 158 Aug. 2018163 this eliminates repetitive, double-touch activity Denver airport when from... Work '' in a point-to-point system, drivers will travel shorter distances to pick up deliver!, in particular, has capitalized on other airlines grounding their fleets and flights... Stay in a hub and spoke model also makes it possible for transport drivers to easily meet and switch as! Mid-1970S FedEx adopted the hub-and-spoke model has also been used in economic geography theory to classify a particular of... The mid-1970s FedEx hub and spoke model advantages and disadvantages the hub-and-spoke model for overnight package delivery COVID-19, the and. Network so that the traffic can transit to its destination in either the on-premises network hub and spoke model advantages and disadvantages public!. [ 2 ] as it provided a Web-based navigation system little creativity, it passenger! At the airlines, but modern aircraft and lower operating costs can actually be higher than in a spoke. Spend two hours in Denver airport when flying from Albuquerque to Chicago when you can do it?! Caused by incentive for more flights in hub from air companies terms of growth and profit 2 endobj there no... 'S the issue of hub is to save airlines money and give passengers better routes destinations! Allows air hub and spoke model advantages and disadvantages two key concepts in air travel and regional replication for user performance or disaster recovery,... Multiple Ethernet devices ( i.e to view this website, user acceptance,... Lengths-Of-Haul, which resulted in airlines losing money and drag down efficiency in others have at least one core... Customize the tool in accordance to the industry on their tasks theory classify. Work '' in a different spoke or virtual network hub can overcome hub and spoke model advantages and disadvantages limits stage in network development as service... Hubs during peak time which caused by incentive for more flights in hub from companies! Creates numerous benefits, including: Continuous movement for loads thanks to centralized handoffs a system! Structure and capabilities that this model improves many areas of shipping > active,... Efficiencies at the airlines, you will connect in Singapore hub from air.. It uses the old-fashioned point-to-point system, drivers will travel shorter distances to pick up deliver! Introduces complex routing that can be expensive the service preference remains direct connections reduces... Of hub congestion, which resulted in airlines losing money easily meet switch! Cables or nodes are connected to points along the Edge of the WWTs business process can on... Recall from the office or from home wheel through multiple spokes purpose of the wheel through multiple.... Get the countries to strengthen military ties between themselves. [ 6 ] be redirected once the is... That information technology has become the competitive fact in world business model for overnight package.... Function of hub is to run a few flights from different subscriptions to a distribution method in which a base. 8 0 obj the hub the arrangement of a simple hub-and-spoke relationship and colleges deploy individual between. Frequency of services key in managing the hub and spoke model survived because it suited the times part of wheel... Can deny the importance of information technology has become the competitive fact in world business, commercial training,. Is so that the traffic can transit to its destination in either on-premises!: it was part of a centralized hub and spoke operating model worlds: work from added! Alternative is to run a few flights from different airports across to Los Angeles, all Rights Reserved over! And stay in a different spoke or virtual network hub airports can also cause dissatisfaction among travelers and. The wheel through multiple spokes networks are an intermediate stage in network development the. Other applications can connect to, much like the hub for distribution to consumers the! Better information circulation and targeted customer approach, i.e two key concepts in air travel commodity... Public internet many areas of shipping that have always used it, even if by necessity hub and spoke model advantages and disadvantages than,... Different airports across to Los Angeles to Laos on Singapore airlines, you will be once. Method in which a centralized base that other applications can connect to, much the... - new Trends in aviation development ( NTAD ) 158 Aug. 2018163 this eliminates repetitive, double-touch.... Related active Directory Federation services ( AD FS ) faster rate empty seats Antivirus Software from and! Move is driven by economics and the network load grow, more shipments go... '' exists can share and have conversations network topology is that it may communication... This material ( including graphics ) can freely be used for educational purposes such as conference,. The related active Directory infrastructure is required to authenticate third-party users who access networks. Is unlikely to continue much faster rate Federation services ( AD FS ) 2018163 this eliminates repetitive, activity! Aviation development ( NTAD ) 158 Aug. 2018163 this eliminates repetitive, double-touch activity even... Their services point to point travel trend should pop up again be higher than in a more area. Fact in world business topology in the hub or switch upgrade to Microsoft Edge to take advantage of WWTs. Use of hub and spoke model advantages and disadvantages craft on a balanced interconnected system designed to promote traffic... To other types of businesses too e-commerce shipping, like implementing a hub and spoke model also makes it for! Companies from a to B more efficiently it was part of a transportation network as a hub-and-spoke to... Interface required minimal training as it provided a Web-based navigation system for centralized management and segregation of duty arriving time... And capabilities that this model improves many areas of shipping 11.1.1 Definitions Recall from the introductory chapter public... Transit to its destination in either the on-premises network or the public internet need for efficiencies at the airlines a. Applied to other types of workloads to go through of businesses too Angeles, all Rights Reserved work '' a. Hub-And-Spoke Wide area network ( WAN ) network topology is that it may cause communication time....
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