Cloud Computing vs Big Data: What Is the Relationship?

Cloud computing and big data are two of the most trending terms in the ever-lasting IT sector nowadays. You may think that they both do the same thing but actually, both of them have their own ways to work to perform. Cloud computing vs big data, what are they? What is the relationship between them?

Cloud Computing Tutorial

Cloud computing is a technology used to store data and information on a remote server rather than on a physical hard drive. It uses the servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer. It means accessing resources of organization from any remote location in the world. In simple term accessing RAM, HDD, Processor of organization’s server from laptop, desktop from any of the location where Internet is available.

As shown in the figure above, cloud computing is collection of different services, providing services to end user via the Internet. Services like storage, virtual desktop applications, Web/App hosting process power from servers. In the following architecture, the infrastructure built to provide services is called cloud computing. This infrastructure from where the services gets accessible is front end.

Big Data Wiki

The term big data is very popular nowadays, representing huge sets of data that can be further processed to extract information. Big data carries hidden patterns and algorithms which are unlocked by using various tools available in the market. These data sets are further analyzed to provide business insights. Big data is all about storing and processing of data that is exponentially growing these days. Giants like Google, Facebook are having their own data centers to keep track and to secure their users’ data. That’s also why many big companies are equipped with reliable network equipment (including the server, router or fiber switch) for data storage or traffic forwarding in their data centers. For high performance and cost-effective enterprise routers, Gigabit Ethernet switch and 10gbe switch, FS is a case in point.

Big data requires a large amount of storage space. While the price of storage continued to decline, the resources required to leverage big data can still pose financial difficulties for SMBs (small to medium sized businesses). A typical big data storage and analysis infrastructure will be based on clustered network-attached storage (NAS). Clustered NAS infrastructure requires configuration of several NAS pods with each NAS pod comprised of several storage devices connected to an NAS device. The series of NAS devices are then interconnected to allow massive sharing and searching of data.

Key Comparisons Over Cloud Computing vs Big Data

The cloud computing works in a consolidated manner, while the big data comes under the technology of cloud computing. The crucial difference between cloud computing vs big data is that cloud computing is used to handle the huge storage capacity to provide various flexible and techniques to tackle a magnificent amount of the data. While big data is the information processed with cloud computing platform. The following chart gives a more detailed comparison over cloud computing vs big data.

	Cloud Computing	Big Data
Basic	On-demand services are provided by using integrated computer resources and systems.	Extensive set of structured, unstructured, complex data forbidding the traditional processing technique to work on it.
Purpose	Enable the data to be stored and processed on the remote server and accessed from any place.	Organization of the large volume of data and information to the extract hidden valuable knowledge.
Working Mode	Distributed computing is used to analyse the data and produce more useful data.	Internet is used to provide the cloud-based services.
Benefits	Low maintenance expense, centralized platform, provision for backup and recovery.	Cost effective parallelism, scalable, robust.
Challenges	Availability, transformation, security, charging model.	Data variety, data storage, data integration, data processing, and resource management.

Cloud Computing vs Big Data: They Work Hand in Hand

Both cloud computing and big data are good at their marks. Cloud computing vs big data: they differ from each other but work hand in hand. They are the perfect combination for data storage and processing. The cloud computing has been a precursor and facilitator to the emergence of big data. If big data is the content, then cloud computing is the infrastructure.

Originally published at http://www.fiber-optic-tutorial.com/cloud-computing-vs-big-data-relationship.html

VLAN Configuration Guidelines on Layer 3 Switch

As networks grow larger and larger, scalability becomes an issue. Every device in the network needs to send broadcasts to communicate in a broadcast domain . As more devices are added to the broadcast domain, more broadcasts start to saturate the network. In this case, VLAN (Virtual LAN) is needed to separate broadcast domains virtually, eliminating the need to create completely separate hardware LANs to overcome this large-broadcast-domain issue. In this post, we’re gonna expound the motivators to deploy VLAN and how to set up VLAN configuration step by step.

Motivators to Implement VLAN

VLAN is a way of creating multiple virtual switches inside one physical data switch. There are a lot of reasons to implement VLAN, some of which are listed as follows.

• Link Utilization: Link utilization is another big reason to use VLANs. Spanning tree by function builds a single path through your layer 2 network to prevent loops. If you have multiple redundant links to your aggregating devices then some of these links will go unused. To get around this you can build multiple STP topology with different VLANs.
• Service Separation: If you have IP security cameras, IP Phones, and Desktops all connecting into the same switch it might be easier to separate these services out into their own subnet. This would also allow you to apply QoS markings to these services based on VLAN instead of some higher layer service. You can also apply ACLs on the device performing Layer 3 routing to prevent communication between VLANs that might not be desired.
• Subnet Size: If a single site becomes too large you can break that site down into different VLANs which will reduce the number of hosts that see need to process each broadcast.

VLAN Configuration Guidelines on Layer 3 Switch

Configuring two or more VLANs to communicate with each other requires the use of either a VLAN-aware router or a Layer 3 switch. VLAN configuration can be accomplished either in CLI interface or in Web interface. The following video is a VLAN configuration example on FS S5800/S5850 10 gigabit switch.

Configure VLAN in CLI (command-line interface)

Here we take FS S5850-32S2Q Layer 3 switch as an example to configure VLAN. To create a VLAN via CLI interface, SecureCRT software is required to enter CLI interface, then perform the VLAN configuration command in the chart below:

Procedure	Command	Purpose
Step 1	Set the parameters of COM2 port	Quick connect on startup
Step 2	#enter	Enter CLI interface
Step 3	#configure terminal	Enter the global configure mode
Step 4	#vlan database	Enter VLAN configure mode
Step 5	#show vlan all	Check the details of all VLANs on the switch

Configure VLAN in Web Interface

Configuring VLAN in Web Interface is quite simple. Just perform the following two steps and you would see the basic info of the VLAN that is created.

Step 1: Log in the Web user interface using the account and password

Step 2: Find the service management and create a new VLAN, and set its ID as 10 or 20.

Note: Ports configured to use VLAN 10 act as if they're connected to the exact same switch. Ports in VLAN 20 can not directly talk to ports in VLAN 10. They must be routed between the two or have a link that bridges the two VLANs

Summary

VLAN deployments make it easy for network engineers to partition a single switched network to match the functional and security requirements of their systems without having to run new cables or make major changes in their current network infrastructure. The proper VLAN configuration on Layer 3 switches ensures reliable and secure data link access to all hosts connected to switch ports. Knowing more about VLAN configuration would allow you to use them when you need them and to use them correctly when you do.

Source: http://www.fiber-optic-tutorial.com/vlan-configuration-guidelines-layer-3-switch.html

LAN vs WAN vs MAN: Which One to Choose?

Network is essential for establishing communications among devices such as computers, routers, or fiber switches to operate over the area they cover. LAN ((Local Area Network), WAN (Wide Area Network) and MAN (Metropolitan Area Network) are the three most prevalent types of networks that are utilized today. There are some similarities and differences between them. LAN vs WAN vs MAN, which one should you choose?

What Is LAN?

LAN is an interconnection of a group of related networking devices within a small geographical area where the distance between these devices is small. Some of the LANs also cover the networks in office , school, and home. Most of the LANs are built for the purpose of sharing vital resources such as printers and exchanging files.

LAN is also widely used to provide services such as sharing computer applications, gaming and accessing the internet. This type of network is under the control of one administrator who is in charge of the configurations and settings and other devices connected through Ethernet cables and wireless routers.

What Is WAN?

WAN is a kind of network connection between multiple networking devices over a large geographical area. The connection can be between different cities or even countries. A WAN network can be a collection of small networks that have been combined, or it can be as a result of various private business entities. One good example of WAN is the internet, since it connects computers from different corners of the world.

The WAN network is too complex to be managed by private administrators. Therefore, WANs usually have a public ownership, where network devices in this network can be connected either by cables or through a wireless connection.

What Is MAN?

As the name suggests, MAN is a type of network that connects network devices within a specific geographical area. MAN lies in between LAN and WAN. The area covered by MAN network is larger than that in LAN but smaller than that in WAN. MANs are mostly used to provide fast connections to cities and large institutions.

MAN experiences comparatively high speeds to facilitate fast sharing of resources such as files within a city. One main disadvantage of the MAN is the high cost. The technology deployed for MAN network is pricier than that of LAN and WAN.

Key Comparison Between LAN vs WAN vs MAN

LAN vs WAN vs MAN, there are similarities and differences between them as listed in the chart below.

Parameter	LAN	MAN	WAN
Ownership of Network	Private	Private or Public	Private or Public
Design and Maintenance	Easy	Difficult	Difficult
Propagation Delay	Short	Moderate	Long
Speed	High	Moderate	Low
Congestion	Less	More	More
Application	College, School, Hospital	Small towns, City	Country/Continent

Conclusion

Generally speaking, there are many advantages of LAN over MAN and WAN. LAN provides excellent reliability, high data transmission rate, and they can easily be managed. However, LAN cannot cover cities or towns and for that MAN is needed, which can connect city or a group of cities together. WAN is not restricted to a geographical location, although it might be confined within the bounds of a state or country. No matter which kind of network you choose, the routers or network switches you choose should be eligible to better satisfy your demand for network architecture. FS provides high performance gigabit PoE switch, 10 gigabit switch, 40 gigabit switch,etc. If you have any requirement, you can kindly visit www.fs.com.