Ensuring visibility in network traffic

EVER FACED a problem in retrieving data after the system recovers from a crash? If a company has robust Network Management in place, there are little chances of losing data. Similarly, recklessness towards network and information that flows across a network cannot only impede the speed of the work, but also can affect the progress of a business.
In addition to this, the apathetic behaviour of a network is exasperating for the users connected to the network, but what it is that actually causes the network to become passive and torpid?
Network Traffic
What happens when one is stuck in bumper to bumper traffic while going back to home from office? The vehicles move at a snail’s pace and it takes a lot of time for the person to reach his destination. The same situation occurs along with some other glitches when there is an information/data overload on the network. The data or information that travels across network in the form of packets constitutes network traffic, which is the major reason behind unresponsive network.
Rather, it is a weakness of network monitoring that raises visibility issues, but why it is important to ensure visibility and what can be done to achieve visibility?
Steps to Ensuring Visibility
There are three ways by which greater visibility can be created: accessing network traffic; monitoring of activities; data analysis. To ensure visibility in the network traffic, it is important to have access to data or packets that are being sent and received across network. By having access to data, it is possible to identify and distinguish data that is flowing with no commotion and the data, which is causing upheavals, but what are the ways to access data and are they all risk-free and reliable?
TAP and SPAN have been found as the two main methods of accessing data, TAP being more reliable. Initially, SPAN is inexpensive, but it becomes costly when packets drop in the mid-way before reaching the monitoring tool. This situation further aggravates that problem and makes it impossible to troubleshoot. SPAN almost fails in case of amplified internal traffic. TAP, however, allows continuous visibility in the network and rate of disruptions is lowest.
Access to data just helps in seeing and keeping an eye on the type and number of data flowing through and across the network. It doesn’t help one in knowing how the bandwidth is being used and who is guzzling more of it. Nevertheless, if the data and activities are monitored, it becomes easy to find this out. Moreover, it allows one todetermine if users are using file sharing programmes and one can also detect the presence of Trojan that is clandestinely passing on the information in the background. However, selecting a most appropriate network monitoring tool is the job of network administrator. Monitoring of data leads to capturing and analysis of data, but what if analysis of all captured data is not required?
Monitoring actually helps in filtering the data. Once it is filtered, it becomes easy to analyze data that requires analysis.  The analysis helps in identifying the underlying causes behind less visibility and network issues and leads to solutions.
The communication in the form of packets travels from user to server via router and the server then responds back to the user through router. The problems creating visibility issues can be solved either through replacing servers or increasing bandwidth i.e. the speed of the network. Bandwidth seems a skimpy hitch yet it is not that is why many companies, quite frequently, are found switching to fastest and most reliable internet connections. Actually, the process of flow of packets is affected by the speed of the type of connectivity. Simply putting ISDN cannot work in a large enterprise as it engages telephone lines and its speed ranges between few Kpbs. DSL is a better option as it doesn’t employ telephone lines, but wireless connection is the most in concept these days. It allows always-on connection, but in order to have access to it, it is must to be within a network coverage area geographically.
What does visibility yield?
Achieving visibility implies achieving cost savings and return on investment. The presence of malicious software, error counts, and identification of which protocols are using greatest bandwidth are valuable information gained through network monitoring. In short, monitoring helps in uncovering problems in network and allows provision of more network resources to the users connected to the network, thus yielding savings and more return.
A business relying on network needs to have a simple yet robust network. In the present times, where every company is making efforts to protect and safeguard their systems and information, it is important to ensure enhanced visibility in the network traffic. Even a small negligence can lead to serious repercussions such as data loss, slow processing, silent transmission and leak of the information, and business failure, which no firm wants.

Tsunami foresight Normative science perspectives

 
SINCE THE day humans came to being and started thinking about new techniques to survive on earth, the only planet we know has life, we humans have been doing foresight of some sort. We try to avoid the upcoming hazards in one way or another e.g. we try to keep ourselves safe from diseases, we try to keep ourselves healthy through stockpiling the food, we hoard luxuries by calling them necessities e.g. oil, gold, silicon etc. Humans are clever beings as they are observed to be the only ones manipulating the nature. They try to come up with sophisticated technologies to gear up their joy and security needs through different tactics of invention and innovation in addition to consensus with no regards to laws of nature. Often we hear this that we do we put on clothes, why do we do what our forefathers been doing for ages, why women take care of babies at home and men working outside, why do we give charity for the ones who suffer are only because of their wrong doings….
We humans have more tendency to think about the future for securing the things which we fear about and to giving ourselves liberty from fears and restrictions. Tsunamis are one of our fears which haunt us and we think how to take care of these which are completely unpredictable. The tendency to plan for secure future is motivating us to do foresight about these natural hazards though there is common belief that it can’t be controlled by humans but God. Still being the second to God on earth efforts are on to control and foresee the things we can’t see.
Tsunamis are earthquakes which are due to the movement of the tectonic plates deep down in earth’s crust. The movement is always for a reason but how to predict that now it is going to happen. Can we really foresight the future Tsunami or earthquake thus accordingly taking actions to avoid the damage? Do we have a technology in our mind which keeps track of these movements ultimately resulting into a simulation which results in a model demonstrating the damage which may occur due to it? Or is it just for the sake of taking actions to avoid all those actions which result in Tsunamis and earthquakes? The very common person will say that we need to overcome the damage by living a simple life, keeping away from sea, always living like a traveler so that damage, if occurs, should be minimum. Some would be there who will try to make their buildings like ships so that if it ever happens then some transformation of ship like homes may occur to save from damage by going under the ground or transforming into a vessel which is submarine like.
We have strong faith persons who believe that it is because of our deeds. We do good and the result is to have good. For bad ones, troubles and issues are always ready to happen just in a moment. These believers may have assumptions but science needs to come up with a reasoning for that. Do we have a bad impact on our environment due to a bad deed which somehow impacts our earth’s crust thus making the plates to move to at least generating a potential to make them move in near or far future? Is there a linkage between the deeds and our natural hazards? Can we come up with a research project that a common type of deed resulted into a disaster which was all natural and was out of control of human beings? May we not the study the deeds or common habits of a place where these natural disasters occur? Its all meta-physics which is based on spirits. Religions do have space for this but can science come up with a proof or a linkage between the two: Tsunamis’ Science & Normative Science.

Saiful Muluk Lake

 

The Saiful Muluk Lake is situated at the northern end of the Kaghan Valley near Naran. It is in the north east of Mansehra District of the Khyber Pakhtunkhwa Province, Pakistan. Saiful Muluk Lake is sited at an elevation of 10,578 meters (3,224 feet) above sea level it is among one of the uppermost lakes in Pakistan.
The lake is reachable by a 14 kilometers road from Naran throughout the summer season. On foot, the trek from Naran to the Saiful Muluk Lake takes about 1-2 hours. The stream is crystal clear with a slight green tone. The clearness of the stream comes from the various glaciers all around the lofty basin which nourish the lake. The climate here is fair during day time while the temperature falls to negative degrees at nighttime.
A fairy tale called Saiful Muluk, written by the famous Sufi saint Mian Muhammad Bakhsh, is related with the Saiful Muluk Lake. It is the tale of prince of Persia who fell in love with a fairy princess at the lake. The impact of the lake prettiness is of such degree that natives believe that fairies come down to the lake in full moon.
The Guardian ranked the Lake Saiful Muluk as the 5th Greatest Tourist Spot in Pakistan. Mansehra District has had a prosperous tourism industry in the past because of its numerous mountain ranges and the Saiful Muluk Lake.