Assignment
1. Introduction
NetFlow is one of the networks technologies that need to be keep up rapidly. NetFlow is a network protocol developed to accumulate IP traffic data and monitor network traffic. Analyzing flow data, a picture of network traffic flow and volume can be built. Having a flow collector and data analyzer such as NetFlow, allows user to see where network traffic is coming and going to and how much traffic is being generated.
The latest Cisco IOS innovation of NetFlow of version 9 is flexible and extensible method to record network performance data. A comprehensive solution for NetFlow-based, planning, monitoring and billing can provides to customers.
2. NetFlow Overview
2.1 Netflow Operation
Figure 1: Cisco IOS NetFlow
NetFlow includes three key components that perform flow accounting; data switching, data export and data aggregation. As for NetFlow Flow Collector it does data collection, data filtering, data aggregation, and data storage and file system management. Lastly, Network Data Analyzer gives data presentation and NFC Control and configuration partner applications.
Process will be explained in details below.
2.1.1 Flow Accounting
Flow caching analyses and collects IP data flows entering router or switch interfaces and prepares data for export. Enables the accumulation of data such as IP addresses, application and CoS. Flexible flow data is now available using latest NetFlow v.9 export data format. NetFlow supports key technologies, including IPv4, IPv6, Multicast and Multiprotocol Label Switching (MPLS).
2.1.2 Flow Collector
Flow Collector and data analysis captures exported data from multiple routers and filters the data according to customer policies, and then stores the aggregated data. Users...
... middle of paper ...
...
4. Conclusion
NetFlow behaves as:
Application and network usage
Network productivity and utilization of network resources
Impact of changes to the network
Network anomaly and security vulnerabilities
Long term compliance issues
Hence, NetFlow Cisco IOS accomplishes those needs, creating an environment where administrators have the tools to understand the network flowing. The increased of awareness also helps to reduce vulnerabilities of the network as it allows efficient operation of the network. Improvements in the network operation lower costs and drives higher business revenues by better utilization of the network infrastructure.
The benefits of the NetFlow are:
Understand the impact of network changes and services
Improve network usage and application performance
Reduce IP service and application costs
Detect and classify security incidents
In order to protect the application servers from the internet, the most common un-trusted network, the proposal suggests a firewall to be installed between the internal network and external router. The firewall would be an Adaptive Security Appliance (ASA) firewall, "the ASA is not just a pure hardware firewall. In brief, the Cisco ASA is a security device that combines firewall, antivirus, intrusion prevention, and virtual private network (VPN) capabilities. It provides proactive
COMP09022 Network Design BSc COMPUTER NETWORKING COMP09022 ICMPv6 Prepared by B00270675 13-03- 2015 WORD COUNT (0000) TABLE OF CONTENTS TITLE PAGE……………………………………………... 1 TABLE OF CONTENTS………………………………….. 2 INTRODUCTION TO THE REPORT……………………. 3 TABLE OF FEATURES.......................................................4
Cisco Designs, manufactures, and sells Internet Protocol (IP) - based networking and other products related to the communications and information technology (IT) industry and provide services associated with these products and their use. The company provides products for transporting data, voice within buildings, across campuses and globally. The products are utilized at enterprise businesses, public institutions, telecommunications companies and other service providers, commercial businesses, and personal residences. Cisco conducts its business globally and manages its business geographically. Its business is divided into the following three geographic segments: The Americans; Europe, M...
Data Analytics has significantly grown in less than two years, this quick growth has caused the company to evaluate the IT environment and its ability to support the growth and secure the data of the company. The CEO is expecting the company to grow 60% over the next two years; with the success of the company it has been determined that a change to the current IT environment and infrastructure must occur to better support the employees and the customer base.
KNX If you need up-to-the-minute traffic reports and weather forecasts in addition to breaking local, national, and global news, “KNX 1070 NEWSRADIO” is the Southlands station of choice. KNX is the only all-news radio station in the Greater Los Angeles area. The following information in this paper references the hour long broadcast which occurred at 10:00pm on October 9, 2014. KNX had several newscasts within the hour.
Cisco Systems is one of the largest network communications company in the world. Cisco provides networking solutions that customers use to build a integrated information infrastructure of their own, or to connect to someone else’s network. Cisco also offers an extensive range of hardware products used to form information networks, or to give them access to these networks. Cisco also has it’s own software called IOS software, which provides network services and enables networked applications. Cisco serves customers in a wide range of businesses, such as corporations, government agencies, utilities, and educational institutes, and small to medium size businesses. Cisco sells it’s products worldwide. They serve as many as 115 different countries. They have more than 225 sales and support offices in 75 countries. Cisco strongly believes in the advantages of a global networked business. By using networked applications over the internet and it’s own internal network, Cisco is gaining financial contribution of at least $825 million a year in operating costs savings and revenue enhancements. Today, Cisco is the largest commerce site, with 87% of their orders are transacted over the web.
...g system that supports the scalability of their data. The following is their input on their new proposal to create a new operational insight tool in order to provide a solution to their challenge:
Although VPN is very popular in the market for networking technology, it may raise some concerns for IT managers. VPN requires an in-depth understanding of public network security issues and proper deployment precautions. The task of choosing and deploying a VPN solution is far from being simple and may require the training of workers in at least the basics...
Now days, companies are searching for new ways of gathering data so that they can get useful data in order to make well informed decisions regarding the market they are operating in. Google analytics is considered one of the best tools offers extensive amount of data to business owners for free. However, the success of business is highly depended on how well they can arrange data and customize their collected data corresponded to their business priorities. Google analytics provides beneficial information for companies regardless of their extent of operation. Google Analytics (Location data)
capacity and performance. However, as networks enable more and more applications and are available to more and more users, they become ever more vulnerable to a wider range of security threats. To combat those threats and ensure that e-business transactions are not compromised, security technology must play a major role in today's networks.
of multiple types of end users. The data is stored in one location so that they
Computers in technological development demand more efficient networking. In a very short period it has changed the way we have looked at things since centuries. It is one industry that is going to shape our future for centuries to come Coming from a background of Electronics and Communication Engineering, I have developed an interest to probe into the area of Networking and Computer Networks. Hence I wish to do Masters in Computer Science (CS) as my major.
Networks in organisation are dynamic and complex entities which can be quite challenging to configure and manage. (Kim & Feamster 2013). These corporate networks consist of multiple routers, switches, firewalls, middleboxes and a particular advantage of network management is the ability to monitor the entire business network. As all the devices are interconnected with many event occurring simultaneously, problems with once device can eventually lead and spread throughout...
A critical part of network planning involves setting up of security mechanisms. Deploying the network with security configuration provides superior visibility, continuous control and advanced threat protection across the extended network. Additionally, security procedures define policies to monitor the network for securing critical data, obtain visibility, mitigate threats, identify and correlate discrepancies.
The TCP/IP is the most important internet operation protocol in the world. While IP protocol performs the mass of the functions which is needed for the internet to work. It does not have many capabilities which are essential and needed by applications. In TCP/IP model these tasks are performed by a pair of protocols that operate at the transport layer. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP). These two protocols are vital when it comes to delivering and managing the communication of numerous applications. To pass on data streams to the proper applications the Transport layer must identify the target application. First, to be able to attain this, Transport layer assigns an application an identifier. In the TCP/IP model call this identifier a port number. Every individual software process needing to access the network is assigned a un...