However, service providers require low cost network to optimize profit. This paper analyzes installation cost of opaque networking system, transparent networking and translucent networking systems as types of optical mesh networks. To examine Optical mesh network types and analyze their installation cost effective factor one needs to base observation on the following basic network service providers concern for a core optical mesh. Cheap network elements that will not cost the operator a lot in procuring and installing or that needs less re-engineering. Non-proprietary constrained network utilities, option of buying from different vendors Scalability with low footing expense Service assurance with capacity and redundancy Fault detection and management beyond installation Transparent network This Optical network sends signal from source to destination in form of light path. The optical information is passed through optical switch and routers from the initial generator to final destination. The wavelength doesn’t undergo optic-electric conversion (O/E), client network element like a router will interface by use of long haul optics to communicate with the wavelength division multiplexer, making it to remain in the same wavelength. Meaning the information remains in optical domain (OOO) and there is no optical-electronic-optical (OEO) conversion, only a small switching fabric is needed to interconnect the wavelength division multiplexers and client element nodes. Remaining in optical domain creates a simple node architecture at its intermediate switch nodes since no electronic switching fabrics is needed to access wave division multiplexers (WDM), this saves cost and space. It employs nodes like directionless / colorless Reconfigurable Optical Add Drop Multiplexers (ROADM) or Optical Cross Connects (OXC). It is also easy to carry out an upgrade of such a network because of insensitivity of data rate change and protocol of light channel. Transparent network can also employ another cost effective architecture switch that may include a single large fabric instead of multiple switch matrices of small port counts but this also contributes negatively on lack of flexibility. However it has draw backs. According to Boullet and Ellinas, “if one is to provide flexibility, such an architecture design would require the use of tunable lasers at the clients and wavelength conversion. Since signal from client remain on the same wavelength when there is no wavelength conversion only a small size switch fabric is needed to interconnect the WDMs and NEs in a node, which translates to switch scalability” (Boullet & Ellinas, p. 5). Inflexibility leads to increased band width and network operational cost. This negates the saving advantage. Transparent networks needs a centralized planning of each link, this is because of disjoint links since no conversion of the wavelength occurs creating a network of n, where n is the number of WDM channels. This builds a network for unrestricted routing and redundancy capacity sharing involving only optical but would lead to increased bandwidth and network cost. On regeneration
Cost efficiency of Opaque Network System, Transparent Network System and Translucent network system of Mesh Optical Network System Name: [student inserts name] Course: [student inserts course] Tutor: [student inserts tutor name] Date: 09. 12. 2011 Cost efficiency of Opaque Network System, Transparent Network System and Translucent network system of Mesh Optical Network System Introduction With strategic evolution in telecommunication networks and ever increasing multimedia demand by telecom consumers, optical mesh network is solution to any service provider…
This paper discusses some of the potential threats to network security and the ways to mitigate them. The paper also renders useful information about network security policing. Information presented in paper can be used by companies to improve their network security and make the system efficient.
As network vulnerabilities are constantly at a rise, network security vulnerabilities are evaluated in three categories i.e. logical security, internal security and external security. The logical security domain will cover technical controls such as deployment of IDS, Virtual LAN, monitoring violation logs, auditing on domain environment, ISA server and VPN security as well.
5 Threats and Vulnerabilities to a network 6 Threats to a network 6 Types of Vulnerabilities 9 Network Security Policy 10 Firewall 11 Internet Protocol Security 11 References 13 Abstract Networks from the time of their birth have come a long way. Initially, they were only used in large firms and businesses.
New systems are being developed to effectively handle and administer corporate working and activities. However, security has become a complex assignment for current network administration. Normally, attackers enter into a network by making use of different tools and technologies.
Additionally, different people have different views about network management. In addition, to run a business effectively it is necessary for the IT managers to make sure that the corporate IT arrangement (composed of locations, departments as well as services) is carrying out tasks effectively.
Moreover, services provided on the web are considered value added, in terms of customer satisfaction and feasibility. Furthermore, financial institutions have introduced online banking that is a treat for cyber criminals to achieve massive revenue by intercepting large online transactions.
In the same way, the Internet is a huge network of numerous small and medium networks. Additionally, the Internet has turned out to be an essential part of our lives and business tasks. Though, these advanced technologies offer a large number of benefits and opportunities but they also cause a wide variety of security and privacy issues.
Introduction of a new technology in an organization affects the way in which the staff members of the concerned organization will access or manage information. However, in the absence of a thoughtful strategy or a realistic expectation, a new system can end up creating more problems (Coyotec, 2009).
Though, these advanced technologies offer a large number of benefits and opportunities but they also cause a wide variety of security and privacy issues. These issues can be dangerous for personal information safety and privacy. Thus, network management
According to the report for any given organization, network security involves the introduction of polices that would protect the available network to ensure unauthorized persons do not access or use the organizational information. Consequently, internet security has become one of the most researched aspects of information technology.
10 pages (2500 words)Research Paper
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