Computer networks Essay Example | Topics and Well Written Essays - 3500 words

Computer networks - Essay Example Moreover, Cisco devices deliver integration features that will support compatibility and scalability issues with upcoming applications and services. For addressing, network security, again Cisco firewalls are implemented to protect the network from viruses, worms and probes. In summary, Cisco 3845 integrated service router is implemented for exchanging communication from the local area network interface to the WAN interface. The router provides productivity, integration and enhanced features along with Cisco 3845 (ISR) Site-to-Site VPN Support, Cisco 3845 (ISR) Remote Access VPN Support, Cisco 3845 (ISR) Network Admission Control support, Cisco 3845 (ISR) Digital Voice Call support , Cisco Unified Communication Support and Unified Survivable Remote Site Telephony (SRST) support. Moreover, data switches are also acquired from Cisco named as Cisco Catalyst 3750 that provides enhanced features. Moreover, for wireless networks, Cisco Unified Wireless network featuring Cisco Wireless Cont rol System along with Cisco 4400 Series Wireless LAN Controllers are deployed. Furthermore, the wireless network also supports Cisco Clear air Technology. For remote connectivity and scalability, Cisco service mobility engines are installed. For application support, SOAP and XML Support and Context aware Services are available. In addition, for addressing network security, Cisco ASA 5500 Series Adaptive Security Appliances (For Wired Network), AIP-SSM Intrusion Prevention Module and Wireless Intrusion Prevention System (W IPS) (For Wireless Networks) is operational. Fig 1.1 demonstrates the local area network of an organization below: Figure 1.1 (LOCAL AREA NETWORK) Structure and Cabling The current network is constructed on Star topology that is the most widely adopted topology, as it has many benefits when compared to other topologies. By implementing star topology, network engineers can administer and troubleshoot the network more efficiently and effectively. Star topology provid es a one stop monitoring screen that demonstrates activities on the local area network. Likewise, the cost of implementing and managing the local area network is comparatively low, as less resources and low network downtime occurs. Moreover, network security is addressed efficiently, as monitoring of each system or service is carried out