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I have 10 years' experience in the ICT sector. I have worked for a number of South African companies as a network engineer. In the process I have been able to acquire the CCNA and CCNP certifications and also other certifications such as the ITIL Foundation.
TCP/IP is the defacto standard charged with reliable transportation of data or voice over Cisco or other OEM platforms. There is also the conceptual 7 layer OSI model which guides engineers in understanding other technologies and how they talk to one another in a layered approach. As a network engineer you concentrate on the layers 1 to 4 for troubleshooting purposes. Layer 1 is the physical, layer 2 Data, layer 3 network and layer 4 transportation layer. So knowing what operates at these layers makes it easy for either 1st line support or 3rd line support to have a troubleshooting methodology that works and cuts down on time spent on resolving connectivity issues.
There are also other ways to see this type of communication in real time through sniffers such as Wireshark and thus having an understanding of TCP/IP will make it easy to best analyse connectivity issues. I have had the opportunity of also of working in the WiFi environment that uses ruckus and cisco platforms.
In 2000 BCSnet Network Administrator (cabling, switches and routers). 2001 to 2005 Vodacom Network Admin for the Vodashops network, overtime and standby duties included. Mid-2005 Huawei Technologies as a Product Manager, designing solutions for prospective clients. 2007 Bihati Solutions as Account Manager. I currently work for Dimension Data as a network engineer. My recent employer of two years was Vast Network, the biggest WiFi installer in South Africa.
