On my YouTube channel I have the chance to create some videos about computer networks and share it with all the people who are interested.

"Towse Abzar Bazar Sarmaie" is a software development company. It provide software and its related network and infrastructures (SaaS) for brokerage companies who work with Tehran Stock Exchange.The following are some of my responsibilities:• Network design and implementation with security and high availability in mind• Multi data center network design and services• Configuring routers, switches and firewalls• Configuring Windows and Linux servers• Implementing DNS… Show more "Towse Abzar Bazar Sarmaie" is a software development company. It provide software and its related network and infrastructures (SaaS) for brokerage companies who work with Tehran Stock Exchange.The following are some of my responsibilities:• Network design and implementation with security and high availability in mind• Multi data center network design and services• Configuring routers, switches and firewalls• Configuring Windows and Linux servers• Implementing DNS, DHCP, RADIUS, 802.1x and many other services• Using Cisco ISE for TrustSec• Configuring VPN servers• Hardening network devices• Documenting network topology and it's changes• Monitoring networks devices, services and QOS parameters• Configuring BGP, OSPF, Static routing and Policy Based Routing• Working with Cisco, HPE, Fortinet and other network equipment• Configuring load balancers and reverse proxy servers• Configuring VMWare ESXi and vCenter• Configuring Issabel VOIP servers• Troubleshooting network problems Show less

I started teaching network courses since being a student at M.Sc. level in IT. I like teaching because it gives me the opportunity to understand the topic better, learn more and refresh my knowledge. But these are not the only reasons. I also like it because it gives me the chance to know other people and make a network and community of people with the same interests.During these years I have thought many different network courses in different cities of Iran and abroad. Some of them were… Show more I started teaching network courses since being a student at M.Sc. level in IT. I like teaching because it gives me the opportunity to understand the topic better, learn more and refresh my knowledge. But these are not the only reasons. I also like it because it gives me the chance to know other people and make a network and community of people with the same interests.During these years I have thought many different network courses in different cities of Iran and abroad. Some of them were international courses and were held in English and some of them were online courses. The following is a list of some courses I have thought:• Cisco courses including CCNA, CCNP R&S and CCNP Encore• MikroTik courses (MTCNA, MTCWE and so on) as an official trainer• CompTIA Network+ course• IPv6 Basic and Advanced workshops in Muscat, Oman in 2016 before MENOG 17 arranged by TRA Oman• IPv6 Basic and Advanced workshops in Tehran, Iran in 2018 before MENOG 18• IPv6 Basic and Advanced workshops in Mashhad, Iran in 2018 • IPv6 Basic and Advanced workshops in Muscat, Oman in 2018 arranged by Oman Research and Education Network (OMREN) in Muscat universityI have also thought the following tailored courses for some organizations:• "Network implementation" course (course material is from my book)• "Network management" course (course material is from my book)• "xDSL Service" courseI have also thought the following courses in Sadjad university of technology as a contract instructor:• Computer networks• Computer networks laboratory Show less

I have always loved writing and sharing my experiences about technology and computer networks. A few years ago, with the help of WordPress I created a web site named networkdream.ir and started writing. This web site not only helped me to share my knowledge with others but also it was helpful for understanding things better and learn more about them. Writing on this web site also helped me to document incidents that may happen rarely.

After 3 years of hard working as a network engineer I was promoted to the senior network engineer and the leader of the network team. During these years Sepanta expanded its staff, services and products. Besides being an ISP, it became a software development company. Some of its software products are CRM for DSL service providers, AAA (RADIUS) and IP PBX. With the help of these new products and our background as an ISP we started cooperating with TCI (Telecommunication Company of Iran)… Show more After 3 years of hard working as a network engineer I was promoted to the senior network engineer and the leader of the network team. During these years Sepanta expanded its staff, services and products. Besides being an ISP, it became a software development company. Some of its software products are CRM for DSL service providers, AAA (RADIUS) and IP PBX. With the help of these new products and our background as an ISP we started cooperating with TCI (Telecommunication Company of Iran) which is the biggest ISP in Iran. We provided DSL and GPON services to more than half a million users in multiple provinces of Iran. Sepanta was responsible for marketing, sale and support of these services. The responsibility of network team was designing the network, writing LOM, implementing the network and maintaining it. We used our CRM, AAA and IP PBX in all these projects. The following were some of my responsibilities and achievements:• Configuring routers, switches, firewalls, servers and other network equipment• Using VMWare ESXi and Microsoft HyperV for server virtualization• Designing networks for many projects• Writing technical plans for different projects• establishing IXP connection with many other ISPs for better QOS and saving costs• Supervising network engineers and checking their reports• Writing To-Do lists and How-To-Do documents• Keeping technical staff up to date• Troubleshooting network problems• Research and development for new projects, services, devices and incidents• Training and mentoring network engineers• Giving consultations to our partners and customers• Attending technical meetings face-to-face or remotely• Migrating to MPLS/VPLS for layer 2 connectivity Show less

Sepanta Network Solutions is an ISP and Data Center located in Tehran. Its main services includes providing Internet and VPN connections using ADSL, VDSL, point to point and multi point wireless links. It also provides colocation services and VMs in its data center.The following were some of my responsibilities:• Documenting network topology and it's changes• Configuring routers, switches and firewalls• Configuring Windows and Linux servers• Implementing DNS, DHCP, PPPoE… Show more Sepanta Network Solutions is an ISP and Data Center located in Tehran. Its main services includes providing Internet and VPN connections using ADSL, VDSL, point to point and multi point wireless links. It also provides colocation services and VMs in its data center.The following were some of my responsibilities:• Documenting network topology and it's changes• Configuring routers, switches and firewalls• Configuring Windows and Linux servers• Implementing DNS, DHCP, PPPoE and many other services• Configuring Cisco and MikroTik routers as BRAS• Configuring VPN servers• Implementing QOS in network• Monitoring networks devices, services and QOS parameters• Configuring BGP, OSPF, Static routing and Policy Based Routing• Working with Cisco, MikroTik, Zyxel, Huawei, FiberHome and other network equipment• Troubleshooting network problemsThe following were some of my achievements:• Documenting the whole network topology and keeping it up to date• Implementing central Authentication, Authorization and Accounting for accessing network devices using Cisco ACS• Configuring SNMP on all network devices• hardening and securing network devices against unauthorized access and some attacks• Implementing Cacti graphing tool for graphing network resources• Configuring Syslog on all network devices and a Syslog server for central log management• Design and implementation of a web-based software for integrating and showing reports from Syslog, Cisco ACS and so on• Designing an IP and addressing plan and allocating IP addresses based on it Show less