Since 2012 I have been working in one of largest Internet Service Provider (ISP) in Bangladesh as core network engineer. In past those year of my journey I worked with various type of networking devices.
Routing and Switch Devices:
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Cisco, Juniper, MikroTik, Huawei, Allied Telesis, Maipu.
VPN Technologies:
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OpenVPN, GRE, MPLS , EoIP, IPIP, L2TP, PPTP, SSTP, IPSec.
Dynamic Routing Protocol:
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OSPF, BGP, ISIS, EIGRP, MPLS.
Other Technologices:
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DHCP, PPoE, RSTP, STP