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BGP (Border Gateway Protocol): It's the protocol underlying the routing decisions on the internet, determining how data packets travel from one place to another across networks.
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VXLAN and EVPN:
- VXLAN (Virtual Extensible LAN): A network virtualization technology that allows large-scale isolated Layer 2 networks over a Layer 3 network, increasing scalability.
- EVPN (Ethernet VPN): Enhances VXLAN by providing advanced networking features such as improved scalability, segmentation, and traffic optimization.
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The FRRouting Project: An open-source project that implements routing protocols such as BGP, OSPF, and IS-IS. It's designed for modern routing needs, supporting Unix/Linux platforms.
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Zebra (Software): A core part of the FRRouting project, managing the routing tables of the underlying operating system. It provides an abstraction layer between the routing protocols and the actual packet forwarding mechanism.
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BGPD Service: A daemon from the FRRouting project responsible for implementing the BGP protocol. When active and configured, it manages BGP routing policies and paths.
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OSPFD Service: Another daemon from the FRRouting project, handling the OSPF (Open Shortest Path First) protocol. It's used for automatically managing IP routing within a single routing domain.
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IS-IS Routing Engine Service: Part of the FRRouting project, this service implements the IS-IS (Intermediate System to Intermediate System) protocol for routing within an organization, often used alongside BGP for large network infrastructures.