BGP Unnumbered uses IPv6 Link-Local addresses for peering, eliminating unique IP assignments on transit links. This simplifies network design. See how to configure this modern approach on Cisco NX-OS and Juniper, enabling one session to carry both IPv4 and IPv6 routes.

IPv6’s SLAAC lets devices self-configure without DHCP. Hosts send RS, receive RAs (with prefixes/flags), and build their GUA using a unique Interface ID (EUI-64/Privacy). A quick DAD check confirms uniqueness. It’s simple and stateless.

IPv6 addresses come in flavors. Global Unicast, Link-Local, Unique Local, Multicast, Anycast, Loopback, and Unspecified. Each is identified by its binary prefix and hex pattern, making it easy to spot scope, purpose, and reachability at a glance.

Anycast RP with MSDP brings true redundancy and load sharing to multicast networks. By synchronizing active sources across multiple RPs, it ensures seamless failover and scalability—making multicast delivery resilient for IPTV, trading, and real-time applications.

Multicast‑routing with PIM (Sparse, Dense, SSM, Bidirectional) lets network architects deliver ultra‑low‑latency streams and market‑data feeds. Choose the right mode like SPT via SSM for HFT, shared trees with RP for global video to balance latency, scalability, and security.

IP multicast is the unsung hero of efficient one-to-many communication. Instead of flooding or duplicating streams, multicast delivers content only where it’s needed. This deep dive covers addressing, IGMP, PIM routing, configs, and troubleshooting to make multicast click in real networks.

IS-IS TLVs define how routing information is shared and covering IPv4, IPv6, traffic engineering, and more. This extensible model makes IS-IS a preferred protocol for modern networks. Dive deeper with our Mastering IS-IS series.

BGP route types are the language of VXLAN EVPN. They carry MAC, IP, and reachability info between VTEPs. Understanding them is key for building and troubleshooting EVPN fabrics, whether for multi-homing, L2, L3, or BUM traffic.

Domain Name System (DNS), the unsung hero.

As a network engineer or architect, you're used to thinking in terms of packets, ports, topologies, and protocols. Your world is often defined by the intricate dance of data, the robust architecture of hardware, and the precise syntax of configurations. But what if a key to elevating your

Give your network automation a brain boost! 🧠 LangChain + Netmiko = an agent that understands natural language requests for device data.

For years, we’ve built and maintained networks – complex systems of boxes and protocols ensuring packets flow reliably. But in today's world of distributed applications, multi-cloud deployments, and relentless digital transformation, that’s no longer enough. The network is the platform; it’s the critical path for business

In the world of computer networking, devices must resolve logical addresses to physical ones before they can communicate on a local segment. While we often think in terms of IP addresses (Layer 3), actual data transmission on Ethernet networks depends on MAC addresses (Layer 2). That’s where Address Resolution

When you type a website address into your browser, a complex series of events unfolds behind the scenes, involving multiple layers of network protocols. This "packet flow" ensures that the website's content reaches your screen. Visiting https://example.com (Secure Connection with TCP/TLS) Visiting a