Alle afleveringen
70 afleveringen, van nieuw naar oud
-
N4N019: Howdy, Neighbor! And Other Routing Stuff
27 maart 2025 · 43 min
In today’s episode, we continue the discussion about routing and routing protocols by focusing on commonalities rather than differences among protocols such as OSPF, RIP, EIGRP, or BGP. We explain how, in general, routing protocols discover each other, communicate, maintain relationships, and exchange routing information. Next, we explore the topics of selecting best paths in... Read more » Lees meer
-
N4N018: RIB vs. FIB & Administrative Distance or Route Preference
20 maart 2025 · 52 min
Ready for more routing and routing protocols? Today we discuss the roles of the network operating system (NOS), routing protocols, the Routing Information Base (RIB), and the Forwarding Information Base (FIB). We also include the dynamics of routing protocols, the importance of hardware like TCAM for performance, and the concept of administrative distance or route... Read more » Lees meer
-
N4N017: Routing Fundamentals
13 maart 2025 · 50 min
On today’s N Is For Networking, we explore the fundamentals of routing, focusing on layer 3 of the OSI model. We explain the concepts of routers, routing tables, and routing protocols, and discuss why it’s important to have a firm grasp of these concepts before you tackle advanced topics such as VXLAN and EVPN. Today’s... Read more » Lees meer
-
N4N016: Routers Are Not Switches…Are They?
6 maart 2025 · 52 min
The line between switches and routers can get a little blurry. On today’s N Is For Networking, we try to clear things up. We start by defining what a router and switch are, and then provide some historical and technical context to better understand the differences. Then we discuss how modern switches have evolved to... Read more » Lees meer
-
N4N015: Spanning Tree Part 3 – Versions, States and Guards
27 februari 2025 · 42 min
We’re back with the third and last (for now) installment of our spanning tree series. Today’s episode includes an explanation of spanning tree versions, 802.1D, 802.1w, 802.1s, and their practical implications for network design. The discussion then turns to BPDU guard for preventing loops and ensuring rapid connectivity. Bonus material on why you should or... Read more » Lees meer
-
N4N014: Spanning Tree Part 2 – Root Bridge, Edge Port, Forwarding and Blocking
20 februari 2025 · 35 min
Welcome to part 2 of our spanning tree series. We start with a quick review and then discuss root bridges, root ports, designated ports, and forwarding and blocked ports. We explain the impact of topology changes on spanning tree and network performance, and discuss how topology changes and convergence events are communicated. Last but not... Read more » Lees meer
-
N4N013: Spanning Tree Part 1 – An Introduction and Broadcast Storms
13 februari 2025 · 53 min
Spanning tree is a topic so mysterious and complicated that common advice is just to disable it. In today’s episode, we start a mini-series on spanning tree, hoping to better explain what it is and what it does. We begin with basic spanning tree terminology and its role in preventing loops in an Ethernet network.... Read more » Lees meer
-
N4N012: Russ White On Why We Need Network Models
6 februari 2025 · 49 min
Why do we need network models such as OSI? Network architect and author Russ White joins Holly and Ethan to talk about how network models can help engineers ask intelligent questions and understand networking problems. And OSI isn’t your only option–Russ digs into the RINA model and how it compares to OSI (which we covered... Read more » Lees meer
-
N4N011: What’s the Difference Between LAG, MLAG, MC-LAG, and Stacking?
30 januari 2025 · 56 min
In today’s episode, we address listener Kieren’s question about the differences between LAG, MLAG, MC-LAG, and stacking. We tackle the nuances of Link Aggregation (LAG) and the Link Aggregation Control Protocol (LACP), and explain their roles in redundancy and bandwidth efficiency. We also discuss the complexities and differences among vendors and overall benefits of Multi-Chassis... Read more » Lees meer
-
N4N010: Why Was the Colon Chosen as a Delimiter in IPv6?
23 januari 2025 · 50 min
It’s history day on N Is For Networking! We learn about the development of IPv6 directly from Bob Hinden, one of the pioneers who made it happen. Bob discusses his journey from early work on ARPANET to his significant contributions to IPv6. We also cover the transition from IPv4, the challenges faced during IPv6’s creation,... Read more » Lees meer
-
N4N009: High-Speed Ethernet Lanes Explained
16 januari 2025 · 38 min
On today’s episode, we’re explaining high-speed Ethernet lanes at the request of listener Matthew. We cover lanes, channels, and their physical representation in networking – think actual cables. We explain both 40Gb and 100Gb technologies and compare them to Link Aggregation Control Protocol (LACP). We also have a discussion on standards and practical implications for... Read more » Lees meer
-
N4N008: What Is a Default Gateway?
9 januari 2025 · 34 min
Today’s topic is the default gateway, essential for routing traffic between networks. We explain its purpose, configuration, and the consequences of incorrect settings. Using home networks as an example, Ethan and Holly illustrate how default gateways enable devices to communicate with external networks. The discussion also covers routing tables, subnet masks, and the differences between... Read more » Lees meer
-
N4N007: Performance vs. Cost
13 december 2024 · 26 min
When building your network and buying equipment, is performance or cost more important? On today’s episode, we discuss the balance between performance and cost in selecting networking equipment. We also cover other considerations, including why you should understand client and network needs, the fluid nature of pricing, and the necessity of creative problem-solving. Bonus material: ... Read more » Lees meer
-
N4N006: Packet Analysis Basics
12 december 2024 · 34 min
Packet analysis can be your friend for troubleshooting network problems. In this episode, hosts Ethan Banks and Holly Metlitzky explore packet analysis, They discuss tools such as Wireshark and Tcpdump, explain their functionalities, and talk about the importance of filtering data for effective analysis. Listeners are encouraged to engage with Wireshark and other tools themselves.... Read more » Lees meer
-
N4N005: The Sort-of-Useful OSI Model
5 december 2024 · 32 min
Network engineers should be familiar with the Open Systems Interconnection (OSI) model, a framework for understanding network communications. On today’s show, Ethan and Holly delve into each of the model’s seven layers to discuss their functions, associated protocols, and practical implications for modern networking. They also talk about how the OSI model is, in fact,... Read more » Lees meer
-
N4N004: Essential Topics in Networking: Ethernet, NAT, and More
21 november 2024 · 43 min
What are the most essential topics to understand for a new networkers? Ethan Banks and Holly Metlitzky address a listener’s question about foundational topics, covering what a network is, the differences between packet-switched and circuit-switched networks, and the nature of the internet as a “network of networks.” They discuss the importance of Internet Protocol (IP),... Read more » Lees meer
-
N4N003: What’s a VLAN?
14 november 2024 · 31 min
Today we explore Virtual Local Area Networks (VLANs). This topic was prompted by a question from college student Douglas. We’ll explain the fundamental concepts of VLANs, such as their role in segmenting and managing network traffic, and the technical details for implementation. We’ll also address key topics including VLAN tags, access and trunk ports, and... Read more » Lees meer
-
N4N002: Bandwidth and Latency Explained
7 november 2024 · 25 min
In this episode of N Is For Networking, co-hosts Ethan Banks and Holly Metlitzky take a question from college student Douglas that turns into a ride on the networking highway as they navigate the lanes of bandwidth and latency. Ethan and Holly define the concepts of bandwidth and latency and discuss current data transfer protocols... Read more » Lees meer
-
N4N001: Frames and Packets: What’s the Difference?
31 oktober 2024 · 17 min
Frames and packets: how are they different and why is it important to know those differences? On this first episode of N Is For Networking, join co-hosts Holly Metlitzky and Ethan Banks to learn the fundamentals about frames and packets, plus some bonus material on layers and addresses. N Is For Networking is the newest... Read more » Lees meer
-
N4N000: Announcing N is For Networking – A New Podcast for the New Network Engineer
7 oktober 2024 · 19 min
Welcome to N Is For Networking, the newest podcast on the Packet Pushers network, where we explain the jargon, acronyms, and concepts of the networking industry in plain language. Your hosts are Holly Metlitzky, an industrial engineer and now a network sales engineer; and Ethan Banks, a veteran network engineer. Together, they’ll educate and help... Read more » Lees meer