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BGP & Internet Routing

How the internet routes traffic between networks. BGP fundamentals, ASNs, peering, transit, route filtering, and RPKI security.

Advanced 15 مقالات
1

What Is BGP?

How BGP routes traffic between autonomous systems to make the internet work.

6 د قراءة
2

ASN Numbers Explained

How Autonomous System Numbers are allocated and used in internet routing.

4 د قراءة
3

Internet Peering & Transit

How ISPs and networks exchange traffic through peering agreements and transit providers.

5 د قراءة
4

BGP Route Filtering & Prefix Lists

Learn how BGP route filtering prevents route leaks and hijacks using prefix lists, AS-path filters, and IRR-based filtering.

11 د قراءة
5

RPKI: Securing BGP with Route Origin Validation

How Resource Public Key Infrastructure (RPKI) prevents BGP hijacking by cryptographically validating which ASes are authorized to originate prefixes.

10 د قراءة
6

Looking Glass & BGP Diagnostic Tools

Learn to use BGP looking glass servers, route collectors, and diagnostic tools to troubleshoot routing issues and verify prefix announcements.

9 د قراءة
7

BGP Communities: Signaling Between Networks

Learn how BGP communities tag routes with metadata to signal routing policy between autonomous systems, with practical examples.

10 د قراءة
8

Internet Exchange Points (IXPs) Explained

Understand how Internet Exchange Points work, why they reduce latency and transit costs, and how networks peer at IXPs.

9 د قراءة
9

BGP Hijacking: Detection and Prevention

Learn how BGP hijacking works, real-world incidents, and the layered defense strategy combining RPKI, IRR filtering, and monitoring.

11 د قراءة
10

BGP Session Troubleshooting Guide

A systematic approach to diagnosing and fixing BGP session problems, from neighbor establishment failures to route propagation issues.

10 د قراءة
11

AS Path Prepending: Traffic Engineering with BGP

Learn how AS path prepending works for inbound traffic engineering, its limitations, and when to use alternative approaches.

9 د قراءة
12

BGP Multipath and ECMP Load Balancing

Learn how BGP multipath and Equal-Cost Multi-Path (ECMP) distribute traffic across multiple links for better bandwidth utilization and redundancy.

9 د قراءة
13

Creating Route Origin Authorizations (ROAs)

A practical guide to creating RPKI ROAs through the five Regional Internet Registries, with best practices for maxLength and monitoring.

9 د قراءة
14

BGP FlowSpec: DDoS Mitigation at the Routing Layer

Learn how BGP FlowSpec distributes traffic filtering rules across your network to mitigate DDoS attacks at line rate without dedicated scrubbing centers.

10 د قراءة
15

BGP Large Communities (RFC 8092)

Understand BGP Large Communities -- the modern replacement for standard communities that supports 4-byte ASNs and richer signaling.

8 د قراءة