External Routing Information

protocol

OSPF-2 overview

The general operation of OSPF, version 2.

OSPF packets

The OSPF packets that can be sent.

LSA packet

The format of an OSPF link state advertisement.

BGP packets

As described in RFC1771.

tutorials

Tutorials on OSPF and BGP start us off.

OSPF Tutorial

Step by step explanation of OSPF, by Kathy Menefee.

OSPF Tutorial

An example of OSPF used within Camp Swampy.

BGP Tutorial

A series of slides from a NANOG meeting explaining BGP.

screen snaps

AS screen snap at AS2885

This snapshot shows routing information in terms of autonomous systems, captured at AS2885, which is NAP-MAEEAST.

Flapping screen snap at AS2885

This snapshot shows route flapping information (announcements and withdrawals), captured at AS2885.

tools

IPMA tools

The IPMA (Internet Performance Measurement and Analysis Project) from the University of Michigan EECS Department, has a number of tools, mostly based on Java, for gaining information about the Internet, especially routing information.

Internet Traffic Report

This tool reports "the flow of data around the world".

The Internet Weather Report

This page accesses data about ISP performance.

Looking Glass

This tools allows you to login to various BGP servers and see their routing information.

Autonomous System Number to Name table

This table gives you the name of an Autonomous System from its Number.