BestTechVideos: Category Symfony Videos

Scaling the Internet routing table with Locator/ID Separation Protocol (LISP)

scoundrel — Fri, 06 Jul 2007 13:38:18 GMT

Google Tech Talks
June 12, 2007

ABSTRACT

This talk introduces a routing protocol approach (Locator/ID Separation Protocol) to solving the scaling problem of the global Internet routing table.

The Problem:
At the October '06 IAB meeting in Amsterdam the highest priority takeaway was the need to devise a scalable routing and addressing system for the Internet. The key points were:

Main driving forces behind the rapid growth of the Internet's DFZ (default-free zone) are multihoming, traffic engineering, non-aggregatable address allocations, and business events such as mergers and acquisitions.
Moore's Law does not apply to building high-end routers as far as cost is concerned. Low-volume, customized silicon used in core routing is well off Moore's Law's cost curve. In short, there are concerns regarding the industry's ability to scale core routing systems in the face of growing RIB (routing information base) sizes.
So-called "locator/identifier overload" of the IP address semantics is one of the causes of the routing scalability problem.

About LISP:
LISP is a simple, incremental, network-based protocol to implement separation of the Internet address into Endpoint IDs and Routing Locators. This mechanism requires no changes to host stacks and no major changes to existing database infrastructures.

Symfony PHP Framework Admin Generator

scoundrel — Tue, 21 Nov 2006 11:22:19 GMT

This screencast shows the best PHP code generation engine for your backend interfaces in Symfony PHP framework.

Easy Ajax in Symfony PHP Framework

scoundrel — Tue, 21 Nov 2006 11:11:21 GMT

Symfony has Ajax helpers that make programming an elaborate interface a piece of cake. This tutorial will show you step-by-step how to create an Ajax-powered symfony application in minutes.