Return-Path: william@bourbon.usc.edu Delivery-Date: Thu Oct 2 20:36:30 2008 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on merlot.usc.edu X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=3.2.3 Received: from bourbon.usc.edu (bourbon.usc.edu [128.125.9.75]) by merlot.usc.edu (8.14.1/8.14.1) with ESMTP id m933aUOB001246 for ; Thu, 2 Oct 2008 20:36:30 -0700 Received: from bourbon.usc.edu (localhost.localdomain [127.0.0.1]) by bourbon.usc.edu (8.14.2/8.14.1) with ESMTP id m933fRWh015353 for ; Thu, 2 Oct 2008 20:41:27 -0700 Message-Id: <200810030341.m933fRWh015353@bourbon.usc.edu> To: cs551@merlot.usc.edu Subject: Re: IGP vs I-BGP Date: Thu, 02 Oct 2008 20:41:27 -0700 From: Bill Cheng Someone wrote: > Is IGP the same thing as I-BGP, or are they slightly different? IGP is a category of protocols for routing within an AS. OSPF is an IGP and RIP is an IGP. I-BGP is a protocol for border gateways to communicate with each other for forwardsing BGP protocol information within an AS. -- Bill Cheng // bill.cheng@usc.edu