(Border Gateway Protocol) The routing protocol that is used to span autonomous systems on the Internet. It is a robust, sophisticated and scalable protocol that was developed by the Internet Engineering Task Force (IETF). BGP4 supports the CIDR addressing scheme, which increased the number of available IP addresses on the Internet. A path vector protocol, BGP was designed to supersede EGP, the original exterior gateway protocol. See autonomous system, CIDR and routing protocol.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- A Survey of BGP Security Issues and Solutions
- As the Internet's de facto interdomain routing protocol, the Border Gateway Protocol BGP is the glue that holds the disparate parts of the Internet together. A major limitation of BGP is its failure to adequately address security. Recent high-profile outages and security analyses clearly indicate that the Internet routing infrastructure...
- White papers 2009-10-03
- Cloudy day: Google, Gmail sucking wind or down; Packets lost in key cities
- Cloudy day: Google, Gmail sucking wind or down; Packets lost in key citiesRE: Cloudy day: Google, Gmail sucking wind or down; Packets lost in key citiesI can't function like this; I need Google! Thanks for reporting this news, it's nice to know it's not me, I guess.So lets see.....No downtime...
- Discussion threads 2009-05-14
- Bad, bad, cybercrime-friendly ISPs!
- Bad, bad, cybercrime-friendly ISPs!Why easy obvioussolution are never used.Cut the crooked ISPs from the net until they have cleaned they act. but since they are clearly criminal in nature a instant life time ban will doif an ISP host a malicious website/file and do not remove it right away after...
- Discussion threads 2009-03-04
- Overcoming ISP Network Challenges
- Organizations continue to battle problems related to delivering high-performing, continuous uptime and high-availability for applications such as VoIP, Outlook Web Access, VPN, Web Portals, and others, putting increased stress upon ISP links. An affordable approach to address these issues is the use of multi-homed connections to aggregate multiple low-cost ISP...
- White papers 2009-02-10
- End-to-End QoS Over Internet
- The problem of end-to-end Quality of Service QoS over internet can be split into two parts: The first part is to develop framework for information exchange, signaling, path selection and setup spanning across multiple Autonomous Systems ASes. The second part is to find an optimal inter-domain path based on specific...
- White papers 2009-01-12
- Network Considerations for a Network Which Does Not Support 4-Octet AS
- This paper will assume that an 'OLD' BGP speaker is supporting only a 2-octet AS number, and that that a BGP speaker that supports the new 4-octet AS number is a 'NEW' BGP speaker. RFC4893 (BGP Support for Four-octet AS Number Space) describes the compatibility between OLD and NEW BGP...
- White papers 2009-01-01
- Avoiding Instability During Graceful Shutdown of Multiple OSPF Routers
- Many recent router architectures decouple the routing engine from the forwarding engine, allowing packet forwarding to continue even when the routing process is not active. This opens up the possibility of using the forwarding capability of a router even when its routing process is brought down for software upgrade or...
- White papers 2009-01-01
- Design and Implementation of a Routing Control Platform
- The routers in an Autonomous System AS must distribute the information they learn about how to reach external destinations. Unfortunately, today's internal Border Gateway Protocol iBGP architectures have serious problems: a "Full mesh" iBGP configuration does not scale to large networks and "Route reflection" can introduce problems such as protocol...
- White papers 2009-01-01
- A Framework for Measuring and Predicting the Impact of Routing Changes
- Routing dynamics heavily influence Internet data plane performance. Existing studies only narrowly focused on a few destinations and did not consider the predictability of the impact of routing changes on performance metrics such as reachability. This paper proposes an efficient framework to capture coarse-grained but important performance degradation as a...
- White papers 2009-01-01
- CIERS1 - CCIE 360 R&S Prep Boot Camp 1
- View Available Dates and LocationsThis intensive Boot Camp-style course is designed to help the CCIE Routing & Switching candidate determine exactly where they are in their process of preparing for the CCIE R&S practical exam and to fill technology gaps through lecture and labs....
- Training 2008-11-01
- CIERS2 - CCIE 360 R&S Prep Boot Camp 2
- View Available Dates and LocationsThis Boot Camp-style class is the sequel to CIERS1 and is designed to provide practice in a timed setting for completing multiple issue spotting and analysis with assessed labs that are equivalent in difficulty to the actual CCIE practical lab....
- Training 2008-11-01
- Who’s Dumber: Bad Guys … Or Good Guys?
- In the old cowboy movies, the black hats were villains that created mayhem, until the white hats came along and ended their reigns of fear. Now, we have the spectacle of good guys seemingly educating the bad guys on how to exploit flaws or processes of the Internet, that...
- Blog posts 2008-08-27
- CNPC BGP Reduces Costs, Streamlines System Maintenance With Grid Computing Solution
- CNPC BGP Inc. BGP is one of the world's leading onshore geophysical service providers. BGP's various business applications are accessed via an online portal environment. The company wanted to simplify system management and reduce support costs through automation to reduce staff workload and increase efficiency. As BGP was experiencing rapid...
- Case studies 2008-05-01
- Vector Routing
- This paper provides an understanding of XRoads Networks' patent-pending Vector Routing technology that is built into its XRoads Edge product line. Vector Routing is designed to provide two fundamental services, load balancing network traffic across many paths and ensuring redundancy in the case that one or several of those paths...
- White papers 2008-03-01
- Pakistan+on+the+YouTube+black+hole%3A+Never+mind
- Pakistan+on+the+YouTube+black+hole%3A+Never+mindWhen will people live and let live?If these Pakistanis are really sorry, they should cut a check for their mess up, for all those folk's time out there. If they are not that sorry, fine them or put them in isolation for awhile.Soooo...So essentially what you're saying is Pakistan is...
- Discussion threads 2008-02-26
- YouTube shut down reveals some serious net security weaknesses
- YouTube shut down reveals some serious net security weaknessesBGP was implemented...to decentralize the Internet and make it more autonomous. I guess there was a few things they missed.One BGP router shouldn't be able to poison that much of the Internet. There is definitely going to have to be some...
- Discussion threads 2008-02-25
- YouTube shut down reveals some serious net security weaknesses
- It isn't often that the world of political repression interferes with our ability to watch home videos of cat tricks, but in a bizarre turn of events that's what happened over the weekend. Google-owned YouTube is a favorite target not only of copyright holders, who complain the...
- Blog posts 2008-02-25
- Pakistan blocks YouTube over cartoons
- Pakistan blocks YouTube over cartoonsPeople will stop using the internet?Yeah. Sure. That's what'll happen.Probably best if he's right, though - the internet could do with a few less homicidal maniacs.They're not even particularly good cartoons, and neither are they all that clever...Self-control, people! Murdering random innocent people because someone drew...
- Discussion threads 2008-02-24
- Pakistan+removed+from+the+Internet
- Pakistan+removed+from+the+InternetThis has nothing to do with DNSThis has nothing to do with DNS. This is happening at a MUCH lower layer. DNS is name resolution for applications like web browsers and mail servers. Routing tables determine where the IPs are routed.The routes are being hijacked by poisoned...
- Discussion threads 2008-02-24
- Pakistan takes out YouTube
- Like I said in a recent post, the Internet is a series of tubes. Sometimes that helps route around malicious legislation and regulators, sometimes it causes big problems. Like today at 2 PM eastern when someone in Pakistan announced a more specific BGP route announcement for the block...
- Blog posts 2008-02-24
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