bgp perspective

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How to use IP and BGP to troubleshoot Internet connectivity

In most cases, you probably aren't interested in the path that network traffic takes through the Internet. You will be interested, however, when connection problems bring a call from the CFO, who can’t communicate with a partner company's Web site that he has used every day for the last year....

Tags: BGP, BGP perspective, David Davis CCIE, MCSE+I, SCSA, Internet, IP, IP-perspective

Technical articles 2004-12-17

Additional Resources

CNPC-BGP Lowers Total Cost of Ownership by Simplifying Infrastructure Management

CNPC-BGP Inc. BGP is one of the world's leading onshore geophysical service providers. The company offers petroleum-surveying services with a focus on geophysical data acquisition, processing, interpretation, equipment manufacturing, and software development. Increasing competition has put pressure on BGP to improve efficiency and lower costs. The company has expanded rapidly...

Tags: Infrastructure Management, Oracle Corp., TCO, CNPC-BGP, BGP, Networking

Case studies 2007-05-01

Five things you should know about Cisco IOS BGP configuration

Nice articleHi,A nice and concise article for starters. If someone takes a printout of this a admin can easily configure BGP between routers at least the basic configs. All in all helps us all to brush up the basics once in a while.Thanks a lot.Thanks!Hi Avradutta,Thanks for the comments! I...

Tags: avradutta@..., Cisco Systems Inc., BGP, Cisco IOS

Discussion threads 2007-07-13

BGP Over a 64k circuit

Can any one tell me the advantages or disadvantages of using BGP on a router which is at the access layer. servicing four clients, with no other route out than this one 64k connection into the core network?

Tags: simon.schofield@..., BGP

Discussion threads 2007-04-05

BGP Routing Changes: Merging Views From Two ISPs

Large Internet Service Providers ISPs experience millions of Border Gateway Protocol BGP routing changes a day. This paper discusses the impact of BGP routing changes on the flow of traffic, summarizing and reconciling the results from six measurement studies of the Sprint and AT&T backbone networks. The paper offers a...

Tags: Internet Service Provider, BGP, Internet Service Providers (ISPs), Business Services, Networking, Internet

White papers 2005-10-01

Build effective BGP policies with Cisco IOS

This sample chapter, taken from Cisco Press' BGP Design and Implementation, shows you how to use Cisco IOS to build complex and effective BGP policies. The Border Gateway Protocol BGP is system routing protocol used to exchange routing information for the Internet and is the protocol Internet...

Tags: Chapter, Cisco IOS, Cisco IOS Software, Cisco Systems Inc., Border Gateway Protocol Protocol, BGP, Networking

Book chapters 2005-07-21

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...

Tags: Oracle Corp., Grid Computing, CNPC BGP, BGP, Networking

Case studies 2008-05-01

BGP Routing Scalability: Reflectors Vs. Route Servers

Autonomous systems need to be connected using BGP servers. To reduce the complexity of connecting these systems together, researchers have suggested that route servers or routing databases be used. While both route reflectors and routing databases offer significant scalability advantages over standard full mesh BGP, they also introduce problems in...

Tags: Database, Scalability, Server, University Of Alberta, BGP, Networking

White papers 2008-01-01

Technical White Paper for BGP/VPN Fast Convergence

As the multi-service bearer network, the IP/MPLS VPN technology has become the basic technology on the IP/MPLS network. On one MPLS VPN network, the service route is carried by the BGP technology. When the link or node is faulty on the network, not only the public network route needs to...

Tags: VPN, Network, Convergence, BGP, Networking

White papers 2007-12-10

BGP Nonstop Forwarding (NSF) Awareness

Nonstop Forwarding NSF awareness allows a router to assist NSF-capable neighbors to continue forwarding packets during a Stateful Switchover SSO operation. The BGP Nonstop Forwarding Awareness feature allows an NSF-aware router that is running BGP to forward packets along routes that are already known for a router that is performing...

Tags: National Science Foundation, Router, BGP Nonstop Forwarding Awareness Feature, BGP, Routers & Switches, Network Technology, Networking

White papers 2007-11-18

BGP Convergence in Virtual Private Networks

Multi-Protocol Label Switching MPLS Virtual Private Networks VPNs have had significant and growing commercial deployments. This paper presents the first systematic study of BGP convergence in MPLS VPNs using data collected from a large tier-1 ISP. The paper combines several data sources to produce a methodology to accurately estimate routing...

Tags: Convergence, BGP, VPNs, Networking, Network Security, Telecommunications

White papers 2006-10-27

How to use IP and BGP to troubleshoot Internet connectivity

In most cases, you probably aren't interested in the path that network traffic takes through the Internet. You will be interested, however, when connection problems bring a call from the CFO, who can’t communicate with a partner company's Web site that he has used every day for the last year....

Tags: BGP, David Davis CCIE, MCSE+I, SCSA, Internet, IP

Technical articles 2003-04-01

Origin of Route Explosion in Virtual Private Networks

Enterprises often have sites that are spread in distant locations. These sites need to interconnect with the same level of privacy as in a local-area network. Virtual Private Networks VPNs were introduced to serve this need. A common VPN technology uses MultiProtocol extensions for the Border Gateway Protocol (MP-BGP) and...

Tags: MPLS, BGP, VPNs, Networking, Network Security, Telecommunications, Security

White papers 2007-12-13

Impact of BGP Dynamics on Router CPU Utilization

Router CPU load is a significant concern in the operation of an ISP. Long periods of high CPU load can increase route convergence times, and has some correlation with router instability. The BGP routing protocol has a potential for significantly impacting CPU load due to the nature of the protocol....

Tags: Router, Sprint Communications, CPU, BGP Routing Protocol, BGP, Routers & Switches, Internet Service Providers (ISPs), Network Technology, Networking, Processors, Internet, Semiconductors, Hardware, Components

White papers

Build Your Skills: Use IP and BGP to troubleshoot Internet connectivity

You may not be too interested in the path that network traffic takes through the Internet—that is, until connection problems bring a call from the CFO, who can’t communicate with a partner company's Web site he's used every day for the last year. The CFO needs to access the site...

Tags: BGP, David Davis CCIE, MCSE+I, SCSA, Internet

Technical articles 2003-06-18

Multihoming with a router cisco 1812 without BGP

I have two ISP providers and right now are connected thru a 2650 router using static routes and NAT. I want to reemplace this router with a cisco 1812 and be able to do load balancing without using BGP. I also have webservers, citrix, and mailservers that need to be...

Tags: router, XCHAPA, multihoming, without bgp, cisco, networking, isp, nat, Cisco Systems Inc., BGP

Discussion threads 2007-02-07

BGP: Yet another Internet time bomb

BGP is the core routing protocol of the Internet and yet it appears that BGP's trusting nature allows attackers to intercept Internet traffic. The problem has been known for a long time so why hasn't it been fixed? Michael Kassner answers that and points out a new twist. by Michael...

Tags: Neighbor, Internet, Router, Border Gateway Protocol Neighbor Concept, Autonomous System Numbers, BGP, Networking, Michael Kassner

Blog posts 2008-09-14

Build effective BGP policies with Cisco IOS

The Border Gateway Protocol BGP is system routing protocol used to exchange routing information for the Internet and is the protocol Internet service providers ISP use to exchange customer and ISP routes. The BGP protocol provides a list of attributes through which you can set policies. Cisco IOS software expands...

Tags: accounting, advertisement, aggregation, BGP, Cisco IOS, Cisco IOS Software, Cisco Systems Inc., integration, Internet, Internet service, Internet Service Provider, propagation, QoS, routing protocol, service provider, software, technique, tool

Download resources 2005-07-21

Site-to-Site Load Distribution Using IGP and BGP

Distributed data centers provide business continuance, disaster recovery, and load sharing solutions between multiple data centers. Organizations have different requirements that must be met through a business continuance and disaster recovery solution. Some organizations use DNS for managing business continuance and load sharing between two data centers. However, for some...

Tags: Data Center, BGP, Data Centers, Disaster Recovery, Storage, Hardware, Data Management

White papers 2004-03-01

BGP - Configuring BGP on Cisco Routers v3.2

View Available Dates and LocationsIn this comprehensive 5-day Authorized Cisco course, you will gain an in-depth knowledge of BGP, the routing protocol that is one of the underlying foundations of the Internet. Explore the theory of BGP, advanced configuration of BGP on Cisco IOS routers, and detailed...

Tags: Cisco Router, Router, Cisco Systems Inc., BGP, Networking

Training 2008-01-01