Questions tagged [bgp]

BGP (Border Gateway Protocol) is one of the core routing protocols of the internet.

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Best way to improve resilience?

One of the major projects I have lined up for 2010 is attempting to mitigate some of the Single Point of Failures (SPOFs) in a network I currently manage. We currently have a single datacentre rack ...
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Practical Anycast

I've read How can I send visitors to the closest server using DNS? post, but there's still some thing, on a practical level that I don't understand. Say I have two servers. One in NY another in Paris....
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BGP Multihomed/Multi-location best practice

We're in the process of designing a new iteration of our network where we improve resilliency by adding a second datacentre. We'll be adding a second datacentre, with an identical configuration of ...
Tom O'Connor's user avatar
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How are IP addresses actually assigned?

I'm having a hard time understanding how a governing body assigns IP addresses, companies use BGP to advertise those IPs, and how the internet works. Then, where the hell does DNS come in? Can ...
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Amazon CloudFront and EC2: Global Load Balancing

We have an app that is going to store and serve up a decent amount of data in S3 to a global audience where latency should be minimized. So, we've been doing tests with Amazon CloudFront and have seen ...
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DNS Round-robin failover and load balancing

Having read all of the questions and answers (1 2 3 and so on) on here relating to DNS load balancing, and Round-robin DNS, there's still a number of unanswered questions.. Large companies, and I'm ...
Tom O'Connor's user avatar
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Solving an asymetric HA Firewall/router

I have an old Linux HA firewall/router setup that never quite worked. As it was never quite put into true production (just testing and demo's), I always had to have one firewall shutdown to make it ...
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Peering with an internet exchange

Our organization is planning to peer with the local internet exchange, we are planning to obtain an AS number to allow us to do this. However I was unsure if we also need our own IP address space to ...
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Influencing outbound routes on multi homed BGP setup

I have a multi-homed network setup. I'm using a Cisco 7200 to do BGP advertising to both provider A and B. For each provider, I have a separate /24 that I'm using. I am AS prepending to influence ...
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Looking Glass script

Can you recommend good and secure looking glass scripts with traceroute,ping and bgp? I want to install it to my website, and connect to Cisco routers.
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Simple Vyatta configuration / BGP routes not injecting into routing table

I have a exceptionally simple setup I'm playing with however I'm banging my head against the wall as to why it's not working. Right now I have two Vyatta routers (R1, R2) connected locally. Both are ...
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