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Do I need BGP?

Even though you are a network admin or telecom tech, if you are not dealing with something in daily basis, you might need icon_BGP.png assist or at least chasing technical information to achieve. BGP ( Border Gateway Protocol) is the one of them. There is great amount of information about BGP on Internet.


All necessary information to bring your BGP you can read in this article. If you have any questions, visit our support forum page to see any possible answer you are looking for. Let’s start with first topic “Do I need BGP?”

Answer is Yes or No.

Due to my job is related to WAN / Internet link maintenance, I deal with BGP issue all the time. Probably 40% of link doesn’t need BGP.

“Static route should be enough”

Well, they might have some basic reasons to keep BGP. But we don’t want to say that  BGP is useless and choosing it you do wrong. But we should look through different cases when BGP isn’t necessary.

When you don’t need “BGP”?

– Single ISP link (doesn’t matter high / low speed link)

– Two links to single ISP and one is master and other is shadow service

– Not ISP business

All other cases, you might need BGP configuration. Actually, some ISP requires BGP, when you have more than two links with them and announcing small IP block from same range of IP block you have.

What is the big deal whether having BGP or not?

Simply says “No big deals”.

However, you don’t want to waste your router resource for unnecessary processors. If your router is old, it might be serious consequences of it. You might want to check CPU processor for BGP on our device for few minutes. How the BGP processor is acting. ISP’s routing table is frequently changed and every change will reflect to their BGP speakers.

Make it simple.

For example, router does most of firewall function, but not really recommends enabling a lot function of firewall. Because it will use a lot of resource and it would affect main routing function. Make it simple and enable necessary function only, it makes you life easier.

Still you think you need BGP, or decide having BGP, go next article. Let’s see what ISP request and what you need to be prepared to accomplish BGP setup.