Scalability Issues with Internal BGP
Before exploring the scalability issues of internal BGP, you should make certain that you have valid reasons for even implementing the BGP routing protocol in the first place. Your router's hardware capacity and the bandwidth between the ISP's AS and your AS is a key consideration for implementing BGP. Because of the system overhead involved in handling Internet routing updates, you should make sure that the prospective BGP router has sufficient CPU and memory resources. In addition, adequate bandwidth must be in place between your AS and the ISP's AS to handle the traffic loads created by BGP. Without ample bandwidth, the link between the ASs may get clogged up, and the subsequent routing updates may produce ...
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