Border Gateway Protocol is first and foremost a policy control tool. Unlike traditional routing protocols that are used to exchange routing information within an autonomous system, BGP is traditionally used to exchange routing information between routing domains or autonomous systems. However, BGP can also be used to exchange routing information within a single routing domain. The TSHOOT certification exam objective that is covered in this chapter is:
- Troubleshoot eBGP
While it is not possible to delve into all possible BGP problem scenarios, this chapter discusses some of the most common problem scenarios when using BGP. This chapter begins with an overview of the BGP routing and then concludes with some common problem scenarios that pertain to BGP. This chapter is divided in the following sections: