Tag Archives

One Article

BGP Path Selection Algorithm

In this discussion we will dive into the BGP Path Selection Algorithm. There are 3 (Rejection, Selection, Tie-Break) rounds of BGP Path Selection which involve 18 different steps. The first round is Rejection where any route matching certain condition will be rejected. The second Round is Selection where BGP Best Path Compiler will choose a path matching certain conditions. The last round is Tie-Break where the BGP Best Path Compiler will make the final decision based on certain criteria. Rejection Round Any roues matching the following conditions will be rejected by default. The above behavior can be changed with explicit configuration. We will discuss each with an example in another tutorial. Selection Round In this steps one route will be preferred over another in case it fulfill the any of the below conditions which include certain Path Attributes and other constraints. You can further remember the steps with the following […]

 bgp-pa bgp-path-attribute bgp-path-selection path-attribute 
82 views

Download Cisco, Juniper, Huawaei, HP, Palo-Alto, F5, Checkpoint, Alcatell-Lucent, Erricson, Riverbed etc.

SUBSCRIBE

Please register using a valid email and mobile number to get full access of appliance download portal. If you are already registered, please enter your email and mobile number. A verification code will be sent to your email-id as well as to your WhatsApp number. To confirm subscription please click here.