Excessive BGP AS Path Prepending is a Self-Inflicted Vulnerability

In the Border Gateway Protocol (BGP), prepending is a technique used to de-prioritize a route by artificially increasing the length of the AS_PATH attribute by repeating an autonomous system number (ASN). Route selection in BGP prefers the shorter AS path length, assuming all other criterion are equal. Therefore, a prepended route should be selected less often.

Read the blog post over at oracle:  Excessive BGP AS Path Prepending is a Self-Inflicted Vulnerability

Comments