Methods and apparatus for enabling a provider to perform a tracing procedure to determine the existence forwarding problems within its network are disclosed. According to one aspect of the present invention, a method for detecting a forwarding problem within an autonomous system includes initiating a...http://www.google.fr/patents/US7280486?utm_source=gb-gplus-shareBrevet US7280486 - Detection of forwarding problems for external prefixes
Detection of forwarding problems for external prefixes
