Patent ID: 9112776
Filing Date: 2015-08-18
Classification: H04L,H04Q

Abstract:
1. A method comprising: determining, by a first node, a failure of at least one of a second node or a link, the second node and the link being located downstream, along a first route, from the first node; determining, by the first node and based on the failure of the at least one of the second node or the link, that the first node does not store information regarding a second route; and transmitting, by the first node and based on determining that the first node does not store the information regarding the second route, a message to a third node, the third node being located upstream, along the first route, from the first node, the third node being different than the second node, and the message causing the third node to use the second route to forward packets intended for the first route, the second route being different than the first route, and the second route being a route that is modified based on administrative constraints, the administrative constraints including: bandwidth information, and a quantity of hops information.