Patent ID: 9154403
Filing Date: 2015-10-06
Classification: H04L

Abstract:
1. A method comprising: obtaining, at a first border router arrangement associated with an enterprise, a plurality of packets included in a flow to be forwarded to at least a second border router arrangement, wherein the first border router arrangement and the second border router arrangement are in communication through at least a first set of links and a second set of links; forwarding the plurality of packets included in the flow onto the at least first set of links to the second border arrangement; obtaining, after forwarding the plurality of packets, at least a first packet included in the flow; determining whether to replicate the at least first packet included in the flow; replicating, at the first border router arrangement, the at least first packet included in the flow to create a least one duplicate of the at least first packet included in the flow when it is determined that the at least first packet included in the flow is to be replicated; forwarding the at least first packet included in the flow onto the at least first set of links to the second border arrangement; forwarding the at least one duplicate onto the at least second set of links to the second border arrangement; obtaining information relating to the at least first packet and the at least first set of links; obtaining information relating to the at least one duplicate and the at least second set of links; determining whether to forward the flow on the at least first set of links using the information relating to the at least first packet and the at least first set of links as well as the information relating to the at least one duplicate and the at least second set of links; selecting the at least first set of links for use in forwarding the flow when it is determined that the flow is to be forwarded on the at least first set of links; and selecting the at least second set of links for use in forwarding the flow when it is determined that the flow is not to be forwarded on the at least first set of links.