Patent ID: 8880724
Filing Date: 2014-11-04
Classification: H04L

Abstract:
1. A method, comprising: detecting an event on a current path in a network from a local autonomous system to a destination address prefix of a remote autonomous system; determining a destination address within the destination address prefix that corresponds to an active trace target within the remote autonomous system, based upon traffic from the remote autonomous system, wherein the destination address is different from the destination address prefix; performing a route trace along the current path from the local autonomous system to the active trace target within the remote autonomous system and one or more additional route traces along a selection of alternate paths in the network from the local autonomous system to the active trace target within the remote autonomous system, in response to the event, wherein each route trace for the current path and the alternate paths is originated via respective egress nodes of the local autonomous system; obtaining, by the route trace and the one or more additional route traces, per-hop measurements along the respective traced paths; and storing the per-hop measurements.