Zscaler, Inc.
Adaptive probing to discover a protocol for network tracing

Abstract:

Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods provide adaptive probing of a service path in a network, wherein the service path includes a plurality of legs. The systems and methods include, for one or more legs of the plurality of legs, sending a number of probes using one of a plurality of protocols; responsive to receiving a response from the number of probes, determining the one of the plurality of protocols is successful and storing this protocol the one or more legs; and, responsive to failure to receive the response, sending a number of probes using another one of the plurality of protocols and continuing until a successful protocol is determined or all of the plurality of protocols fail.