Patent ID: 11902133
Assignee: JUNIPER NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A network device, comprising:
one or more memories; and
one or more processors to:
receive, from another network device, a request message that requests a first round trip time (RTT) value for a path between the network device and a particular network device,
wherein the network device, the other network device, and the particular network device are included in a group of network devices that are part of a network and that are configured with a protocol for measuring network performance,
wherein the protocol is a two-way active measurement protocol (TWAMP),
wherein the protocol includes a relay mechanism and the relay mechanism causes the group of network devices to perform, during a test session, one or more test session tasks based on a set of rules associated with the relay mechanism,
wherein the other network device is a first endpoint in the network, and
wherein the particular network device is a second endpoint in the network;

cause the test session to be established and to be used for measuring the network performance;
provide one or more additional request messages to one or more neighboring network devices, included in the group of network devices, to cause the one or more neighboring network devices to provide one or more additional response messages that include a group of RTT values between the one or more neighboring network devices and the particular network device;
determine the first RTT value based on the group of RTT values that have been provided by the one or more neighboring network devices,
wherein the group of RTT values are provided by the one more neighboring network devices based on the one or more neighboring network devices performing the one or more test session tasks during the test session; and

provide, to the other network device, a response message that includes the first RTT value to cause the other network device to use the first RTT value as part of determining overall RTT values and to identify a preferred next-hop to one of the one or more neighboring network devices based on the overall RTT values.