US 2024/0406086 A1 · TELEMETRY DATA OPTIMIZATION FOR PATH TRACING AND DELAY MEASUREMENT

Abstract

Techniques for optimizing technologies related to network path tracing and network delay measurements are described herein. Some of the techniques may include using an IPv6 header option and/or segment identifier field of a segment list or a TLV of a segment routing header as a telemetry data carrier. The techniques may also include using an SRv6 micro-segment (uSID) instruction to indicate to a node of a network that the node is to perform one or more path tracing actions and encapsulating the packet and forward. Additionally, the techniques may include using short interface identifiers corresponding to node interfaces to trace a packet path through a network. Further, the techniques may include using short timestamps to determine delay measurements associated with sending a packet through a network. In various examples, the techniques described above and herein may be used with each other to optimize network path tracing and delay measurement techniques.

Claims20

Dependent claims

A method comprising:

receiving, at a first node of a network, a packet that is to be sent to at least a second node of the network, the packet comprising:
a first indication of a specific type of telemetry data that the first node is to append to the packet;
and
a second indication of a first location within a header of the packet where the first node is to append the specific type of the telemetry data;
determining, by the first node and based at least in part on the first indication, first telemetry data of the specific type that is associated with the first node;
appending, by the first node and based at least in part on the second indication, the first telemetry data at the first location within the header;
modifying, by the first node, the second indication of the packet to indicate a second location within the header where the second node is to append second telemetry data of the specific type that is associated with the second node;
and
sending the packet to the second node, the packet including the first telemetry data and the second indication indicating the second location.

6 more elements

A system associated with a network, the system comprising:

one or more processors;
and
one or more non-transitory computer-readable media storing instructions that, when executed, cause the one or more processors to perform operations comprising:
receiving, at a first node of the network, a packet that is to be sent to at least a second node of the network, the packet comprising:
a first indication of a specific type of telemetry data that the first node is to append to the packet;
and
a second indication of a first location within a header of the packet where the first node is to append the specific type of the telemetry data;
determining, by the first node and based at least in part on the first indication, first telemetry data of the specific type that is associated with the first node;
appending, by the first node and based at least in part on the second indication, the first telemetry data at the first location within the header;
modifying, by the first node, the second indication of the packet to indicate a second location within the header where the second node is to append second telemetry data of the specific type that is associated with the second node;
and
sending the packet to the second node, the packet including the first telemetry data and the second indication indicating the second location.

9 more elements

One or more non-transitory computer readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

receiving, at a first node of a network, a packet that is to be sent to at least a second node of the network, the packet comprising:
a first indication of a specific type of telemetry data that the first node is to append to the packet;
and
a second indication of a first location within a header of the packet where the first node is to append the specific type of the telemetry data;
determining, by the first node and based at least in part on the first indication, first telemetry data of the specific type that is associated with the first node;
appending, by the first node and based at least in part on the second indication, the first telemetry data at the first location within the header;
modifying, by the first node, the second indication of the packet to indicate a second location within the header where the second node is to append second telemetry data of the specific type that is associated with the second node;
and
sending the packet to the second node, the packet including the first telemetry data and the second indication indicating the second location.

6 more elements

Dependencies are inferred from the claim text.

Telemetry data optimization for path tracing and delay measurement

Life of this patent

Telemetry data optimization for path tracing and delay measurement

Life of this patent

Abstract

Claims20