公开(公告)号：US10911355B2

公开(公告)日：2021-02-02

申请号：US16212569

申请日：2018-12-06

Applicant: Cisco Technology, Inc.

Inventor： Ratnananda Ganesh Dontula Venkata ,  Ravikanth Nasika ,  Saikat Bhattacharya

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/947 ,  H04L29/06

Abstract: Techniques for utilizing in-band telemetry (INT) in network fabrics are provided. A packet is received at a leaf node in a first logical group of nodes. Upon determining that the first packet was received from a node outside of the first logical group of nodes, the packet is encapsulated with a first header indicating an internal virtual extensible local area network (iVXLAN) identifier associated with the packet, and a second header indicating a policy group is added to the packet. Further, upon determining that a destination of the packet is associated with a second logical group of nodes, a third header is added to the first packet, where the third header stores in-band network telemetry (INT) for the packet, and telemetry data is added to the third header. The packet is transmitted to a spine node in the first logical group of devices.