Data Plane Monitoring in Segment Routing Networks
Traffic blackholes, path divergence, and network faults are a significant pain point for network operators, leading to revenue and goodwill loss. The common source …
| Talk Title | Data Plane Monitoring in Segment Routing Networks |
| Speakers | Clayton Hassen, Faisal Iqbal, Cisco Systems Inc. |
| Conference | NANOG74 |
| Conf Tag | |
| Location | Vancouver, BC, Canada |
| Date | Oct 1 2018 - Oct 3 2018 |
| URL | Talk Page |
| Slides | Talk Slides |
| Video | Talk Video |
Traffic blackholes, path divergence, and network faults are a significant pain point for network operators, leading to revenue and goodwill loss. The common source of these inconsistencies includes software bugs, control & data plane out-of-sync, race conditions, download/programming errors, forwarding entry corruption in software or hardware etc. Existing local and end-to-end detection mechanisms for these faults are either incomplete or fail to scale for large networks. Segment Routing Data Plane Monitoring (SR-DPM) is a solution for a device to test its data plane for any SR-MPLS traffic received from any incoming interface towards any ECMP. Using a combination of adjacency and prefix SIDs, it allows a node to verify the correct functioning of its complete (ingress + egress) data plane in a scalable fashion. The SR-DPM solution is interoperable by design and does not require any software upgrade of the neighboring nodes. In this presentation, we outline SR-DPM solution with the focus on the Segment Routing networks with MPLS data plane.
