Abstract
Many enterprise devices, in theory, claim to be High Availability (HA) capable, supporting stateful switchover. However, in practice, depending on the architecture, scale, and various other factors, control plane switchover times might be significantly impacted causing a peer to falsely detect a switchover as a total control plane failure. There is currently no way for a peer to be notified that a HA system is going through a switchover and to allow for increased tolerance till the switchover completes. To address such issues, techniques are proposed herein to address this gap and allow for peers to be notified about the start and end of control plane switchover transitions. In some instances, the proposed techniques can be hardware assisted to cover scenarios involving a total software failure (control plane failure).
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Kumar, Ashwin; Parameswaran, Preetha; and Sarma, Lakshmi Priya, "STATEFUL SWITCHOVER NOTIFICATION TECHNIQUES", Technical Disclosure Commons, (November 19, 2025)
https://www.tdcommons.org/dpubs_series/8902