- Written by Ioana Costea
- Posted on March 31, 2017
- Updated on September 15, 2025
- 11292 Views
Persistent port security is a feature which ensures that port-security MAC cache is preserved across link flap and system reload. The feature is useful when it is desired to have the same set of already allowed secure MAC addresses on a particular interface after system reload or link flaps. There are separate global configurations to enable persistent port-security for shutdown and protect mode. A command to clear the MAC entries and secure MAC cache for interfaces with port-security configured has been added.
- Written by Coy Humphrey
- Posted on September 15, 2020
- Updated on June 7, 2024
- 16628 Views
This TOI describes a set of enhancements made to the existing Port Security: Protect Mode (PortSec-Protect) feature. Please see the existing TOI for this feature here:Port Security: Protect Mode
- Written by Yuyang Chen
- Posted on June 15, 2021
- Updated on June 21, 2021
- 13110 Views
Port wide port security: Port security with address limit on the port configured by the existing shutdown mode port