Planet Networking & Communication IGS-10020HPT User Manual page 315

• Time of Addition
• Age/Hold
Shows the date and time when this MAC address was first seen on the port.
If at least one user module has decided to block this MAC address, it will

stay in the blocked state until the hold time (measured in seconds) expires.
If all user modules have decided to allow this MAC address to forward, and

aging is enabled, the Port Security module will periodically check that this
MAC address still forwards traffic.
If the age period (measured in seconds) expires and no frames have been

seen, the MAC address will be removed from the MAC table. Otherwise a
new age period will begin.
If aging is disabled or a user module has decided to hold the MAC address

indefinitely, a dash (-) will be shown.
315
User's Manual of IGS PoE series