Lantech LGS-2624C User manual - page 242
Manual is about: 20 10/100/1000T + 4 100/1000M
SFP Combo + 2 100/1000M SFP L2
Plus Managed Switch
of
279
Age/Hold
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.