ZyXEL Communications PES-1014 - Manual (Page 51)

PES-1014 User’s Guide
Forwarding Database 8-1
Chapter 8
Forwarding DB (Database)
8.1 Introduction
The switch will check the address tables (Forwarding Database) before sending data packets to make sure all of the
packets are sent correctly. The address table (look up table, forwarding table) can be built by dynamic (automatic)
address learning or by static (manual) entry. Using dynamic address learning it is possible to age out certain entries
if aging control is enabled and the aging time expires; but it is also keeps updating for new packets received with
different SAs.
The switch does not age out or update static entries. The only way to change the static entries is through manual
editing in the Edit Static Entry screen.
Moving the cursor over the Forwarding DB icon brings up the following submenus.
Enabling the Security setting for a port in the Port Configuration screen (5.3) automatically disables the aging
out timer for that port and changes it to a static entry in the Forwarding Database.
8.2 Current Forwarding DB Status
Move the cursor over the Forwarding DB link and click Current Status to display the Current Forwarding DB
Status screen shown next. This screen shows the current forwarding database status. A total of 17 K MAC
addresses entries can be stored in the device.
Figure 8-1 Forwarding Database Bar