Tp-Link TL-SG2216WEB [22/75] Aging time and dynamic address table

Web Smart Gigabit Switch Family User's Guide

TL-SG2216WEB/TL-SG2224WEB

4.3.2 Aging Time and Dynamic Address Table

A dynamic MAC address table is maintained inside the switch. A MAC address

is the physical address of a network device; it is six-bytes long and should be

hole in a subnet. A network device can be identied by its MAC address.

A dynamic address table entry contains two items: MAC address and its

corresponding switch port. The dynamic address table is volatile. The dynamic

address entry begins to age once it is added; it will be purged if it isn’t renewed

in a specied time length, which is dened as aging time.

The aging time ranges from 0 to 630 seconds for this switch family.

The default value is 300 seconds. Dynamic address table entry won’t age if 0

is set. The aging time precision is 15 seconds.

4.3.3 Static MAC Address Table

A static MAC address table entry contains a MAC address and its

corresponding switch port. All the packets taking that MAC address as their

destination will be forwarded to the corresponding switch port.

The static MAC address won’t age, which differs from the dynamic MAC

address. The static MAC address table entry is always valid before it is

deleted.

Suppose an entry, whose MAC address is 000AEB000001 and corresponding

port number is 1, is added to the static MAC address table. All the packets

routing to the address of 000AEB000001 egress for the switch port 1. This

static entry obliges the device of 000AEB000001 to be connected to port 1;

otherwise, that device cannot be accessed. Static MAC addresses are free of