HP 1820, Management And Configuration Manual

Page: 101 / 110

11-9
Diagnostics
MAC Table
Select Enabled and click Apply to cause the Locator LED on the switch to blink for 30 minutes. This feature
is disabled by default.
Note that this setting is not stored with the system configuration, so clearing the configuration will not change
this value. If the switch reboots, this value is reset to
Disabled .
MAC Table
The MAC address table keeps track of the Media Access Control (MAC) addresses associated with each port.
This table enables the switch to forward unicast traffic through the appropriate port. The MAC address table is
sometimes called the bridge table or the forwarding database.
To display the MAC Table page, click Diagnostics > MAC Table in the navigation pane.
Figure 11-8.MAC Table Page
Table 11-4. MAC Table Fields
Field Description
Maximum
Entries
Supported The maximum number of MAC address entries that can be learned on the switch. The 8- and 24-
port switches support a maximum of 8,000 entries and the 48-port switches support a maximum of
16,000 entries.
VLAN ID The VLAN or VLANs with which the MAC address is associated.
MAC Address A unicast MAC address for which the switch has forwarding and/or filtering information. The
format is a six-byte MAC address, with each byte separated by colons.
Interface The port where this address was learned. The port identified in this field is the port through which
the MAC address can be reached.
CPU is a special source port used for internal management on
the switch
Interface Index The Interface Index of the MIB interface table entry associated with the source port. This value
helps identify an interface when using SNMP to manage the switch.