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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
87
lldpStatsRemTableLastChangeTime to detect any lldpRemTablesChange
notification-events missed due to throttling or transmission loss.
• TLV Type
Configures the information included in the TLV field of advertised messages.
-Port Description – The port description is taken from the ifDescr object in RFC
2863, which includes information about the manufacturer, the product name, and
the version of the interface hardware/software.
-System Description – The system description is taken from the sysDescr
object in RFC 3418, which includes the full name and version identification of the
system's hardware type, software operating system, and networking software.
-Management Address – The management address protocol packet includes
the IPv4 address of the switch. If no management address is available, the
address should be the MAC address for the CPU or for the port sending this
advertisement. The management address TLV may also include information
about the specific interface associated with this address, and an object identifier
indicating the type of hardware component or protocol entity associated with this
address. The interface number and OID are included to assist SNMP
applications in the performance of network discovery by indicating enterprise
specific or other starting points for the search, such as the Interface or Entity
MIB.
Since there are typically a number of different addresses associated with a Layer
3 device, an individual LLDP PDU may contain more than one management
address TLV.
Every management address TLV that reports an address that is accessible on a
port and protocol VLAN through the particular port should be accompanied by a
port and protocol VLAN TLV that indicates the VLAN identifier (VID) associated
with the management address reported by this TLV.
-System Name – The system name is taken from the sysName object in RFC
3418, which contains the system’s administratively assigned name. To configure
the system name, see “Displaying System Information”.
-System Capabilities – The system capabilities identifies the primary function(s)
of the system and whether or not these primary functions are enabled. The
information advertised by this TLV is described in IEEE 802.1AB.
• MED TLV Type
Configures the information included in the MED TLV field of advertised
messages.
-Port Capabilities – This option advertises LLDP-MED TLV capabilities, allowing
Media Endpoint and Connectivity Devices to efficiently discover which
LLDP-MED related TLVs are supported on the switch.