D-Link DES-3028, User Manual

Page: 145 / 333

DES-3028 DES-3028P DES-3028G DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Interval (1-32767) Set a Loopdetect Interval between
1
and
32767
seconds. The default is
10
seconds.
Recover Time
(0 or 60-1000000)
Time allowed (in seconds) for recovery when a Loopback is detected. The Loopdetect
Recover Time can be set at
0
seconds, or
60
to
1000000
seconds. Entering
0
will
disable the Loopdetect Recover Time. The default is
60
seconds.
From Port Use the drop-down menu to select a beginning port number.
To Port Use the drop-down menu to select an ending port number.
State Use the drop-down menu to toggle between
Enabled
and
Disabled.
Click
Apply
to implement changes made.
LLDP
The Link Layer Discovery Protocol (LLDP) allows stations attached to a LAN to advertise, to other stations attached to the same
LAN segment, the connectivity and management information necessary to identify, to those management entities, the station's
point of attachment to the LAN or network. The information distributed via this protocol is stored by its recipients in a standard
management information base (MIB), making it possible for the information to be accessed by a network management system
(NMS) using a management protocol such as the Simple Network Management Protocol (SNMP).
LLDP standard specifies the necessary protocol and management elements to:
1. Facilitate multi-vendor inter-operability and the use of standard management tools to discover and make available
physical topology information for network management
2. Make it possible for network management to discover certain configuration inconsistencies or malfunctions that can
result in impaired communication at higher layers.
3. Provide information to assist network management in making resource changes and/or reconfigurations that correct
configuration inconsistencies or malfunctions identified above.
LLDP is a one way protocol (transmit and receive are separated). An LLDP agent can transmit information about the capabilities
and current status of the system associated with its MSAP identifier. The LLDP agent can also receive information about the
capabilities and current status of the system associated with a remote MSAP identifier. However, LLDP agents are not provided
any means of soliciting information from other LLDP agents via this protocol.
LLDP allows the transmitter and the receiver to be separately enabled, making it possible to configure an implementation to
restrict the local LLDP agent either to transmit only or receive only, or to allow the local LLDP agent to both transmit and receive
LLDP information
LLDP Global Settings
The following window is used to set up LLDP on the Switch. To view this window click
L2 Features
>
LLDP
>
LLDP Global
Settings
.
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