Lldp Overview - Cisco Small Business 200 Series Administration Manual

Administration: Discovery
Configuring LLDP

LLDP Overview

LLDP is a protocol that enables network managers to troubleshoot and enhance network management in
multi-vendor environments. LLDP standardizes methods for network devices to advertise themselves to
other systems, and to store discovered information.
LLDP enables a device to advertise its identification, configuration, and capabilities to neighboring devices
that then store the data in a Management Information Base (MIB). The network management system models
the topology of the network by querying these MIB databases.
LLDP is a link layer protocol. By default, the device terminates and processes all incoming LLDP packets as
required by the protocol.
The LLDP protocol has an extension called LLDP Media Endpoint Discovery (LLDP-MED) that provides and
accepts information from media endpoint devices such as VoIP phones and video phones. For further
information about LLDP-MED, see
LLDP Configuration Workflow
Following are examples of actions that can be performed with the LLDP feature and in a suggested order.
You can refer to the LLDP/CDP section for additional guidelines on LLDP configuration. LLDP configuration
pages are accessible under the Administration > Discovery LLDP menu.
1. Enter LLDP global parameters, such as the time interval for sending LLDP updates using the LLDP
Properties page.
2. Configure LLDP per port by using the Port Settings page. On this page, interfaces can be configured to
receive/transmit LLDP PDUs, send SNMP notifications, specify which TLVs to advertise, and advertise the
device's management address.
3. Create LLDP MED network policies by using the LLDP MED Network Policy page.
4. Associate LLDP MED network policies and the optional LLDP-MED TLVs to the desired interfaces by
using the LLDP MED Port Settings page.
5. If Auto Smartport is to detect the capabilities of LLDP devices, enable LLDP in the Smartport Properties
page.
6. Display overloading information by using the LLDP Overloading page.
Cisco Small Business 200 Series Smart Switch Administration Guide
LLDP MED Network Policy.
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