System information

Configuring Discovery
Configuring LLDP
Cisco Small Business 200 Series Smart Switch Administration Guide 51
7
STEP 3 Click Apply. Bonjour is enabled or disabled on the switch according to the
selection.
Configuring LLDP
The Link Layer Discovery Protocol (LLDP) enables network managers to
troubleshoot and enhance network management by discovering and maintaining
network topologies over multi-vendor environments. LLDP discovers network
neighbors by standardizing 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.
The LLDP protocol operates by broadcasting Multicast frames from each port.
These are referred to as Protocol Data Units (PDUs or LLDP PDUs), and are
processed by devices that are aware of the LLDP protocol. The LLDP PDUs pack
information in TLVs (type-length-value tuples). The types of TLVs to be broadcast
can be configured.
The LLDP protocol has an extension called LLDP Media Endpoint Discovery
(LLDP-MED), which provides and accepts information from voice or video devices.
For further information about LLDP-MED, see the LLDP MED Protocol section.
LLDP Configuration Workflow
Following are examples of actions that can be performed with the LLDP feature:
1. Enable LLDP globally (LLDP is enabled by default), and enter LLDP global
parameters, such as the time interval for sending LLDP updates using the
LLDP
Properties Page
.
2. Configure LLDP per interface by using the
Port Settings Page .
3. Create LLDP MED network policies by using the
LLDP MED Network Policy
Page
.
4. Associate LLDP MED network policies to ports by using the
LLDP MED Port
Settings Page
.
5. View LLDP local port status details by using the
LLDP Local Information Page.