Cisco Small Business 200, Руководство администратора

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Administration: Discovery
Configuring LLDP
83 Cisco Small Business 200 Series Smart Switch Administration Guide
8
• Configuring LLDP MED Port Settings
• Displaying LLDP Port Status
• Displaying LLDP Local Information
• Displaying LLDP Neighbors Information
• Accessing LLDP Statistics
• LLDP Overloading
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), which provides and accepts information from media endpoint
devices such as VoIP phones and video phones. For further information about
LLDP-MED, see
LLDP MED Network Policy .
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.