User's Manual

Device Management
Diagnosing the Device
Cisco ISA500 Series Integrated Security Appliance Administrator Guide 324
10
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 store the data in a Management
Information Base (MIB). The network management system models the topology of
the network by querying these MIB databases.
STEP 1 Click Device Management -> Discovery -> LLDP.
The LLDP window opens.
STEP 2 Click On to enable LLDP, or click Off to disable it. If you enable LLDP, the LLDP
neighbors are listed in the LLDP Neighbor table.
STEP 3 To view the detail of a LLDP neighbor, check the box and click Details.
STEP 4 To refresh the information in the LLDP Neighbor table, click Refresh.
STEP 5 Click Save to apply your settings.
Diagnosing the Device
Use the Diagnostics pages to access the configurations of the security appliance
and to monitor the overall network health. The following tools are supported to
diagnose your network.
• Ping, page 325
• Tracert, page 325
• DNS Lookup, page 326
• Packet Capture, page 326
• System Diagnostics, page 327