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PowerConnect B-Series FCX Configuration Guide 709
53-1002266-01
Configuring LLDP-MED
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NOTE
The LLDP-MED fast start mechanism is only intended to run on links between Network Connectivity
devices and Endpoint devices. It does not apply to links between LAN infrastructure elements,
including between Network Connectivity devices, or to other types of links.
To change the LLDP-MED fast start repeat count, enter commands such as the following.
PowerConnect(config)#lldp med fast-start-repeat-count 5
The above command causes the device to send five LLDP packets during the LLDP-MED fast start
period.
Syntax: [no] lldp med fast-start-repeat-count <value>
where value is a number from 1 to 10, which specifies the number of packets that will be sent
during the LLDP-MED fast start period. The default is 3.
Defining a location id
The LLDP-MED Location Identification extension enables the Dell PowerConnect device to set the
physical location that an attached Class III Endpoint will use for location-based applications. This
feature is important for applications such as IP telephony, for example, where emergency
responders need to quickly determine the physical location of a user in North America that has just
dialed 911.
For each port, you can define one or more of the following location ID formats:
• Geographic location (coordinate-based)
• Civic address
• Emergency Call Services (ECS) Emergency Location Identification Number (ELIN)
The above location ID formats are defined in the following sections.
Coordinate-based location
Coordinate-based location is based on the IETF RFC 3825 [6] standard, which specifies a Dynamic
Host Configuration Protocol (DHCP) option for the coordinate-based geographic location of a client.
When you configure an Endpoint location information using the coordinate-based location, you
specify the latitude, longitude, and altitude, along with resolution indicators (a measure of the
accuracy of the coordinates), and the reference datum (the map used for the given coordinates).
To configure a coordinate-based location for an Endpoint device, enter a command such as the
following at the Global CONFIG level of the CLI.
PowerConnect(config)#lldp med location-id coordinate-based latitude
-78.303 resolution 20 longitude 34.27 resolution 18 altitude meters 50 resolution
16 wgs84
Syntax: [no] lldp med location-id coordinate-based
latitude <degrees> resolution <bits>
longitude <degrees> resolution <bits>
altitude floors <number> resolution <bits> | meters <number> resolution <bits>
<datum>