Brocade ICX 6650 Administration Guide 209
53-1002600-01
LLDP-MED configuration 8
Defining a location id
The LLDP-MED Location Identification extension enables the Brocade ICX 6650 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.
Brocade(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>
latitude <degrees> is the angular distance north or south from the earth equator measured
through 90 degrees. Positive numbers indicate a location north of the equator and negative
numbers indicate a location south of the equator.
resolution <bits> specifies the precision of the value given for latitude. A smaller value increases
the area within which the device is located. For latitude, enter a number between 1 and 34.
longitude <degrees> is the angular distance from the intersection of the zero meridian. Positive
values indicate a location east of the prime meridian and negative numbers indicate a location
west of the prime meridian.
resolution <bits> specifies the precision of the value given for longitude. A smaller value increases
the area within which the device is located. For longitude resolution, enter a number between 1
and 34.