Defining A Location Id - Brocade Communications Systems FastIron Administration Manual

Defining a location id

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.
device(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 medfast-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 Brocade 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.
device(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.
198 FastIron Ethernet Switch Administration Guide
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