Wired Location Service - Cisco IE-3000-8TC Software Configuration Manual
Software configuration guide
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Also See for IE-3000-8TC:
- Command reference manual (802 pages) ,
- Administration manual (496 pages) ,
- Message manual (98 pages)
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Chapter 27
Configuring LLDP, LLDP-MED, and Wired Location Service
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Wired Location Service
The switch uses the wired location service feature to send location and attachment tracking information
for its connected devices to a Cisco Mobility Services Engine (MSE). The tracked device can be a
wireless endpoint, a wired endpoint, or a wired switch or controller. The switch notifies the MSE of
device link up and link down events through the Network Mobility Services Protocol (NMSP) location
and attachment notifications.
The MSE starts the NMSP connection to the switch, which opens a server port. When the MSE connects
to the switch there are a set of message exchanges to establish version compatibility and service
exchange information followed by location information synchronization. After connection, the switch
periodically sends location and attachment notifications to the MSE. Any link up or link down events
detected during an interval are aggregated and sent at the end of the interval.
When the switch determines the presence or absence of a device on a link-up or link-down event, it
obtains the client-specific information such as the MAC address, IP address, and username. If the client
is LLDP-MED- or CDP-capable, the switch obtains the serial number and UDI through the LLDP-MED
location TLV or CDP.
Depending on the device capabilities, the switch obtains this client information at link up:
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Depending on the device capabilities, the switch obtains this client information at link down:
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OL-13018-03
Location TLV
Provides location information from the switch to the endpoint device. The location TLV can send
this information:
Civic location information
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Provides the civic address information and postal information. Examples of civic location
information are street address, road name, and postal community name information.
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ELIN location information
Provides the location information of a caller. The location is determined by the Emergency
location identifier number (ELIN), which is a phone number that routes an emergency call to
the local public safety answering point (PSAP) and which the PSAP can use to call back the
emergency caller.
Slot and port specified in port connection
MAC address specified in the client MAC address
IP address specified in port connection
802.1X username if applicable
Device category is specified as a wired station
State is specified as new
Serial number, UDI
Model number
Time in seconds since the switch detected the association
Slot and port that was disconnected
MAC address
IP address
802.1X username if applicable
Understanding LLDP, LLDP-MED, and Wired Location Service
Cisco IE 3000 Switch Software Configuration Guide
27-3
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