A system power budget is the default power allocated to a device based on its device class. However, the
total power that can be sourced from a switch is finite, and there will be some power budgeting done by
the power module based on the number of ports already being served, total power that can be served, and
how much new ports are requesting.
Note
•
Inventory management TLV
—
Allows an endpoint to send detailed inventory information about itself
to the switch, including information hardware revision, firmware version, software version, serial number,
manufacturer name, model name, and asset ID TLV.
•
Location TLV
—
Provides location information from the switch to the endpoint device. The location
TLV can send this information:
•
Civic location information
—
Provides the civic address information and postal information.
Examples of civic location information are street address, road name, and postal community name
information.
•
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.
Benefits of LLDP
•
Follows IEEE 802.1ab standard.
•
Enables interoperability among multivendor devices.
•
Facilitates troubleshooting of enterprise networks and uses standard network management tools.
•
Provides extension for applications such as VoIP.
How to Configure Link Layer Discovery Protocol in Multivendor
Networks
Enabling and Disabling LLDP Globally
LLDP is disabled globally by default. This section describes the tasks for enabling and disabling LLDP
globally.
Enabling LLDP Globally
Perform this task to enable LLDP globally.
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
332
Using Link Layer Discovery Protocol in Multivendor Networks
Benefits of LLDP
