Controller Based WLANs

How to configure an Aruba Access Point to advertise TLV information during LLDP negotiations?

Aruba Employee
Requirement:
An Aruba Controller running 6.4 and above with Aruba Access Point terminating to it.


Solution:
Link Layer Discovery Protocol (LLDP), is a Layer-2 protocol that allows network devices to advertise their identity and capabilities on a LAN. Wired interfaces on Aruba AP's support LLDP by periodically transmitting LLDP Protocol Data Units (PDU) comprised of selected type-length-value (TLV) elements.
 
LLDP-MED (media end point devices) is an extension to LLDP that supports interoperability between VoIP and video streaming devices and other networking clients. LLDP-MED network policy discovery lets end-points and network devices advertise the VLAN, priority levels and DSCP values used by a voice or video application.


Configuration:
LLDP configurations for an Aruba Access Point is enabled by default however we can configure and change the settings as below.
 
In CLI:
(ArubaMaster) #configure terminal
Enter Configuration commands, one per line. End with CNTL/Z

(ArubaMaster) (config) #ap lldp profile AP
(ArubaMaster) (AP LLDP Profile "AP") #dot1-tlvs vlan-name port-vlan
(ArubaMaster) (AP LLDP Profile "AP") #dot3-tlvs mac link-aggregation power mfs
(ArubaMaster) (AP LLDP Profile "AP") #optional-tlvs port-description system-description system-name capabilities management-address
(ArubaMaster) (AP LLDP Profile "AP") #lldp-med-tlvs capabilities inventory network-policy
(ArubaMaster) (AP LLDP Profile "AP") #!
(ArubaMaster) (config) #

In WebUI:



Verification
We can verify the configuration as below.
(ArubaMaster) #
(ArubaMaster) #show ap lldp profile AP

AP LLDP Profile "AP"
--------------------
Parameter                        Value
---------                        -----
PDU transmission                 Enabled
Reception of LLDP PDUs           Enabled
Transmit interval (seconds)      30
Transmit hold multiplier         4
Optional TLVs                    port-description system-description system-name capabilities management-address
802.1 TLVs                       port-vlan vlan-name
802.3 TLVs                       mac link-aggregation mfs power
LLDP-MED TLVs
LLDP-MED network policy profile  N/A

(ArubaMaster) #
We can verify the LLDP negotiations as seen in the below screen shot from the packet capture from the port in which the Aruba AP is connected.

Version history
Revision #:
2 of 2
Last update:
‎04-02-2017 11:31 PM
Updated by:
 
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