How to configure an Aruba Access Point to advertise TLV information during LLDP negotiations?
An Aruba Controller running 6.4 and above with Aruba Access Point terminating to it.
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.
LLDP configurations for an Aruba Access Point is enabled by default however we can configure and change the settings as below.
(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) #
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.