All TLV's sent by LLDP

[LynnLockhart4295]

Specifically, I have a customer who is looking for a TLV that would have all the available Vlans allowed on a specific interface.

[Martin Aleksandrov]

Hello,

This is supported on SG250/350/550 series switches. You can enter the TLVs that are sent in the LLDP Protocol Data Unit (PDU). The LLDP-MED TLVs to be advertised can be configured through LLDP-MED Port Settings, and the management address TLV of the device may be configure. The 802.1 optional TLVs include:

- PVID — Port VLAN ID advertised. This feature is disabled by default.

- PPVID — Protocol Port VLAN ID advertised.

- VLANs — The VLANs that will be advertised.

- Protocols — The protocols that will be advertised.

For more information you can visit the following link: https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-small-business-300-series-managed-switches/smb5578-configure-link-layer-discovery-protocol-lldp-port-settings-o.html

[LynnLockhart4295]

Thank you for the reply. Would you happen to know if the same option is available on the Nexus 93180's?

[Martin Aleksandrov]

Hello,

The Cisco Nexus 9000 NX-OS system (release 7.0) does support LLDP which advertises the following TLVs by default: 

• DCBXP

• Management address

• Port description

• Port VLAN

• System capabilities

• System description

• System name

Those are all configurable. More information you can find at https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/system_management/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_... 

Regards,

Martin