How to add LLDP ZTP VLAN at specific L3Leaf Port via AVD

[geckigek]

Hi there,

I want to use the ztp feature to tell a 710P, which has no mgmt interface, to contact CVP to get a inital config to be deployed via AVD. There is a guide how to enable ztp via lldp on the l3leaf switch, which is the uplink switch for the 710P L2 leaf.(https://www.arista.com/en/support/toi/eos-4-27-1f/14879-campus-ztp-through-vlan-advertised-from-spine-aggregation-switch)

Is there a way to define via AVD on the downlink port of the l3leaf the lldp ztp vlan for the layer2 switch?

Best regards

Stefan

[ClausHolbechArista]

Since L2 switches in AVD are always using port-channels, we have chosen to implement inband ZTP support using LACP fallback individual.
Set inband_ztp: true under l2leaf either in defaults, node-group or node settings for the 710P (notice it is for the switch to be booted via inband_ztp, not the uplink switch).
Also make sure you have configured inband management with inband_mgmt_subnet or inband_mgmt_ip and notice that the default inband_mgmt_vlan is 4092. I suggest you read the (long) descriptions around the inband_mgmt_* parameters, since there are a number of restrictions and useful explanations.

Let us know if it works out or if you have more questions.

Thanks
Claus

[ClausHolbechArista]

@jrecchia1029 it would be nice if you could find time to write a guide for inband ZTP under the eos_designs how-to guides.

[geckigek]

Hi,

thanks for your answer. So with the port-channel configuration it is not possible to use the lldp ztp vlan feature directly on the port? Correct? And how do I verify that die lacp fallback individual is configured correctly? Which commands show be found in the rendered cli config for the l3leaf and l2leaf switch?

Best regards

[ClausHolbechArista]

The ethernet interfaces part of a downlink port-channel will have the configuration on them that is effective in the fallback case. The port-channel will have the fallback individual command. The downstream switch (the one booting with inband ztp) will not have any special config since it has no config during inband ztp :)