• Author : Dharmesh Shah

 
 

LACP Fallback and PXE/Provisioning in Openstack

As shown in the diagram above, we have a Server which needs to PXE to fetch its Kernel/RAM Disk/etc via Provisioning vlan (205). The server is dual homed to LeafA and LeafB which are in MLAG. Use Case: We don’t want to waste a dedicated NIC on the Server, on the Switch and cabling just for PXE boot. We would like to leverage an LACP bond used for other Openstack VLANs (e.g. internal API, Storage, Storage-mgmt, etc) for PXE/Provisioning too. Problem: LACP is configured on the 2 Leaf switches, but the server doesn’t even have an OS to form the...
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