I am looking at replacing my core 10G network. I have looked at some arista switches and now I am evaluating these HP's with cumulus. Hoping to use this thread to ask questions along the way. I am setting up a MLAG, so I can LACP across the switches. My plan is to have 2 x 2 switches in 2 DC. I will have 2 x 10G connections that I was going to LACP . But I realise that might not be the best way to connect the switches. Is there another way. I do want to try and stay with open standards though. Definitely thing MLAG in the DC. where I can LACP to my mikrotek routers I found this article on how to vlan https://support.cumulusnetworks.com/hc/en-us/articles/204909397 with this The only reasons to use the traditional mode are: Familiarity with traditional Linux syntax. VXLAN support: The traditional mode currently (as of CL 2.5.5) supports VXLAN. The VLAN-Aware mode will support VXLANs in a Cumulus Linux future release. PVSTP+ interoperability: The traditional mode currently runs an instance of spanning tree per bridge. The VLAN-Aware STP mode is compatible with other types of spanning tree but only runs single instance MST. To achieve Per-VLAN STP/RSTP the traditional bridge mode must be used. I have just moved every thing to RSTP (Dell) and RPVST (?) on the cisco. should I be using traditional or the newer vlan aware... Currently don't have 200 vlans, but there might be a time in the future where I could have that many - not the near future.