![]() Both LACP and IP Hash require special switch port configurations.The only two load balancing modes that can in anyway grant a single vNIC more bandwidth than a single physical NIC in the team are LACP and IP Hash.If you’re using Host Profiles to configure host networking, LACP can’t be configured using them, an important consideration when using stateless autodeploy.If you want to use port mirroring for any reason, LACP doesn’t support it.You can only use LACP and Load Based Teaming if you’re using VDS.They should be considered first and foremost before the general recommendations. Take these into account before reading my general recommendations! One or more of these might force you in a specific directions or rule out some of options. I want to throw out some cavaets first, and then give some general hand rules. Long answer – There are MANY MANY considerations when selecting between load balancing.Short answer – there’s no right answer for everyone.What load balancing should be used in vSphere networking – Virtual Port ID, MAC hash, IP Hash, LACP, or Load Based Teaming?.This should keep the number of unused virtual switch ports to a minimum while allowing the port groups to scale up and down as needed. Generally, use the default 8 for number of ports, and set allocation to elastic. ![]() When using Virtual Distributed Switches (VDS) in vSphere networking configurations, what should distributed port group port allocations be set to – Elastic or Static?.One advantage ephemeral does have is it does not require vCenter to be available for VMs to make use of those ports static sometimes does, hence the recommendation for vCenter and related workloads to use ephemeral port bindings to avoid chicken and egg type scenarios, as vCenter is the control plane for the VDS, and is therefore mainly responsible for port bindings. However, ephemeral slows down operations within the VDS as ports are allocated and unallocated when VMs are powered off and on. This reduces the number of VDS ports consumed, as powered off VMs don’t use up VDS ports. Ephemeral basically is no binding at all. It also generally results in less load on vCenter and ESXi hosts, as ports aren’t constantly allocated and unallocated. However, VMs will consume more VDS ports since they will consume them even when powered off, but that’s a lot of ports to eat through. Static has a few advantages a VM will always stay on the same virtual switch port even if powered off, so statistics are easier to get for a particular virtual NIC. ![]()
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