I'm not sure what your question is.

Is the question whether the switches support LACP? Yes, they do.

Is the question whether your physical network topology avoids a SPoF? No, it doesn't. If the core switch (the 28TQ) fails, services will be down.

Is the question how to set up a topology for high availability? See this network topology for how to set up a HA cluster.

As for the switches you will need to set up LACP, STP/RSTP and VLANs in my opinion.

For routing you need a routing protocol on the cluster nodes (e.g. OSPF).

Rainair wrote

The question is: Have the designated TP-Link Switches the spezification for Link Aggregation Group (LAG) with typ IEEE 802.1AX-2008 (previously IEEE 802.3ad). As I read, bonding plays a big role, if it is dynamic or Static LAG (LACP).

I think there is some confusion about terms. LAG stands for Link Aggregation Group, which is just an instace of aggregated ports, while LACP is a protocol to dynamically create such LAGs (versus a static LAG config). What adds to the confusion is that several vendors/systems use other terms for link aggregation such as bonding, trunking , teaming, port aggregation, EtherChannel etc.

Regarding the standards 802.3ad is the name of the workgroup at IEEE which once did standardize link aggregation. The workgroup was moved to the 802.1AX workgroup in 2008, however link aggregation is sometimes still referred to as 802.3ad. LACP is part of the IEEE 802.1AX standard, but it is not the entirety of the 802.1AX standard. Also, there are many more LA methods such as pinning or even port channels which are neither in 802.1AX nor in any other standard and which might need or not need LACP.

So, to answer your question: Yes, T1700X-16TS and T1700G-28TQ both support 802.3ad/802.1AX link aggregation using static and dynamic (LACP) LAGs according to the specs on the TP-Link product website.

Hi @Mitya,

as I understand the thread opener was concerned about compliance with 802.3ad LACP, not stacking. Right, T1700X-16TS is not stackable, only T1700G-28TQ is.