Trellis supports various topologies, from a single switch to a full multi-stage leaf-spine fabric.
This is the minimum Trellis setup. In this setup, all servers are connected to a single switch.
Compared to single switch, it provides more redundancy in terms of server NIC failure and link failure.
Without paired switches¶
Compared to single switch, it offers more redundancy in terms of switch failure and provides better scalability.
With paired switches¶
It supports all the redundancy and scalability features mentioned above.
Multi-stage is specifically designed for telco service providers. The first stage can be installed in the central office, while the second stage can be installed in a field office that is closer to the subscribers. Two stages are typically connected via long distance optical transport.