What is a characteristic of spine-and-leaf architecture?
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Spine-and-leaf architecture is a type of network topology that provides high bandwidth, low latency, and scalability. It is commonly used in data centers and cloud computing environments. In this architecture, switches are arranged in two layers: spine switches and leaf switches.
Spine switches form the core of the network and are connected to every leaf switch. Leaf switches are connected to end-user devices such as servers and storage systems.
A characteristic of spine-and-leaf architecture is that each link between leaf switches allows for higher bandwidth. This is because all traffic between the leaf switches must pass through the spine switches, which have a high-speed connection to each other. This means that the overall network capacity is increased, and there is no single point of failure.
Another characteristic of spine-and-leaf architecture is that it provides greater predictability on STP (Spanning Tree Protocol) blocked ports. STP is a protocol used to prevent loops in a network, and it can sometimes cause certain ports to be blocked. In spine-and-leaf architecture, the blocked ports are typically limited to the links between spine switches and leaf switches, which makes it easier to predict and manage network traffic.
Spine-and-leaf architecture also provides low and predictable latency. This is because all devices are separated by the same number of hops, and the spine switches have a direct connection to each other. This means that network traffic can be routed more efficiently and with fewer delays.
In summary, spine-and-leaf architecture is a highly scalable network topology that provides high bandwidth, low and predictable latency, and greater predictability on STP blocked ports. It is a popular choice for data center and cloud computing environments.