Page 7 - 2022-Data Center Solution Bro.

Data Center Typical Leaf-and-Spine Solution

Leaf-and-spine Topology

In a leaf-and-spine topology, every leaf switch is connected to With east-west traffic growing, operators need low-latency,
the spine switches in a mesh topology. The down links of leaf optimized traffic flows to increase network performance. A leaf-
switches connect to servers, and the uplinks connect directly to spine network architecture makes sure that traffic has to cross
spine switches or the network core. The spine switches are the the same number of devices to get to the next destination. This
backbone of the network and are responsible for interconnecting approach provides load balancing, the overall traffic becomes
all leaf switches. Packets are allocated randomly in the entire predictable and IT managers obtain a greater control over the
network, so traffic is evenly distributed among the top-of-rack network.
switches. If any top-of-rack switch fails, packets are distributed
to other switches for processing.

In addition, a leaf-spine architecture provides better scalability.
If a network is overloaded, or operators need to expand the
capacity to serve more subscribers, additional switches can
easily be added to the topology. This not only increases the
total bandwidth, but also reduces the OPEX of network
expansion by optimizing the process of scaling the network.
A leaf-spine network with only two layers provides a flatter,
simpler, and horizontal network solution with agility and
cost-saving.

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