Dell Fabric Manager Dell Fabric Manager Deployment Guide 1.0.0 - Page 8

Distributed Core, fabric, the distributed core architecture is more resilient and as a result - server

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Distributed Core A distributed core is a two-tier architecture composed of multiple switches interconnected to provide a scalable, highperformance network that replaces the traditional and aggregation layers in a conventional core. Switches are arranged as spines and leaves; the spines interlink (connect) the leaves together using a routing protocol. The leaves' edge ports connect to the switches, ToR switches, servers, other devices, and the WAN. The spines move traffic between the leaves bi-directionally, providing redundancy and load balancing. Together the spine and leaf architecture forms the distribute core fabric. This two-tier network design allows traffic to move more efficiently in the core at a higher bandwidth with lower latencies than most traditional three-tier networks. Because there is no single point of failure that can disrupt the entire fabric, the distributed core architecture is more resilient and as a result, there is less negative impact on the network when there is a link or node failure. The Dell Fabric Manager views the distributed core as one logical switch. NOTE: There are no uplinks on the spines. The following illustration shows a large distributed core deployment. 8

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Distributed Core
A distributed core is a two-tier architecture composed of multiple switches interconnected to provide a scalable, high-
performance network that replaces the traditional and aggregation layers in a conventional core.
Switches are
arranged as spines and leaves; the spines interlink (connect) the leaves together using a routing protocol. The leaves’
edge ports connect to the switches, ToR switches, servers, other devices, and the WAN. The spines move traffic
between the leaves bi-directionally, providing redundancy and load balancing. Together the spine and leaf architecture
forms the distribute core fabric.
This two-tier network design allows traffic to move more efficiently in the core at a higher bandwidth with lower
latencies than most traditional three-tier networks. Because there is no single point of failure that can disrupt the entire
fabric, the distributed core architecture is more resilient and as a result, there is less negative impact on the network
when there is a link or node failure.
The Dell Fabric Manager views the distributed core as one logical switch.
NOTE:
There are no uplinks on the spines.
The following illustration shows a large distributed core deployment.
8