Dell Active Fabric Manager Betriebsanweisung PDF herunterladen (Seite 22)

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 fabric 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 AFM views the distributed core as one logical switch.

NOTE: There are no uplinks on the spines. All the leaves have downlinks. The uplink should be configured in the

first two leaves.

Key Advantages

The key advantages of a distributed core architecture are:

• Simplified fabric

• Higher bandwidth

• Highly resilient

• Higher availability

• Low power consumption

• Less cooling

• Lower latency

• Lower cost

• Less rack space

• Easier to scale

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Dell Active Fabric Manager Betriebsanweisung Seite 22