Dell Active Fabric Manager Betriebsanweisung PDF herunterladen (Seite 21)

switches, the switches communicate with the DHCP server to obtain a management IP Address based on the system

MAC Address. The DHCP server contains information about where to load the correct software image configuration

file for each type of switch from the TFTP/FTP site during BMP. For information about BMP, see DHCP Integration.

• Obtain the pool of IP addresses for the management port for each switch in the fabric.

• Obtain IP addresses (must be an even number) for the uplink configuration from the ISP service. The uplink port

number range is based on whether a 10 Gb or 40 Gb bandwidth is selected.

– For 10 Gb uplink bandwidth, AFM supports 2 to 32 uplinks.

– For 40 Gb uplink bandwidth, AFM supports 2 to 8 uplinks.

• Obtain IP addresses or VLAN ID for the downlink configuration for connecting to the server or ToR.

• Gather protocol configuration for uplinks and downlinks.

Conventional Core Versus Distributed Core

This section describes the differences between a conventional core and a distributed core.

Conventional Core

A conventional core is a three-tier network that is typically chassis based and is composed of the following:

• Core — The core layer routes traffic to and from the internet and the extranet. Redundancy and resiliency are the

main factors for high availability, which requires chassis-based core routers.

• Aggregation layer — The aggregation layer connects with top of rack (ToR) switches and aggregates the traffic into

fewer high-density interfaces such as 10GbE or 40GbE. This layer aggregates the traffic to the core layer.

• Access layer (ToR) — The access layer typically contains ToRs. A ToR is a small form-factor switch that sits on top

of the rack and allows all the servers in the rack to be cabled into the switch. A ToR has a small 1 to 2 rack unit (RU)

form factor.

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Dell Active Fabric Manager Betriebsanweisung Seite 21