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To configure bandwidth and port count for the switches in the fabric:

1. In the Bandwidth Specification:

a) Select the uplink bandwidth (10 Gb or 40 Gb) using the Uplink Bandwidth pull-down menu.

b) Select the downlink bandwidth (1 Gb, 10 Gb, or 40 Gb) using the Downlink Bandwidth pull-down menu.

– When you select the 1 Gb Downlink Bandwidth option, the AFM supports deployment topologies with the S55

and S60 switches on the access side.

– When you select the 10 Gb Downlink Bandwidth option, the AFM supports all the deployment topologies with

the S4810 and S4820T switches on the access side.

– When you select the 40 Gb Downlink Bandwidth option, the AFM supports deployment topologies with the

Z9000 and S6000 switches on the access side.

2. In the Number of edge ports required by the fabric

a) In the Uplink Ports Current column, enter an even number of uplink ports (connections to the WAN) required by

the fabric for initial deployment. The minimum number of uplinks is 2. One uplink is for redundancy. For a 10 Gb

bandwidth, AFM supports 2 to 32 uplinks. For a 40 Gb Bandwidth, AFM supports 2 to 8 uplinks.

* For a Layer 2 VLT fabric and Layer 3 with Resiliency (Routed VLT) fabric, an edge port link (uplinks) from the

aggregation or core switches that connect outside the fabric. For a 3 tier it is core, for a 2 tier it is

aggregation.

* For Layer 3 distributed core, an edge port link (uplinks) on the first two leaves that connects to the edge

WAN, which typically connects to an internet service provider (ISP).

b) In the Downlink Ports Current column, enter an even number of downlink ports (2 to the maximum number of

available ports) required by the fabric for initial deployment. The default is 2 downlink ports.

c) In the Uplink Ports Future column area, enter the number of uplink ports (connections to the WAN) required by

the fabric for future expansion of the fabric. If the future ports are not reserved, you cannot expand the fabric in

the future.

d) In the Downlink Ports Future column area, enter an even number of downlink ports (connections to the servers,

switches, or ToR) required by the fabric for future expansion of the fabric.

NOTE: When you select the Blade switch (MXL) deployment option in the Fabric Name and Type screen,

the Bandwidth and Port Count screen displays a Blade Switch Pairs option instead of a Downlink Ports

option in the Number of edge ports required by the fabric area.

3. Review the values and then click the Next button to go to the Deployment Topology screen.

Deployment Topology Use Cases

Use the following use cases as a guide to select a deployment topology.

• Use Case 1: 1 Tier Layer 2 Fabric

• Use Case 2: 1 Tier Layer 3 with Resiliency (Routed VLT)

• Use Case 3: 2 tier Layer 3 Distributed Core

• Use Case 4: 2 Tier Layer 3 Resiliency (Routed VLT)

• Use Case 5: 3 Tier Layer 2

• Use Case 6: 3 Tier Layer 3 Resiliency (Routed VLT)

Use Case 1: 1 Tier Layer 2 Fabric

When you select a 1 Tier Layer 2 fabric:

• The uplinks between the 2 aggregation switches and external switch (WAN) supports the Layer 3 protocol (OSPF,

iBGP or eBGP).

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Dell Active Fabric Manager Guía de usuario Pagina 55