Dell Fabric Manager Dell Fabric Manager Deployment Guide 1.0.0 - Page 13

Selecting a Distributed Core Design Template, Type 1: Large Core Design

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• The uplinks or interlinks must be in area 0 for OSPF. • Interlink over-subscription ratio. NOTE: The Interconnect bandwidth link is fixed and based on the core type: • For a Type 1: Large Core and Type 2: Medium Core the interconnect bandwidth is 40 GbE. • For a Type 3: Small Core the interconnect bandwidth is 10 GbE. CAUTION: If you do not specify any additional links in the core design for future expansion in the Port Count screen: • Any future expansion requires rewiring the hardware. • IP addresses are not reserved. • You might have to bring down current switches to expand the core. For information on how to expand a core, see Using the Expand the Core Wizard. Selecting a Distributed Core Design Template Use the following table as a guide to select the appropriate distributed core design template. Core Design Template Spine device Leaf device Interlink over-subscription rate Max # of spine devices Max # of leaf devices Interconnect link bandwidth Max # of ports (10g) based on interlink over-subscription rate. Type 1-Large Core Z9000 Z9000 1:1 (default) 2:1 3:1 5:1 16 32 1 x 40 GbE link 1:1 - 2048 2:1 - 2720 3:1 - 3072 5:1 - 3392 Type 2- Medium Core Z9000 S4810 3:1 (default) 5:1 4 32 1 x 40 GbE link 3:1 - 1536 5:1 - 1696 Type 3 -Small Core S4810 S4810 3:1 (default) 5:1 4 16 1 x 10 GbE link 3:1 - 768 5:1 - 848 Type 1: Large Core Design With a Type 1: Large Core design, the Z9000 spines connect to the Z9000 leaves at a fixed 40 GbE line rate. The maximum number of leaves is based on the maximum number of ports on the spine, with the Z9000, 32 ports, as shown in the following figure. 13

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•
The uplinks or interlinks must be in area 0 for OSPF.
•
Interlink over-subscription ratio.
NOTE:
The Interconnect bandwidth link is fixed and based on the core type:
•
For a Type 1: Large Core and Type 2: Medium Core the interconnect bandwidth is 40 GbE.
•
For a Type 3: Small Core the interconnect bandwidth is 10 GbE.
CAUTION: If you do not specify any additional links in the core design for future expansion in the Port Count
screen:
•
Any future expansion requires rewiring the hardware.
•
IP addresses are not reserved.
•
You might have to bring down current switches to expand the core. For information on how to expand a core,
see
Using the Expand the Core Wizard
.
Selecting a Distributed Core Design Template
Use the following table as a guide to select the appropriate distributed core design template.
Core Design Template
Type 1-Large Core
Type 2- Medium Core
Type 3 -Small Core
Spine device
Z9000
Z9000
S4810
Leaf device
Z9000
S4810
S4810
Interlink over-subscription rate
1:1 (default)
2:1
3:1
5:1
3:1 (default)
5:1
3:1 (default)
5:1
Max #
of spine devices
16
4
4
Max # of leaf devices
32
32
16
Interconnect link bandwidth
1 x 40 GbE link
1 x 40 GbE link
1 x 10 GbE link
Max # of ports (10g) based on
interlink over-subscription rate.
1:1 – 2048
2:1 – 2720
3:1 – 3072
5:1 – 3392
3:1 – 1536
5:1 – 1696
3:1 – 768
5:1 – 848
Type 1: Large Core Design
With a Type 1: Large Core design, the Z9000 spines connect to the Z9000 leaves at a fixed 40 GbE line rate. The maximum
number of leaves is based on the maximum number of ports on the spine, with the Z9000, 32 ports, as shown in the
following figure.
13