Users Guide

Figure 5. Type 3: Medium Distributed Core Fabric Design

Use the Type 3: Medium Distributed Core design if:

• You require a 40 Gb fabric interlink (fabric links) bandwidth between the spines and leaves.

• The current and planned uplinks and downlinks on the leaves for your distributed core fabric are less

than or equal to 1536 ports.

• The leaves act as a switch or ToR-leaf switch. Within the ToR, the protocol can be either VLAN or

VLAN and LAG.

Each Z9000 spine (S6000 spine) for the Type 3: Medium Distributed Core design has the following:

• 640 Gigabit of interlink (fabric links) maximum capacity to the spine (16 x 40 Gig)

• 640 Ethernet ports for WAN connectivity (10 Gig)

Each S4810 leaf for the Type 3: Medium Distributed Core design has the following:

• 160 Gb of interlink (fabric links) maximum capacity to the spine (4x 40 Gig)

• 48 Ethernet ports for WAN connectivity (10 Gb)

Type 4: Small Distributed Core Fabric

Use the Type 4: Small Distributed Core design when:

• You require a fabric interlink (fabric links) bandwidth between the spines and leaves of 10 Gb.

• The current and planned uplinks and downlinks on the leaves for your core are less than or equal to

960 ports.

• The maximum port count for a Type 4: Small Distributed Core fabric with an OS ratio of 3:1 is 768. For

an OS ratio of 5:1, the maximum port count is 896.

• The leaves act as a switch or ToR-leaf switch. Within the ToR, the downlink protocol can be either

VLAN or VLAN and LAG.

Supported Fabric Types