Users Guide

NOTE: With a Layer 2 VLT fabric, the uplinks come from the first two switches on the aggregation
side. For information about tiers, see Standard Fabric Design — Deployment Topology.
Table 8. Two Tier (1 Gb Downlinks)
DL
BW
ULBW Type DL Port
Range
AVG Access
VLTi
Capacity
FL BW A
& A
Possible Topologies
Aggregation Access
1 Gb 10 Gb Stacking 1 - 2640 2 * 40
Gb
NA 40 Gb S4810 S60
(12G or 24G)
1 Gb 10 Gb Stacking 1 - 2640 2 * 40
Gb
NA 40 Gb S4810 S55 (12G )
1 Gb 40 Gb Stacking 1 - 2496 2 * 40
Gb
NA 40 Gb S4810 S60
(12G or 24G)
1 Gb 40 Gb Stacking 1 - 2496 2 * 40
Gb
NA 40 Gb S4810 S55
(12G )
1 Gb 10 Gb Basic 1 - 2640 2 * 40
Gb
NA 20 Gb S4810 S60
1 Gb 10 Gb Basic 1 - 2640 2 * 40
Gb
NA 20 Gb S4810 S55
1 Gb 40 Gb Basic 1 - 2496 2 * 40
Gb
NA 20 Gb S4810 S60
1 Gb 40 Gb Basic 1 - 2496 2 * 40
Gb
NA 20 Gb S4810 S55
Use the following table as guideline to select the appropriate three tier Layer 2 VLT or Layer 3 with
Additional Resiliency (Routed VLT) fabric design for a 1 Gb ToR VLT deployment.
AVG = Aggregation VLTi Capacity
AVC = Access VLTi Capacity
CVG = Core VLTi Capacity
DL = Downlink
DL BW = Downlink Bandwidth
FL BW C A = Fabric Link Bandwidth between Core & Aggregation
FL BW AA = Fabric Link Bandwidth between Aggregation & Access
FL BW = Fabric Link Bandwidth
30
Supported Fabric Types