daknetworks.com

racktables

cisco packet tracer

eve-ng

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Heirarchial Model - 3 tier

CORE
Catalyst 9500-x/9600
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9600-series-switches/nb-06-cat9600-series-data-sheet-cte-en.pdf

DISTRIBUTION/LAYER-3
Catalyst 4500-x/9500-x
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9500-series-switches/nb-06-cat9500-ser-data-sheet-cte-en.pdf

ACCESS
Catalyst C9200-48P
https://www.cisco.com/c/dam/en/us/products/collateral/switches/catalyst-9200-series-switches/nb-06-cat-mig-guide-cte-en.pdf

The selection of the CORE really depends on the number of ports and bandwidth needed. If it is a larger site/campus, then the 9600 will be required

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Heirarchial Model - Collapsed Core - 2 tier

CORE/DISTRIBUTION/LAYER-3
Catalyst 4500-x/9500
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9500-series-switches/nb-06-cat9500-ser-data-sheet-cte-en.pdf

ACCESS
Catalyst C9200-48P
https://www.cisco.com/c/dam/en/us/products/collateral/switches/catalyst-9200-series-switches/nb-06-cat-mig-guide-cte-en.pdf

If it is a smaller site/campus, then the CORE layer becomes redundant. There is no reason to send the traffic from the DISTRIBUTION layer to the CORE layer over 10G/25G/40G/100G just to have it, in turn, uplink that traffic to the firewall. Instead, just remove the CORE layer and let the firewall connection(s) become another port on DISTIBUTION switch.

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Spine/Leaf Model ToR

SPINE
Nexus 9500
https://www.cisco.com/c/en/us/products/switches/nexus-9000-series-switches/datasheet-listing.html

AGGREGATION
Nexus 5000/7000/9300
https://www.cisco.com/c/en/us/products/switches/nexus-9000-series-switches/datasheet-listing.html

LEAF - Top-of-Rack (Tor)
Nexus 3172TQ
https://www.cisco.com/c/en/us/products/collateral/switches/nexus-3000-series-switches/data_sheet_c78-729483.pdf

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Spine/Leaf Model EoR

SPINE
Nexus 9500
https://www.cisco.com/c/en/us/products/switches/nexus-9000-series-switches/datasheet-listing.html

AGGREGATION
Nexus 5500 End-of-Row (EoR)
https://www.cisco.com/c/en/us/products/switches/nexus-5000-series-switches/datasheet-listing.html

LEAF - Top-of-Rack (Tor)
Nexus 2000
https://www.cisco.com/c/en/us/products/switches/nexus-5000-series-switches/datasheet-listing.html

vxlan