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N2K-2248PQ requirements

Hi, 
Does anyone knows if there are any limitations using N2K-2248PQ fex?   
what are the requirement for the fex connection?  single uplink of fet-10G is enough (toward the N5k)?    how many of this fex can be connected to a single N5K-C5548P?


Many thanks , 

 

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What you need to remember

What you need to remember with all FEX models is that they don't perform any local switching. All traffic is sent to the parent switch that provides central forwarding and policy enforcement. See below:

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/layer2/502_n1_1m/b_Cisco_n5k_layer2_config_gd_rel_502_N1_1/Cisco_n5k_layer2_config_gd_rel_502_N1_1_chapter16.html

Is one uplink enough? That depends on how much traffic is being generated by the end devices connected to the FEX. This gives you no redundnancy if this single link fails. Furthermore as stated above since all processing is done on the parent switch, the more uplinks the better.

The 5548P supports up to 24 x FEXes or 16 if they are running in Layer 3 mode:

http://www.cisco.com/c/en/us/products/collateral/switches/nexus-2000-series-fabric-extenders/data_sheet_c78-507093.html

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