N7K and Fabric Module

[2205_Romy]

Hello,

what is the amount of the fabric modules i need in my Nexus 7000?

And is the amount of the fabric modules dependent of the I/O modules?

Thanks.

[Chad Peterson]

Hello,

So the fabric module that we have on the nexus 7000 will supply 46gbps per slot for each module you add:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/ps9512/Data_Sheet_C78-437760.html

Depending on the modules you are using will dictate how many fabrics you need.  For example if you are using a N7K-M132XP-12L:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/data_sheet_c78-605622.html

It has 80gb backplane connection, so to get full capabilitys of the module, you need 2 fabric modules.  You would likely want 3 for N+1 redundancy.

However if you are using N7K-F132XP-15, it can make use of 230gb on the fabric...so for full capacity you would want 5 fabric modules:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/data_sheet_c78-605622.html

Overall just check the datasheet for the modules you are using and by looking at switch fabric interface speed you should be able to plan out the number of fabrics you'll need for your cards.

Hope that helps

Chad

[2205_Romy]

Hello Chad,

thanks, that was very helpful.

Have a great weekend.