N7K M1 vs F2 modules

[ctychan]

Hi,

Any expert had detailed info about N7K-M108X2-12L (M1) vs N7K-F248XP-25 (F2)?

Only some info from release note

http://www.cisco.com/en/US/docs/switches/datacenter/sw/6_x/nx-os/release/notes/60_nx-os_release_note.html

Integrating F2-Series Modules Into a Cisco Nexus 7000 Series System

The Cisco Nexus 7000 48-port 1/10 Gigabit Ethernet SFP+ I/O module (F2-Series) module is a low-latency, high-performance, high-density module that offers most Layer 2 and Layer 3 functions of Cisco NX-OS software. When integrating the F2-Series module into a Cisco Nexus 7000 Series system, observe the following guidelines:

•An F2-Series module requires its own F2-Series module VDC. This VDC is restricted to the F2-Series module; M1 and F1 ports cannot be in the F2-Series module VDC. The default VDC can also be configured as an F2-Series module VDC.

•If you boot up an unconfigured Cisco Nexus 7000 Series switch that contains only F2-Series modules, then the default VDC is automatically configured as an F2-Series module VDC.

•Some software features are not available on the F2-Series module in Cisco NX-OS Release 6.0(1). These include ACL Capture, ERSPAN, FCoE, GRE tunnels, LISP, MACSEC, MPLS, Netflow, online diagnostics, OTV, PIM-Bidir, and certain counters. Many of these features will be supported in future software releases; however, the F2-Series hardware does not support LISP, MPLS, and OTV, so these features will remain unavailable on the F2-Series module.

What is the routing table size and other limitations for F2 module in design consideration?

Thanks in advance!

[Oleksandr Nesterov]

Hello

Here is official data sheet for F2 module which contains hardware table sizes and other parameters.

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/data_sheet_c78-685394.html

Data sheet for M1 module:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/data_sheet_c78-574915.html

And here is list of available data-sheets for N7K platform:

http://www.cisco.com/en/US/products/ps9402/products_data_sheets_list.html

As for design - in each particular case recomendations will be different since there are many factors that will have an influence on maximum supported values.

[ctychan]

In F2 datasheet,

IPv4 entries	• 32,768
IPv6 entries	• 16,384

Does it mean "entries" = "routes"???

But in M1 datasheet, it used "roiutes".

Item	Non-XL Mode	XL Mode
IPv4 routes	128K	Up to 1M*
IPv6 routes	64K	Up to 350K*

[Oleksandr Nesterov]

Yes. Entries means routes.

F2 has less capacity since initialy it's designed as wire-speed switching module.

[sandevsingh]

Hi, is it true that if you have M1 and F2 cards (both is seperate VDCs), the layer-3 functionality on the F2 gets disabled?

[Leo Laohoo]

Hi, is it true that if you have M1 and F2 cards (both is seperate VDCs), the layer-3 functionality on the F2 gets disabled?

In the case of the F2e, yes.  It says so in the Release Notes.