Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Nexus 7000 F2 Series Module Implementation

What would the the step and concerns be when introducing the F2 series modules to my current chassis?

  1. Do I need the fabric 2 module installed first before the installing I/O module?
  2. After inserting the I/O module do the ports go to vdc 0 for allocation?
  3. What else should I be considering?

Thanks in advance.

  • Other Data Center Subjects
15 REPLIES
Cisco Employee

Nexus 7000 F2 Series Module Implementation

Hello

1. You can insert F2 modules with Fab1- they are interoperable. But to get maximum throughoutput you will need to install Fab-2

2. If you have other non-F2 modules in the chassis - you won't see F2 ports in the show-run as F2 requires separate F2-VDC

http://www.cisco.com/en/US/docs/switches/datacenter/sw/6_x/nx-os/release/notes/60_nx-os_release_note.html#wp423808

3. You need to use at least NX-OS 6.0.1 release to have F2 support

HTH,

Alex

Hall of Fame Super Gold

Nexus 7000 F2 Series Module Implementation

Hey Alex,

Do you have the "logic" behind the reasoning that you can't mix F1, M1, and M2 cards with an F2? 

Cisco Employee

Nexus 7000 F2 Series Module Implementation

Currently I would say it's hardware limitations between previous modules and F2.

Regars,

Alex

Hall of Fame Super Gold

Nexus 7000 F2 Series Module Implementation

Currently I would say it's hardware limitations between previous modules and F2.

Thanks Alex but it doesn't make sense since you can't mix the 2nd generation card, like the M2, with the F2 cards.

I am curious to know why because I don't want to respond to a question like this with the answer "Because Cisco said so"  It makes me look stupid. 

Cisco Employee

Nexus 7000 F2 Series Module Implementation

Hi

Number 2 in names M2 and F2 - means only generation number. But both these cards have ompletely different hardware realization.

Reason why F2 is not compatible with all other modules is that it has different forwarding engine which is not compatible with engines of other cards while communicating through the fabric. So that's why F2 modules should be placed in separate VDC whete they will talk only with other F2 cards.

Regards,

Alex

Hall of Fame Super Gold

Nexus 7000 F2 Series Module Implementation

Reason why F2 is not compatible with all other modules is that it has different forwarding engine which is not compatible with engines of other cards while communicating through the fabric. So that's why F2 modules should be placed in separate VDC whete they will talk only with other F2 cards.

Thanks for the explanation, Alex.

Was the design intentional to make the F2's forwarding card incompatible to the F1, M1 and M2?

Cisco Employee

Nexus 7000 F2 Series Module Implementation

Unfortunately I'm not aware about this details.

Hall of Fame Super Gold

Nexus 7000 F2 Series Module Implementation

Ok.   Thanks Alex.

New Member

Re: Nexus 7000 F2 Series Module Implementation

There is a specific design issue on the ASIC used on the F2 module that prevents it from working with F1, M1 and M2.

Sent from Cisco Technical Support iPhone App

8005
Views
15
Helpful
15
Replies