Does the F2 linecard (N7k-F248XP-25) on Nexus 7010 support Layer 3?

Answered Question
Jan 26th, 2012

Hi All,

I am sure that F1 linecards on Nexus weren’t able to support L3 functionality, so my query is does the F2 linecard (N7k-F248XP-25) on Nexus 7010 support Layer 3?

Regards,

Mayank

I have this problem too.
0 votes
Correct Answer by nkarpysh about 2 years 2 months ago

Hello,

Yes F2 does support both L2 and L3 (plus some other additional functions).

You may check specifications here:

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

and here:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/at_a_glance_c45-689339.pdf

One restriction - F2 can't work with M1 or F1 line cards in same VDC, so F2 line cards should be set in separate VDC.

Hope this helps,

Nik

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Correct Answer
nkarpysh Thu, 01/26/2012 - 19:42

Hello,

Yes F2 does support both L2 and L3 (plus some other additional functions).

You may check specifications here:

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

and here:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/at_a_glance_c45-689339.pdf

One restriction - F2 can't work with M1 or F1 line cards in same VDC, so F2 line cards should be set in separate VDC.

Hope this helps,

Nik

salvadorquintanilla Fri, 09/06/2013 - 08:50

Hi, Im know that this is resolved but i have a f2e Card

Model:                 N7K-F248XP-25E

Type (SFP capable):    1000base-SX

and i can not configure an interface as l3

NX7K-1-VDC-3T-S1-L3FP(config)# interface ethernet 7/2

NX7K-1-VDC-3T-S1-L3FP(config-if)# no switchport

ERROR: Ethernet7/2: requested config change not allowed

whats the problem??

Software

  BIOS:      version 2.12.0

  kickstart: version 6.2(2)

  system:    version 6.2(2)

  BIOS compile time:       05/29/2013

  kickstart image file is: bootflash:///n7000-s2-kickstart-npe.6.2.2.bin

  kickstart compile time:  7/9/2013 20:00:00 [08/22/2013 04:51:27]

  system image file is:    bootflash:///n7000-s2-dk9.6.2.2.bin

  system compile time:     7/9/2013 20:00:00 [08/22/2013 08:07:03]

Hardware

  cisco Nexus7000 C7010 (10 Slot) Chassis ("Supervisor Module-2")

  Intel(R) Xeon(R) CPU         with 12224956 kB of memory.

dgledhill Wed, 09/25/2013 - 02:14

Salvador,

I had the same issue. It seems to be how the card is configured in the admin VDC. By default I believe it's in L2 only mode.

The most likely cause is that the default VDC type is M1/F2E and you need to  convert that to F2E only VDC(vdc limit-resource module-type ) if you want to  operate your F2E line card in Layer 3 mode.

to confirm: sh vdc

and if  this is the case:

(All from within the admin VDC).

conf t

vdc xyz  <<< (Note, not 'switchto' vdc)

limit-resource module-type  f2e

Then follow the instructions regarding 'rebind interface'. All physical interfaces need to be re-initialised in order to pickup their new role. Some of the physical interface commands will change slighlty too. 'Rebind Interface' is also run from the admin VDC, not the production VDC.

After this, all physical interfaces will be L3 by default, not L2 as before. You can switch them back to L2 with the 'switchport' interface command. Much like a L3 6500 from here on out. L3 routed inerfaces and SVI's configured in the traditional way.

Dave.

David Vasquez Fri, 01/24/2014 - 09:23

I was having an issue configuring interface VLANs (SVI). I could create the SVI, but when I did a "no shutdown" then a "show interface" it was "down (Non-routable VDC mode)." I have the appropriate licenses installed. I then tried to change one of my switchports to a routed port, just like Salvador, but that did not work. I found this post and limited the module type to f2e (previously was allowing m1 m1xl m2xl f2e), recreated the interface VLAN, did a "no shut," it came "up/up," and I was able to ping across my trunk.

Thanks a bunch Dave!

dgledhill Tue, 02/04/2014 - 05:51

Glad it helped you, David!

Slightly obscure, and specific to Nexus, so though it was worth sharing.

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Posted January 26, 2012 at 7:11 PM
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