AW: Cisco Fabricpath

Florian Figula florian at
Tue Mar 15 11:26:58 UTC 2016

Hi Ulf,

I am currently running a fabric path setup with four Nexus 5548UP for a customer. We had several problems followed by mysterious packet loss when upgrading from NX-OS 5.2(1)N1(4) to 7.0(5)N1(1) in case of leap second update. Cisco TAC advised me to downgrade after the event on 1st of July in 2015 due to CSCuo56514. This Bug should first be fixed in 7.0(7)N1(1). Presently this is the recommended IOS-XE for N5K. My customer is currently running 5.2(1)N1(9) without any problems.



-----Ursprüngliche Nachricht-----
Von: NANOG [mailto:nanog-bounces at] Im Auftrag von Ulf Zimmermann
Gesendet: Samstag, 12. März 2016 22:37
An: Nicolas V <nicovpp59 at>
Cc: nanog at
Betreff: Re: Cisco Fabricpath

I have used it for a cage in one datacenter, it was built 2+ years ago. It hasn't been giving us problems, with the exception of several bad Cisco direct attached copper cables.

On Mon, Mar 7, 2016 at 7:55 AM, Nicolas V <nicovpp59 at> wrote:

> Hello,
> Does anyone already played with cisco fabricpath feature ? I want to 
> use it on my nexus 5548
> Is it working as easy as it seems ? No bugs / particular nx-os version... ?
> Thanks !
> Nicolas


Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-396-1764 You can find my resume at:

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