Re: Nexus 5K vPC Peer link 1Gb over OM2 Fiber

Even if it is possible, have you considred how much you are bottled necking
inter chassis data forwarding?

Marc Edwards
CCIE #38259

On Thu, Apr 4, 2013 at 9:41 AM, Ian Blaney <ian.blaney_at_gmail.com> wrote:

> Is it possible to create a vPC peer link on a pair of 5500 using 2 bundled
> 1Gb links. I am aware the documentation mentions 10Gb only. Do you get any
> sort of error message when you try to use 1Gb? Has anyone tried it?
>
> The reason I ask, and I know this is a long shot, is that we are planning
> to install 2 Nexus 5500 at our core/distribution layer and use the vPC
> feature. The 2 peers will be roughly 340m between each other and will be
> connected via an OM2 (50/125) MMF. The standard SFP-10G-SR SFP+ only
> supports a max distance of 26m over OM2 so is out of the question. I see a
> SFP-10G-LRM will support up to 220m and was hoping would stretch to 340m as
> these figures are usually on the conservative side. The SFP-10G-LRM is not
> mentioned in the SFP compatibility matrix for the Nexus 5K but I have seen
> some postings of people using it.
>
> Does anyone have any experience with the Nexus 5K and SFP-10G-LRM SFP or
> can suggest any other options or is the only option to upgrade to OM4
> fiber.
>
> Many thanks
> Ian
>
>
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Received on Thu Apr 04 2013 - 10:01:05 ART