[f-nsp] 10G-XFP-LR optics used on short links

[Jason Pope]

Eric,

I would look at the receiver limits; usually they are at or above the
transmit capabilities, so you shouldn't need an attenuator.  But, if
it makes you feel better to attenuate the transmit by 5 db or so,
there is never a problem with that.  Again, you shouldn't "have" to
attenuate that short of a distance.

jp

On Fri, Nov 21, 2008 at 9:24 PM, Eric Helm <helmwork at ruraltel.net> wrote:
> Hello, I'm working some XMR routers that only have 10G-XFP-LR optics
> available. There is one short link connecting to XMR routers of around 3
> meters. Should an attenuator be used on these links? I've looked at the
> output of 'show optics' and the XFPs are operating within a normal
> range. I'm concerned that some damage may occur to the XFPs in this case.
>
> Thanks,
> /Eric
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