[AusNOG] Megaport - Link Negotiation

[Lincoln Dale]

On Thu, Apr 24, 2014 at 2:02 PM, James Braunegg <james.braunegg at micron21.com
> wrote:

> If you have a Single mode 10gbit SFP+ (used in say a Brocade MLXe router,
> like what Megaport use)
>
>
>
> And plug this into a 1gbit SFP single mode (at the other end, i.e. your
> equipment) the service will connect and work at 1gbit perfectly ;-)
>

No it won't connect nor work.  There is no SFP+ that downrates to 1G speeds.

That said, its certainly possible for a vendor to manufacture a piece of
equipment that can take either SFP+ and SFP and operate SFP at 1G and 100M.
No idea if a Brocade MLXe SFP+ port can do that though or if Megaport use
SFP+ type transceivers for 10G.


cheers,

lincoln.
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