Jonathan Lassoff jof at
Tue Jun 24 08:16:01 UTC 2014

On Tue, Jun 24, 2014 at 12:59 AM, Pieter Hulshoff <phulshof at> wrote:
> On 24-6-2014 8:37, Saku Ytti wrote:
>> On (2014-06-23 11:13 +0200), Pieter Hulshoff wrote:
>>> feature and market information for such a device, and I would welcome
>>> some
>>> feedback from interested people. Discussion about other types of smart
>>> SFPs
>>> would also be welcome. Feel free to contact me directly using the contact
>>> information below.
>> I'd do questionable things for subrate SFP, SFP which I can put to 1GE
>> port
>> and have 10M and 100M rates available. Or to 10GE port and get 1GE, 100M
>> and
>> 10M
>> Use case is network generation upgrade where you still have one or two
>> 100M
>> ports for MGMT ports etc.
> I've seen this request from others as well. Do you have any
> proposal/preference to limit the data rate from the switch?

Seems like it would be just like emulating a media convertor. Drop any
frames in excess of 100 Mbit? Perhaps buffer a little bit?

If using the interface for any protocols, configuration might need to
be made to adjust link costs.

More information about the NANOG mailing list