Re: MACsec SFP

[Glen Turner <gdt () gdt id au>]

On 30 Jun 2014, at 3:47 pm, Saku Ytti <saku () ytti fi> wrote:

> On (2014-06-30 13:28 +0930), Glen Turner wrote:
>
> > After the SFF Committee specifies the registers the operating system vendors or vendors of devices would then add 
> > commands to support to toggle the I2C needed to program those registers with MACsec keys, etc.
>
> This is what I tried to tackle, this creates chicken/egg scenario, no one is
> buying optic, because you can't program it from your router, and you can't
> program it in your router, as no one is using the optic and vendor won't put
> development hours on it.
> If instead there would be standardized (DHCP option like) system to code
> arbitrary value to arbitrary location, you could code the feature, without
> router understanding what it is, after a while, syntactic sugar might be added
> for convenience.

What you really want isn’t DHCP-like, but simple AND-mask OR-set register handling. You’d provide your customers with 
the magic numbers.

interface …
 gbic-register [if REGISTER AND-MASK VALUE]… [set REGISTER AND-MASK OR-VALUE]…
 gbic-register …

Assuming that the GBIC programming doesn’t change PHY requirements you are done.

-- 
 Glen Turner <http://www.gdt.id.au/~gdt/>