[c-nsp] SFPs (Third party) - ordered "standard" LH, but got "ZX"

[Jared Mauch]

Cisco does a poor job of reading the SFF MSA fields from their own optics let alone
what they describe as “3rd party”.

You may find it easier to use something to read/validate the optics yourself
if that works for your logistics.  (shameless plug: i have something that might
be interesting showing you within this space, contact me off-list).

There’s plenty of people who read and implement the SFF specification properly
so reporting the bug against the platform and asking why there isn’t just
a common library is where I would drive your discussion.

This is very generic code that is 75% cut+paste from the SFF-8472, SFF-8024,
SFF-8636 tables.  8431, 8690, 8079 also cover some other details that may be
useful.

- Jared

> On Jul 6, 2015, at 7:32 AM, CiscoNSP List <CiscoNSP_list at hotmail.com> wrote:
> 
> 
> Thanks Nic - Ive already contacted them earlier....awaiting there response.
> 
> 
> Cheers.
> 
> 
> 
> ________________________________________
> From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> on behalf of Nick Hilliard <nick at foobar.org>
> Sent: Monday, 6 July 2015 9:26 PM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] SFPs (Third party) - ordered "standard" LH, but got "ZX"
> 
> On 06/07/2015 12:22, CiscoNSP List wrote:
>> So, it would "appear" that they are all LH....hopefully someone can
>> confirm based of the TX/RX readings I provided?
> 
> you need a multi-frequency light meter to confirm this.
> 
> I would contact the transceiver supplier and ask them to confirm the situation.
> 
> Nick
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