[c-nsp] is a DWDM SFP a DWDM SFP?

Scott McGrath mcgrath at fas.harvard.edu
Wed Nov 25 11:17:56 EST 2009


I can see their point especially in SP networks and to keep the 
counterfeit optics at bay
but we have the same problem CSCO does not make the optics we need in 
many cases
and in the LAN environment it makes even less sense,    As unless a 
optic is egregiously
bad it generally will not matter but a device down will...

Don't SUPPORT third party optics but give us the option to use them 
without resorting
to hacks.    What's even worse is that most of CSCO's optics are indeed 
Finisar optics
with different firrmware. 

Justin Shore wrote:
> Scott McGrath wrote:
>   
>> Or Cisco could do something RADICAL and actually support the industry 
>> standard optics model like they USED to
>> for GBIC's    
>>     
>
> I can understand their position on 3rd-party optics not meeting spec and 
> not inter-opting well.  I've seen that many times myself on 3rd-party 
> optics.  Sure there are standards but not everyone reads the standards 
> in the same way and there isn't a CableLabs-like standards body to 
> certify compatibility of optics that I know of.  Still Cicso could pick 
> a major vendor or two like Finisar or Champion and partner with them to 
> produce 3rd-party optics that they'll allow in their chassis without the 
> hack workarounds.  Cisco doesn't make all the optics that I need.  I 
> need really long single strand optics and Cisco stops at 10k.  I need 
> 20k, 40k, and 80k at a minimum.  I understand that those optics wouldn't 
> be a huge seller for Cisco but at the very least they could partner with 
> companies that make the optics that Cisco doesn't.  By not doing this 
> SPs are forced to cobble together workarounds using media converters or 
> budget optic transport gear.  Or pick another vendor that doesn't have a 
> problem with 3rd-party optics and/or makes optics in the lengths SPs need.
>
>   
>> Otherwise what is the point of a standardized PHY - which ALL other 
>> vendors support,   We might as well
>> go back to the days of Cabletron MIM's and their ilk.
>>     
>
> Well, not all other vendors support 3rd-party optics.  Fujitsu doesn't. 
>   During an RFP Tellabs told us that they don't.  I've been told that 
> Juniper is the same way.
>
> Cabletron.  Now that brings back memories...from this past weekend 
> trying to clean out my garage.  Anyone want a good deal on some 
> 2E42-27Rs?  :-)
>
> Justin
>
>
>
>   



More information about the cisco-nsp mailing list