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

[Jonathan Brashear]

As you've shown, Juniper devices will recognize 3rd party SFPs.  However, about a year ago(if memory serves) they changed their T&C to not provide (technical) support for non-Juniper SFPs.  If you have a problem with the card that the 3rd party SFP resides on, chances are they're going to tell you to replace the SFP before anything else.

Network Engineer, JNCIS-M
> 214-981-1954 (office) 
> 214-642-4075 (cell)
> jbrashear at hq.speakeasy.net 
http://www.speakeasy.net
-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Bill Blackford
Sent: Wednesday, November 25, 2009 10:21 AM
To: Justin Shore; Scott McGrath
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] is a DWDM SFP a DWDM SFP?

I do not believe that Juniper keys their optics. My experience with this is limited though. I am able to get third-party optics to work just fine in EX switches.

bblackford at wsc-asw-02-1> show chassis hardware
Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                BH0208188142      EX3200-24T
FPC 0            REV 07   750-021261   BH0208188142      EX3200-24T, 8 POE
  CPU                     BUILTIN      BUILTIN           FPC CPU
  PIC 0                   BUILTIN      BUILTIN           24x 10/100/1000 Base-T
  PIC 1          REV 04   711-021270   AR0209216364      4x GE SFP
    Xcvr 0                NON-JNPR     FFX20H700284      SFP-SX
Power Supply 0   REV 02   740-020957   AT0508119769      PS 320W AC
Fan Tray                                                 Fan Tray

As you can see it identifies the Xcvr as non-Juniper.


On the Cisco side, I have a Vertex 1310M GLC-LH-SM that is working fine in a 3560G.

-b



--
Bill Blackford                   
Senior Network Engineer           
Technology Systems Group          
Northwest Regional ESD            

this message was composed using 100% recycled electrons

________________________________________
From: cisco-nsp-bounces at puck.nether.net [cisco-nsp-bounces at puck.nether.net] On Behalf Of Justin Shore [justin at justinshore.com]
Sent: Wednesday, November 25, 2009 7:53 AM
To: Scott McGrath
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] is a DWDM SFP a DWDM SFP?

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



_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/