[j-nsp] 1000BASE-T SFP sets interface status "up" once inserted into EX4200-24F

[Peter Krupl]

Hi,

We have seen that, with 3rd party SFPs. After a lot of testing, we found one that works. You could off course just purchase the original ones.

FPC slot 0, PIC slot 0 information:
  Type                             24x 100 Base-FX/1000 Base-X Builtin
  State                            Online    
  Uptime                         59 days, 52 minutes, 35 seconds

PIC port information:
                          Fiber                    Xcvr vendor
  Port  Cable type        type  Xcvr vendor        part number       Wavelength
  22    GIGE 1000T        n/a   Methode Elec.      SP7041-M1-JN      n/a     
  23    GIGE 1000T        n/a   Methode Elec.      SP7041-M1-JN      n/a     



Kind Regards,
Peter Krupl
Siminn Danmark A/S



> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-
> bounces at puck.nether.net] On Behalf Of Martin T
> Sent: 05. November, 2010 01:32
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] 1000BASE-T SFP sets interface status "up" once inserted into
> EX4200-24F
> 
> I have few ProLabs GLC-T-C 1000BASE-T SFP's. If I insert this SFP into
> EX4200-24F switch, both Admin and Link status are immediately "up". Admin
> status should be "up" by default, but I find it odd, that Link status stays
> "up" as well even if there is no cable connected to the SFP.
> 
> When I insert the SFP, "show log messages" shows following error/warning:
> Oct  9 17:42:36   chas[727]: IFCM: no handler for command subtype 226
> 
> JUNOS version is 10.3R1.9 and switch model is EX4200-24F.
> 
> Any ideas, what might cause such odd behavior, where interface Link status
> is set "up" even if there is no cable connected to the port?
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