[j-nsp] EX4550 and 3rd Party SFP-1GE-LX

[Alexandre Snarskii]

On Thu, Jun 06, 2013 at 03:57:54PM +0800, Joe Wooller wrote:
> Hey All, 
> 
> I was wondering if anyone out there has seen issues with 3rd party 
> 1Gig LX Optics on the EX4550.
> We have a bunch of 3rd party optics working fine in EX2200s, 3200s 
> and 4200s however when I stick them into the EX4550 it randomly likes 
> to fail (I can't seem to figure out the pattern). Sometimes it will 
> work and sometimes it wont.
> When it does fail however it seems to make the port inoperable until 
> the switch is rebooted. (It also appears to make other ports break too, 
> perhaps they are on the same PFE?). Even inserting a Genuine optic after 
> the port has failed produces the same error.

Interesting. We also encountered some "incompatibilities" with 
third-party optics on EX4550, however, with some differences: 
a) these incompatibilities was caused mostly by "color" (DWDM) 10Ge SFP+
(well, some 1ge-lx too). 
b) we observed no persistent effect of incompatibility - after changing SFP+ 
to another "more compatible" (however, still third-party) SFP/SFP+ port works
just fine without reboot.


> Without further ado here is the error it produces;
> 
> pr 10 04:44:45  sw01 chassism[1298]: ifcm_ifd_remove_vector: ifd ge-0/0/29 is_vcp 0 peer master
> Apr 10 04:44:48  sw01chassism[1298]: Error(2):I2C read of EEPROM failed for Port 14 at offset 0x0
> Apr 10 04:44:48  sw01chassism[1298]: KOPTICS(1215): Error reading xcvr eeprom for PIC 61515 port 14
> Apr 10 04:44:48  sw01chassism[1298]: XCVR: XCVR 14 EEPROM read Failed
> Apr 10 04:44:48  sw01chassism[1298]: xcvr_cache_eeprom: xcvr_read_eeprom failed - link:14 pic_slot:0
> Apr 10 04:44:49  sw01chassism[1298]: Error(2):I2C read of EEPROM failed for Port 14 at offset 0x0
> Apr 10 04:44:49  sw01chassism[1298]: KOPTICS(1215): Error reading xcvr eeprom for PIC 61515 port 14
> Apr 10 04:44:49  sw01.chassism[1298]: XCVR: XCVR 14 EEPROM read Failed
> 
> I would be interested to see if anyone else has encountered this?
> So far I can not replicate the issue with 3rd party Copper SPF;s or 
> 10Gig SFP+'s.
> 
> Cheers
> Joe
> 
> 
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