[j-nsp] QSFP+ to SFP+ adapters

[Chuck Anderson]

Has anyone tried using QSFP+ to SFP+ adapters such as this one?  What software versions have you tried?

https://www.fs.com/products/72587.html

I'm testing these on QFX10002-36Q with 17.3R3-S7.2 and SFP+ 10G-LR modules.  The links come up and pass LLDP and IP traffic, but DOM doesn't work:

{master:0}
root at spine-1> show interfaces diagnostics optics xe-0/0/30:0 
Physical interface: xe-0/0/30:0
    Optical diagnostics                       :  N/A

{master:0}
root at spine-1> show interfaces diagnostics optics xe-0/0/31:0 
Physical interface: xe-0/0/31:0
    Optical diagnostics                       :  N/A

{master:0}
root at spine-1> show chassis hardware 
Hardware inventory:
Item             Version  Part number  Serial number     Description
  PIC 0                   BUILTIN      BUILTIN           36X40G
    Xcvr 30               NON-JNPR                       UNKNOWN
    Xcvr 31               NON-JNPR                       UNKNOWN


root at spine-1> show chassis pic fpc-slot 0 pic-slot 0 
FPC slot 0, PIC slot 0 information:
  Type                             36X40G
  State                            Online    
  PIC version                 2.47
  Uptime                         26 days, 40 minutes, 44 seconds

PIC port information:
                         Fiber                    Xcvr vendor       Wave-    Xcvr
  Port Cable type        type  Xcvr vendor        part number       length   Firmware
  30   unknown cable     n/a                                        n/a      0.0   
  31   unknown cable     n/a                                        n/a      0.0   


{master:0}
root at spine-1> show interfaces terse xe-*                        
Interface               Admin Link Proto    Local                 Remote
xe-0/0/30:0             up    up
xe-0/0/30:0.0           up    up   inet     10.0.0.1/30     
xe-0/0/30:1             up    down
xe-0/0/30:2             up    down
xe-0/0/30:3             up    down
xe-0/0/31:0             up    up
xe-0/0/31:0.0           up    up   inet     10.0.0.5/30     
xe-0/0/31:1             up    down
xe-0/0/31:2             up    down
xe-0/0/31:3             up    down