[j-nsp] Juniper QFX 5100 - Second source of QSFP -and- VCF issues resolved... for now.

[Alain Hebert]

     Little update on this.

     While a lot of people reported excellent result with the same FS 
model, while we're very confident in FS products, I can get that link 
stable...

     Here our lab notes so far....

-----

     Our 2 Fiberstore QSFPP-40GBASE-LR4.

     Connected back to back

     With -10db/-12db pads to make sure to not burn them

         (still required?  we had auto-adjusting 10Gb in the past)

     And 0 traffic.

------

Model: qfx5100-48s-6q

Junos: 14.1X53-D42.3

------

Xcvr 48 REV 01 740-032986 JU49170311013 QSFP+-40G-LR4

     Laser output power                        :  0.437 mW / -3.60 dBm
     Laser receiver power                      :  0.040 mW / -14.03 dBm
     Laser output power                        :  0.758 mW / -1.21 dBm
     Laser receiver power                      :  0.048 mW / -13.22 dBm
     Laser output power                        :  0.743 mW / -1.29 dBm
     Laser receiver power                      :  0.043 mW / -13.62 dBm
     Laser output power                        :  0.646 mW / -1.89 dBm
     Laser receiver power                      :  0.036 mW / -14.38 dBm


Xcvr 49 REV 01 740-032986 JU49170311014 QSFP+-40G-LR4

     Laser output power                        :  0.992 mW / -0.04 dBm
     Laser receiver power                      :  0.048 mW / -13.19 dBm
     Laser output power                        :  1.315 mW / 1.19 dBm
     Laser receiver power                      :  0.098 mW / -10.08 dBm
     Laser output power                        :  1.094 mW / 0.39 dBm
     Laser receiver power                      :  0.109 mW / -9.62 dBm
     Laser output power                        :  0.945 mW / -0.25 dBm
     Laser receiver power                      :  0.061 mW / -12.13 dBm

------

     In between those log entries, the sync is stable 4x10Gbps.

May  5 04:42:04  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/49, 
flag:2, speed: 0, duplex:0
May  5 04:42:04  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/48, 
flag:2, speed: 0, duplex:0

May  5 04:42:05  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/49, 
flag:1, speed: 0, duplex:0
May  5 04:42:05  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/48, 
flag:1, speed: 0, duplex:0

May  5 08:57:41  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/49, 
flag:2, speed: 0, duplex:0
May  5 08:57:41  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/48, 
flag:2, speed: 0, duplex:0

May  5 08:57:42  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/49, 
flag:1, speed: 0, duplex:0
May  5 08:57:42  lab-evpn fpc0 UPDN msg to kernel for ifd:et-0/0/48, 
flag:1, speed: 0, duplex:0

-----
Alain Hebertahebert at pubnix.net    
PubNIX Inc.
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911http://www.pubnix.net     Fax: 514-990-9443

On 05/02/17 07:18, Alain Hebert wrote:
>     Hi,
>
>     Beside Juniper, anyone have some successful experience to share 
> about a second source of QSFP+-40-LR4?
>
>     All the optics tested from our usual rock solid providers ended up 
> flapping or spamming log message :(
>
>     Thank you for your time.
>
>     PS: Our QFX5100 VCF Fabric (6) is finally stable with the 
> preferred release of Junos, TLDR: You cannot get out of the Spine/Leaf 
> paradigm (contrary to initial documentation which also showed full 
> mesh and linked routing engines).  Also there was an issue with 1 
> forwarding-options.
>