Hi,
I am trying to connect a N4032 switch to a Force10 MXL chassis switch using QSFP+ modules and a 40G DA cable. Now the problem I have is that when I plug the 40G QSFP DA cable in I don't get a link, both switches show that the QSFP+ Optic has been inserted, and that the optic is supported on both switch models.
The MXL is on firmware 9.8.0.0 and the N4032 is on 6.2.1.6.
The show slot command on the N4032 shows the QSFP card:
Admin Power Configured Card
Slot Status State State Model ID Pluggable
----- ------ ------- ------- -------------------------------- ---------
1/0 Full Enable Enable Dell Networking N4032 No
1/1 Full Enable Enable Dell QSFP Card Yes
The QSFP+ optic is plugged into port Fo1/1/1 on the N4032 and the show interface status command returns following:
Admin Physical Physical Link Link LACP Flow
Intf Type Mode Mode Status Status Trap Mode Mode
--------- ------ ------- ---------- ---------- ------ ------- ------- -------
Te1/0/1 Enable Auto 10G Full Up Enable Disable Active
Te1/0/2 Enable Auto 10G Full Up Enable Disable Active
Te1/0/3 Enable Auto 10G Full Up Enable Disable Active
Te1/0/4 Enable Auto Down Enable Disable Inactive
Te1/0/5 Enable Auto Down Enable Disable Inactive
Te1/0/6 Enable Auto Down Enable Disable Inactive
Te1/0/7 Enable Auto 10G Full Up Enable Disable Active
Te1/0/8 Enable Auto 10G Full Up Enable Disable Active
Te1/0/9 Enable Auto Down Enable Disable Inactive
Te1/0/10 Enable Auto Down Enable Disable Inactive
Te1/0/11 Enable Auto 10G Full Up Enable Disable Active
Te1/0/12 Enable Auto 10G Full Up Enable Disable Active
Te1/0/13 Enable Auto Down Enable Disable Inactive
Te1/0/14 Enable Auto Down Enable Disable Inactive
Te1/0/15 Enable Auto 10G Full Up Enable Disable Active
Te1/0/16 Enable Auto 10G Full Up Enable Disable Active
Te1/0/17 Enable Auto 10G Full Up Enable Disable Active
Te1/0/18 Enable Auto Down Enable Disable Inactive
Te1/0/19 Enable Auto Down Enable Disable Inactive
Te1/0/20 Enable Auto Down Enable Disable Inactive
Te1/0/21 Enable Auto 1000 Full Up Enable Disable Active
Te1/0/22 Enable Auto 1000 Full Up Enable Disable Active
Te1/0/23 Enable Auto 1000 Full Up Enable Disable Active
Te1/0/24 Enable Auto Down Enable Disable Inactive
Fo1/1/1 Enable Auto Down Enable Disable Inactive
Fo1/1/2 Enable 40G Full Down Enable Disable Inactive
Te1/1/1 Enable 10G Full Detach Enable Disable N/A
Te1/1/2 Enable 10G Full Detach Enable Disable N/A
Te1/1/3 Enable 10G Full Detach Enable Disable N/A
As you can see the switch does not even pick up the speed of the optic. Now if I take the same cable and plug it between the 2 x N4032 switches - the ports immediately show a link.
The logs from the MXL show the QSFP optic in Fo0/33, it shows the admin state of the ports as up, but the interface state remains down. Now if I take the same DA cable and plug it between the 2 MXL's in the chassis, the interface state changes to up almost immediately. The two MXL's are configured in a VLT, but I have tried to get the link up both with the VLT and without the VLT, does not work either way.
This shows that the DA cables are fully functional, the ports I am plugging into are functional - yet when one end of cable plugged into the N4032 and other end into the Force10 MXL, the link does not come up.
I have the show tech-support output from all 4 switches, if needed.
Thanks
Dave