HOW TO DISABLE AUTO-NEGOTIATION CISCO N9K-C9336C-FX2 10G SWITCHPORT

[GIBassment1]

Looking for recommendations as we have a compatibility issue with an AMD U200 40G card which is broken out to 4x SFP+ connections and then a QNA into a Cisco QSFP+ on the C9336C-FX2 switch. 

We are trying to disable auto-negotiation on the Cisco switch and get following error;

=======================================================

HDCI-NSWDDNGDF01C# show int eth1/15 | i Auto-N
  Auto-Negotiation is turned on  FEC mode is Auto

HDCI-NSWDDNGDF01C(config-if)# no negotiate auto
ERROR: cannot turn off auto-negotiate at 10G speed

The u200 card is proprietary code and they can't enable Auto-negotiation, so we have seeing unstable L2 in the network between these devices.

Any way to disable the auto-neg on the cisco side?

Thank-You for any guidance! 

[balaji.bandi]

Instead of no negotiation, setup the speed and check (like hardcode speed) especially nexus devices.

[GIBassment1]

Hello BB,

Thanks for your quick reply! Just to clarify what you have recommended, is this what you are suggesting? 

Here is the switchport config;

interface Ethernet1/15
  description M::US22727I-ORTD61B_clx0p1
  no cdp enable
  switchport
  switchport access vlan 582
  spanning-tree port type edge trunk
  no snmp trap link-status
  speed 10000
  duplex full
  storm-control broadcast level 5.00
  no shutdown

[GIBassment1]

Additional piece of information, when this L2 event occurs the MAC address from the Server (AMD U200 Card>SFP 10G Breakout>QNA>9336 QSFP+ Switchport) the Cisco doesn't report the MAC address in the connection for that link.

No MAC Address detected on Eth1/25 even if I can see the link from the switch showing as UP.

issue is that US22727I-ORTD64B_clx1p1_(clx4) not coming up after cold boot.

Here are the MAC addresses I am seeing for all connections into 64B:

HDCI-NSWDDNGDF01C#
Eth1/24       M::US22727I-ORTD64 connected trunk     full    10G     10Gbase-SR
Eth1/25       M::US22727I-ORTD64 connected trunk     full    10G     10Gbase-SR
Eth1/24       eth    10G     M::US22727I-ORTD64B_clx0p0
Eth1/25       eth    10G     M::US22727I-ORTD64B_clx1p0
*  572     dcae.0411.0480   dynamic  0         F      F    Eth1/24
*  572     dcae.0411.0490   dynamic  0         F      F    Eth1/25

HDCI-NSWDDNGDF01D#
Eth1/24       M::US22727I-ORTD64 connected trunk     full    10G     10Gbase-SR
Eth1/25       M::US22727I-ORTD64 connected trunk     full    10G     10Gbase-SR
Eth1/24       eth    10G     M::US22727I-ORTD64B_clx0p1
Eth1/25       eth    10G     M::US22727I-ORTD64B_clx1p1

*  582     dcae.0411.0481   dynamic  0         F      F    Eth1/24

No MAC Address detected on Eth1/25 even if I can see the link from the switch showing as UP.