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Cluster and storage switches

Review cabling and configuration considerations

Contributors netapp-yvonneo
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Before configuring your Cisco 9336C-FX2 switch, review the following considerations.

Support for NVIDIA CX6, CX6-DX, and CX7 Ethernet ports

If connecting a switch port to an ONTAP controller using NVIDIA ConnectX-6 (CX6), ConnectX-6 Dx (CX6-DX), or ConnectX-7 (CX7) NIC ports, you must hard-code the switch port speed.

(cs1)(config)# interface Ethernet1/19
For 100GbE speed:
(cs1)(config-if)# speed 100000
For 40GbE speed:
(cs1)(config-if)# speed 40000
(cs1)(config-if)# no negotiate auto
(cs1)(config-if)# exit
(cs1)(config)# exit
Save the changes:
(cs1)# copy running-config startup-config

See the Hardware Universe for more information on switch ports.

25GbE FEC requirements

FAS2820 e0a/e0b ports

FAS2820 e0a and e0b ports require FEC configuration changes to link up with 9336C-FX2 switch ports. For switch ports e0a and e0b, the fec setting is set to rs-cons16.

(cs1)(config)# interface Ethernet1/8-9
(cs1)(config-if-range)# fec rs-cons16
(cs1)(config-if-range)# exit
(cs1)(config)# exit
Save the changes:
(cs1)# copy running-config startup-config

On the 9336C-FX2 switch, the Ternary Content Addressable Memory (TCAM) resources configured in the configuration utilized by the switch are exhausted.

See the Knowledge Base article Ports do not link up on Cisco Nexus 9336C-FX2 due to TCAM resources for details on how to resolve this issue.