Posted on December 26, 2021 7:51 am
 |  Asked by David Ye
 |  50 views
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Trying to setup a host with Mellanox ConnectX-6 dual-port 100GbE adapter to a single 100G port from 7060CX-32S using 100G-2x50G QSFP28 splitter cable (Amphenol DAC NDARHJM203). Arista switch 100G port is configured as “speed forced 50gfull” or “speed auto 50gfull”. EOS CLI shows the ports are not connected.

Note: “service unsupported-transceiver <customer_name> <license_key>” was used to unlock 3rd party transceivers support

localhost(config)#show interfaces status
Port Name Status Vlan Duplex Speed Type Flags Encapsulation
Et1/1 notconnect 1 a-full auto 100GBASE-CR4
Et1/3 notconnect 1 a-full auto 100GBASE-CR4
Et2/1 notconnect 1 full 50G 100GBASE-CR4
Et2/3 notconnect 1 full 50G 100GBASE-CR4
Et3/1 notconnect 1 full 50G 100GBASE-CR4
Et3/3 notconnect 1 full 50G 100GBASE-CR4
Et4/1 notconnect 1 full 50G 100GBASE-CR4
Et4/3 notconnect 1 full 50G 100GBASE-CR4
Et5/1 notconnect 1 full 50G 100GBASE-CR4
Et5/3 notconnect 1 full 50G 100GBASE-CR4
Et6/1 notconnect 1 a-full auto 100GBASE-CR4
Et6/3 notconnect 1 a-full auto 100GBASE-CR4

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Posted by Salil Joshi
Answered on December 27, 2021 3:22 am

Hi,

Could you please upload the following output from the Arista switch for further investigation?

show version

show inventory

show interfaces Ethernet x/y hardware <<< put the interface name here

show interfaces Ethernet x/y hardware default

show interfaces Ethernet x/y phy detail

show interfaces Ethernet x/y transceiver properties

show interfaces Ethernet x/y transceiver detail

show interfaces Ethernet x/y phy detail

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