Connection between Nexus 3548 and 2960X bidi connection not working

[Deessing]

Link doesn't come up.

Nexus 3548

=========

Ethernet1/1
transceiver is present
type is 10Gbase-LR
name is SXX
part number is SFP-10G-BX
revision is --
serial number is C1909234024
nominal bitrate is 10300 MBit/sec
Link length supported for 9/125um fiber is 10 km
cisco id is 3
cisco extended id number is 4

switch# show interface status | inc 1/1
Eth1/1 -- notconnec 1 auto auto 10Gbase-LR

Catalyst 2960X

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

NAME: "TenGigabitEthernet1/0/2", DESCR: "SFP-10GBase-LR"
PID: SFP-10G-BXD-I , VID: V01 , SN: C1909234025

Te1/0/2 notconnect 1 full 10G SFP-10GBase-LR

[Reza Sharifi]

2960x switches don't support 40Gig using BiDi.

https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/40-gigabit-modules/white-paper-c11-732764.html

HTH

[julian.bendix]

Hey,

can you please post the output of the following commands:

Nexus:
#show int eth 1/1
#show run int eth 1/1

Catalyst:
#show int Te 1/0/2
#show run int Te 1/0/2

Best regards
Julian!