C9300-NM-8X

[D@mon123]

HI

The interfaces does not seem to auto-negotiate to 1G although i have 1g sfp installed.

[D@mon123]

Cannot ping gateway.

switchport mode is trunk.

[D@mon123]

C9300-24P

IOS Version 16.8.1a 

[Mark Malone]

Thats not the same issue as original post due to negotiation and your not providing enough information to tshoot either way

what gateway IP , where is it on same switch or upstream on another device ?
is the trunk formed and all vlans passing ?
whats connected to the port t1/1/2 and whats connected to it , pc , vm andother switch etc ?

[Leo Laohoo]

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D@mon123 wrote:

IOS Version 16.8.1a 

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Upgrade the firmware.

[Deepak Kumar]

Hi,

Your issue and post both are seems different. Are you allowed all VLANs and native VLAN is also same?  Is system in correct vlan?