Cisco Nexus 9300 missing ethernet interfaces

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maxxus
Posts: 11
Joined: Wed May 17, 2023 6:35 pm

Cisco Nexus 9300 missing ethernet interfaces

Post by maxxus » Tue May 23, 2023 9:51 am

Hi!
I ran into a very strange problem:
Ethernet Interfaces disappeared after reboot (Stop/Start nodes):

Code: Select all

n9k# show int description 

-------------------------------------------------------------------------------
Interface                Description                                            
-------------------------------------------------------------------------------
mgmt0                    --

-------------------------------------------------------------------------------
Interface                Description                                            
-------------------------------------------------------------------------------
Vlan1                    --
Vlan222                  vlan222
Vlan333                  vlan333
Vlan444                  vlan444


n9k#       show int status

--------------------------------------------------------------------------------
Port          Name               Status    Vlan      Duplex  Speed   Type
--------------------------------------------------------------------------------
mgmt0         --                 connected routed    unknown unknown --         

--------------------------------------------------------------------------------
Port          Name               Status    Vlan      Duplex  Speed   Type
--------------------------------------------------------------------------------
Vlan1         --                 down      routed    auto    auto    --
Vlan222      vlan222      routed    auto    auto    --
Vlan333      vlan333   down      routed    auto    auto    --
Vlan444       vlan333   down      routed    auto    auto    --

They are not in the config either
Logs: n9k %$ VDC-1 %$ %KERN-0-SYSTEM_MSG: [ 170.433321] pci_rescan_init: - kernel

Another same node with the same image in the same lab booted fine.
Has anyone seen such a problem?

terrylw64
Posts: 12
Joined: Wed Mar 21, 2018 9:13 pm

Re: Cisco Nexus 9300 missing ethernet interfaces

Post by terrylw64 » Wed May 24, 2023 3:30 am

Are you staggering startups? I've ran into problems with heavy nodes having issues when starting more than one at the same time. Such as popping up into the ''loader>'' prompt. I find if I stagger the startups on the heaver nodes, it helps to prevent strange oddities.

I'm running bare-metal on a HP Proliant, with 128 GB of RAM, Dual Xeron Processors @ 2.40 Ghz.

maxxus
Posts: 11
Joined: Wed May 17, 2023 6:35 pm

Re: Cisco Nexus 9300 missing ethernet interfaces

Post by maxxus » Wed May 24, 2023 6:04 am

Thanks!
I will try to do the same

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