PA-VM in AWS shows interface speed and duplex as 'unknown'

PA-VM in AWS shows interface speed and duplex as 'unknown'

1976
Created On 04/25/23 18:14 PM - Last Modified 06/30/25 12:29 PM


Symptom


  • Interfaces show as unknown speed and duplex in CLI
name                    id    speed/duplex/state            mac address
-------------------------------------------------------------------------------
ethernet1/1             16    ukn/ukn/up                    02:57:2a:6e:26:3c
ethernet1/2             17    ukn/ukn/up                    02:e2:c2:a4:08:1e


Environment


  • Palo Alto VM Firewall
  • Supported PAN-OS
  • AWS environment


Cause


  • PAN-OS uses "dpdk" library functions to get the link speed and duplex in AWS environment.
  • In the "dpdk" code the link speed is set to "NONE" for ena drivers.
  • PAN-OS gets these values and display the speed as none.


Resolution


  1. The behavior is expected as the PAN-OS relies on dpdk drivers to get the speed.
  2. This issue is only cosmetic and can be ignored. 


Additional Information




 



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