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Maniphest T8170

VPP: 'show vpp ipfix' unhandled exception when vpp is not enabled
Closed, ResolvedPublicBUG
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Description

Executing show command with no vpp enabled:

vyos@vyos:~$ sh vpp ipfix 
Possible completions:
  collectors            Show IPFIX collectors
  interfaces            Show IPFIX interfaces
  table                 Show IPFIX table

      
vyos@vyos:~$ sh vpp ipfix interfaces 
Traceback (most recent call last):
  File "/usr/libexec/vyos/op_mode/vpp.py", line 414, in <module>
    res = vyos.opmode.run(sys.modules[__name__])
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/vyos/opmode.py", line 312, in run
    res = func(**args)
          ^^^^^^^^^^^^
  File "/usr/libexec/vyos/op_mode/vpp.py", line 375, in show_ipfix_interfaces
    return VPPShow().ipfix_interfaces(raw)
           ^^^^^^^^^
  File "/usr/libexec/vyos/op_mode/vpp.py", line 72, in __init__
    self.vpp = VPPControl()
               ^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/vyos/vpp/control_vpp.py", line 109, in __init__
    raise VPPIOError(2, 'Cannot connect to VPP API')
vpp_papi.vpp_papi.VPPIOError: [Errno 2] Cannot connect to VPP API

Details

Version
2026.01.05-0023-rolling
Is it a breaking change?
Perfectly compatible
Issue type
Bug (incorrect behavior)

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Event Timeline

a.kudientsov created this task.Jan 11 2026, 3:09 PM
pasik subscribed.Jan 11 2026, 7:03 PM
Viacheslav triaged this task as Normal priority.Jan 12 2026, 8:54 AM
Viacheslav added a parent task: T7070: VPP related bugs the root task.
Viacheslav changed the task status from Open to In progress.Jan 12 2026, 1:51 PM
Viacheslav claimed this task.
Viacheslav added a comment.Jan 12 2026, 2:16 PM

PR https://github.com/vyos/vyos-1x/pull/4941

vyos@r14:~$ show vpp ipfix interfaces 
"vpp ipfix interface" is not configured
vyos@r14:~$ 
vyos@r14:~$ show vpp ipfix collectors 
"vpp ipfix collector" is not configured
vyos@r14:~$ 
vyos@r14:~$ show vpp ipfix table 
"vpp ipfix" is not configured
vyos@r14:~$
Viacheslav mentioned this in rVYOSONEX65a9f8642ed1: T8170: VPP fix IPFIX op-mode commands if VPP is not configured.Jan 13 2026, 1:54 PM
Restricted Repository Identity mentioned this in rVYOSONEX1eeb8e5776e1: Merge pull request #4941 from sever-sever/T8170.Jan 13 2026, 1:54 PM
Viacheslav closed this task as Resolved.Jan 16 2026, 5:07 PM
Viacheslav moved this task from Need Triage to Completed on the VyOS Rolling board.
dmbaturin added a project: VyOS 1.5 Circinus (2026.02).Feb 12 2026, 6:29 PM