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cisco_ios_show_interfaces_switchport.textfsm (Does not parse interfaces after multiline VLAN list is encountered) #903

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mickyhale opened this issue Mar 17, 2021 · 1 comment
Closed

cisco_ios_show_interfaces_switchport.textfsm (Does not parse interfaces after multiline VLAN list is encountered) #903

mickyhale opened this issue Mar 17, 2021 · 1 comment

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@mickyhale
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ISSUE TYPE
  • Bug Report
TEMPLATE USING
Value Required INTERFACE (\S+)
Value SWITCHPORT (.+?)
Value SWITCHPORT_MONITOR (.+?)
Value SWITCHPORT_NEGOTIATION (.+?)
Value MODE (.+?)
Value ADMIN_MODE (.+?)
Value ACCESS_VLAN (\d+|unassigned)
Value NATIVE_VLAN (\d+)
Value VOICE_VLAN (\S+)
Value List TRUNKING_VLANS (\S+?)

Start
  ^Name: -> Continue.Record
  ^Name:\s+${INTERFACE}
  ^\s*Switchport:\s+${SWITCHPORT}$$
  ^\s*Switchport\s+Monitor:\s+${SWITCHPORT_MONITOR}$$
  ^\s*Operational\s+Mode:\s+${MODE}$$
  ^\s*Negotiation\s+of\s+Trunking:\s+${SWITCHPORT_NEGOTIATION}$$
  ^\s*Access\s+Mode\s+VLAN:\s+${ACCESS_VLAN}
  ^\s*Trunking\s+Native\s+Mode\s+VLAN:\s+${NATIVE_VLAN}
  ^\s*Voice\s+VLAN:\s+${VOICE_VLAN}
  ^\s*Trunking\s+VLANs\s+Enabled:\s+${TRUNKING_VLANS},\s*$$ -> Trunk
  ^\s*Trunking\s+VLANs\s+Enabled:\s+${TRUNKING_VLANS}$$
  ^\s+${TRUNKING_VLANS}$$
  ^\s*Administrative\s+Mode:\s+${ADMIN_MODE}$$
  ^\s*(?:Operational|Administrative)\s+(?:Trunking|Native\s+VLAN|private-vlan)
  ^\s*Voice\s+VLAN:
  ^\s*Pruning\s+VLANs
  ^\s*Capture\s+(?:Mode|VLANs)
  ^\s*Autostate\s+mode\s+exclude
  ^\s*Protected
  ^\s*Unknown\s+(unicast|multicast)
  ^\s*Vepa\s+Enabled
  ^\s*Appliance\s+trust
  ^\s*Operational\s+Dot1q\s+Ethertype
  ^\s*$$
  # Capture time-stamp if vty line has command time-stamping turned on
  ^Load\s+for\s+
  ^Time\s+source\s+is
  ^. -> Error

Trunk
  ^\s+${TRUNKING_VLANS},\s*$$ -> Start
  ^\s+${TRUNKING_VLANS}\s*$$
SAMPLE COMMAND OUTPUT
Name: Gi2/2/16
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: down
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 69 (Native_Edge)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none 
Administrative private-vlan mapping: none 
Operational private-vlan: none
Trunking VLANs Enabled: 586-589
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled

Name: Gi2/2/17
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: down
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none 
Administrative private-vlan mapping: none 
Operational private-vlan: none
Trunking VLANs Enabled: 501,504,517,522,526,529,556,567,568,577-579,582,583,
     595,980,981,993,995,999
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled

Name: Gi2/2/45
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: down
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 69 (Native_Edge)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none 
Administrative private-vlan mapping: none 
Operational private-vlan: none
Trunking VLANs Enabled: 69
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled

Name: Te2/9/1
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk (member of bundle Po1)
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Operational Dot1q Ethertype:  0x8100
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 69 (Native_Edge)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none 
Administrative private-vlan mapping: none 
Operational private-vlan: none
Trunking VLANs Enabled: 584-589,596,597,788,1500,1525,2040
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled

Name: Te2/9/2
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk (member of bundle Po2)
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Operational Dot1q Ethertype:  0x8100
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 69 (Native_Edge)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none 
Administrative private-vlan mapping: none 
Operational private-vlan: none
Trunking VLANs Enabled: 584-589,965,1500,1525,1579,3600
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
SUMMARY

The template stops parsing interfaces after it hits a multiline VLAN list for “Trunking VLANs Enabled”. It appears that the custom trunk state either isn't necessary or needs to be modified. I've had success with something like the following...

Value Required INTERFACE (\S+)
Value SWITCHPORT (.+?)
Value SWITCHPORT_MONITOR (.+?)
Value SWITCHPORT_NEGOTIATION (.+?)
Value MODE (.+?)
Value ADMIN_MODE (.+?)
Value ACCESS_VLAN (\d+|unassigned)
Value NATIVE_VLAN (\d+)
Value VOICE_VLAN (\S+)
Value List TRUNKING_VLANS (\S+?)

Start
  ^Name: -> Continue.Record
  ^Name:\s+${INTERFACE}
  ^\s*Switchport:\s+${SWITCHPORT}$$
  ^\s*Switchport\s+Monitor:\s+${SWITCHPORT_MONITOR}$$
  ^\s*Operational\s+Mode:\s+${MODE}$$
  ^\s*Negotiation\s+of\s+Trunking:\s+${SWITCHPORT_NEGOTIATION}$$
  ^\s*Access\s+Mode\s+VLAN:\s+${ACCESS_VLAN}
  ^\s*Trunking\s+Native\s+Mode\s+VLAN:\s+${NATIVE_VLAN}
  ^\s*Voice\s+VLAN:\s+${VOICE_VLAN}
  ^\s*Trunking\s+VLANs\s+Enabled:\s+${TRUNKING_VLANS},\s*$$ -> Trunk
  ^\s*Trunking\s+VLANs\s+Enabled:\s+${TRUNKING_VLANS}$$
  ^\s*Administrative\s+Mode:\s+${ADMIN_MODE}$$
  ^\s*(?:Operational|Administrative)\s+(?:Trunking|Native\s+VLAN|private-vlan)
  ^\s*Voice\s+VLAN:
  ^\s*Pruning\s+VLANs
  ^\s*Capture\s+(?:Mode|VLANs)
  ^\s*Autostate\s+mode\s+exclude
  ^\s*Protected
  ^\s*Unknown\s+(unicast|multicast)
  ^\s*Vepa\s+Enabled
  ^\s*Appliance\s+trust
  ^\s*Operational\s+Dot1q\s+Ethertype
  ^\s*$$
  # Capture time-stamp if vty line has command time-stamping turned on
  ^Load\s+for\s+
  ^Time\s+source\s+is
  ^. -> Error

Trunk
  ^\s+${TRUNKING_VLANS},\s*$$
  ^\s+${TRUNKING_VLANS}\s*$$
  ^\s*Pruning\s+VLANs -> Start
  ^. -> Error
STEPS TO REPRODUCE

Use the template to parse output that includes interfaces after an interface that includes a multiline trunking VLAN list.

EXPECTED RESULTS
[{'interface': 'Gi2/2/16',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'down',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '69',
  'voice_vlan': 'none',
  'trunking_vlans': ['586-589']},
 {'interface': 'Gi2/2/17',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'down',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '1',
  'voice_vlan': 'none',
  'trunking_vlans': ['501,504,517,522,526,529,556,567,568,577-579,582,583',
   '595,980,981,993,995,999']},
 {'interface': 'Gi2/2/45',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'down',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '69',
  'voice_vlan': 'none',
  'trunking_vlans': ['69']},
 {'interface': 'Te2/9/1',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'trunk (member of bundle Po1)',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '69',
  'voice_vlan': 'none',
  'trunking_vlans': ['584-589,596,597,788,1500,1525,2040']},
 {'interface': 'Te2/9/2',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'trunk (member of bundle Po2)',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '69',
  'voice_vlan': 'none',
  'trunking_vlans': ['584-589,965,1500,1525,1579,3600']}]
ACTUAL RESULTS
[{'interface': 'Gi2/2/16',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'down',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '69',
  'voice_vlan': 'none',
  'trunking_vlans': ['586-589']},
 {'interface': 'Gi2/2/17',
  'switchport': 'Enabled',
  'switchport_monitor': '',
  'switchport_negotiation': 'On',
  'mode': 'down',
  'admin_mode': 'trunk',
  'access_vlan': '1',
  'native_vlan': '1',
  'voice_vlan': 'none',
  'trunking_vlans': ['501,504,517,522,526,529,556,567,568,577-579,582,583',
   '595,980,981,993,995,999']}]
@FragmentedPacket
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@mickyhale I think your fix is acceptable. Could you submit a PR with the changes and new raw/test files?

@mickyhale mickyhale mentioned this issue Mar 19, 2021
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@FragmentedPacket @mickyhale