Cisco IOS. sh ip interface - textfsm.parser.TextFSMError: State Error raised.

Question

Cisco IOS. sh ip interface - textfsm.parser.TextFSMError: State Error raised.

Closed this issue a year ago · 7 comments

ISSUE TYPE

Bug Report

TEMPLATE USING

cisco_ios_show_ip_interface.textfsm

Value Required INTERFACE (\S+)
Value LINK_STATUS (.+?)
Value PROTOCOL_STATUS (.+?)
Value List IP_ADDRESS (\S+?)
Value List PREFIX_LENGTH (\d*)
Value VRF (\S+)
Value MTU (\d+)
Value List IP_HELPER (\d+\.\d+\.\d+\.\d+)
Value OUTGOING_ACL (.*?)
Value INBOUND_ACL (.*?)


Start
  ^\S -> Continue.Record
  ^${INTERFACE}\s+is\s+${LINK_STATUS},\s+line\s+protocol\s+is\s+${PROTOCOL_STATUS}\s*$$
  ^\s+Internet\s+address\s+is\s+${IP_ADDRESS}/?${PREFIX_LENGTH}\s*$$
  ^\s+Internet\s+address\s+will\s+be\s+negotiated
  ^\s+Secondary\s+address\s+${IP_ADDRESS}/?${PREFIX_LENGTH}\s*$$
  ^.+VPN\s+Routing/Forwarding\s+"${VRF}"
  ^\s+MTU\s+is\s+${MTU}\s+bytes
  ^\s+Helper\s+address(es|)\s(is|are)\s+${IP_HELPER}\s*$$ -> HELPERS
  ^\s+Outgoing\s+(?:Common\s+)?access\s+list\s+is\s+not\s+set
  ^\s+Outgoing\s+(?:Common\s+)?access\s+list\s+is\s+${OUTGOING_ACL}\s*$$
  ^\s+Inbound\s+(?:Common\s+)?access\s+list\s+is\s+not\s+set
  ^\s+Inbound\s+(?:Common\s+)?access\s+list\s+is\s+${INBOUND_ACL}\s*$$
  ^\s+Internet\s+protocol
  ^\s+Interface\s+is\s+unnumbered
  ^\s+Peer\s+address
  ^\s+Dialer
  ^\s+Broadcast
  ^\s+Multicast
  ^\s+2[2-5]\d\.
  ^\s+Address\s+determined
  ^\s+Peer
  ^\s+Directed
  ^\s+MTU
  ^\s+Helper
  ^\s+Directed
  ^\s+Outgoing
  ^\s+Inbound
  ^\s+.*Proxy
  ^\s+Security
  ^\s+Split
  ^\s+ICMP
  ^\s+IP\s+(?:fast|Flow|CEF|Null|multicast|route|output|access)
  ^\s+Downstream
  ^\s+Associated
  ^\s+Topology
  ^\s+Router
  ^\s+TCP
  ^\s+RTP
  ^\s+Probe
  ^\s+Policy
  ^\s+Network\s+address\s+
  ^\s+BGP
  ^\s+Sampled\s+Netflow
  ^\s+IP\s+(Routed|Bridged)\s+Flow
  ^\s+(Input|Output|Post)\s+.*features
  ^\s+(IPv4\s+)?WCCP
  ^\s+IP\s+verify\s+source\s+reachable
  ^\s+\d+\s+(suppressed\s+)?verification\s+drop(s)?
  ^\s*IP\s+Distributed\s+switching\s+is
  ^\s*$$
  # Capture time-stamp if vty line has command time-stamping turned on
  ^Load\s+for\s+
  ^Time\s+source\s+is
  ^. -> Error

HELPERS
  ^\s+${IP_HELPER}\s*$$
  ^\s+Directed -> Start
  ^.* -> Error

SAMPLE COMMAND OUTPUT

GigabitEthernet0/0/0 is up, line protocol is up
  Internet address is 10.1.1.1/30
  Broadcast address is 255.255.255.255
  Address determined by non-volatile memory
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing Common access list is not set
  Outgoing access list is not set
  Inbound Common access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP CEF switching turbo vector
  IP Null turbo vector
  Associated unicast routing topologies:
        Topology "base", operation state is UP
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast, CEF
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Probe proxy name replies are disabled
  Policy routing is disabled
  Network address translation is disabled
  BGP Policy Mapping is disabled
  Input features: Virtual Fragment Reassembly, IPSec input classification, MCI Check
  Output features: IPSec output classification, IPSec: to crypto engine, Post-encryption output features
  IPv4 WCCP Redirect outbound is disabled
  IPv4 WCCP Redirect inbound is disabled
  IPv4 WCCP Redirect exclude is disabled
  IP Clear Dont Fragment is disabled

SUMMARY

When attempting to parse the output from the sh ip interface (show ip interface) command on Cisco IOS, the Error raised as shown below

STEPS TO REPRODUCE

from ntc_templates.parse import parse_output
data_parsed = parse_output(
...     platform="cisco_ios", command="show ip interface", data=open('cisco_ios_show_ip_interface.raw').read())

EXPECTED RESULTS

>>> data_parsed = parse_output(
...     platform="cisco_ios", command="show ip interface", data=open('cisco_ios_show_ip_interface.raw').read())
>>> data_parsed 
[{'interface': 'GigabitEthernet0/0/0', 'link_status': 'up', 'protocol_status': 'up', 'ip_address': ['10.1.1.1'], 'prefix_length': ['30'], 'vrf': '', 'mtu': '1500', 'ip_helper': [], 'outgoing_acl': '', 'inbound_acl': ''}]

ACTUAL RESULTS

Traceback (most recent call last):
  File "/opt/netbox_filler/715_sh_ip_int_basic_analysis_all.py", line 272, in <module>
    pretty, errors = gathered_to_pretty_dict(norm_gathered)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox_filler/715_sh_ip_int_basic_analysis_all.py", line 134, in gathered_to_pretty_dict
    result = cisco_iosxe_to_pretty_dict(elem)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox_filler/715_sh_ip_int_basic_analysis_all.py", line 150, in cisco_iosxe_to_pretty_dict
    result['interfaces'] = parse_output(platform="cisco_ios", command="show ip interface", data=device_gathered['show ip interface'])
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/netdevops/.local/lib/python3.11/site-packages/ntc_templates/parse.py", line 56, in parse_output
    cli_table.ParseCmd(data, attrs)
  File "/home/netdevops/.local/lib/python3.11/site-packages/textfsm/clitable.py", line 282, in ParseCmd
    self.table = self._ParseCmdItem(self.raw, template_file=template_files[0])
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/netdevops/.local/lib/python3.11/site-packages/textfsm/clitable.py", line 315, in _ParseCmdItem
    for record in fsm.ParseText(cmd_input):
                  ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/netdevops/.local/lib/python3.11/site-packages/textfsm/parser.py", line 897, in ParseText
    self._CheckLine(line)
  File "/home/netdevops/.local/lib/python3.11/site-packages/textfsm/parser.py", line 946, in _CheckLine
    if self._Operations(rule, line):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/netdevops/.local/lib/python3.11/site-packages/textfsm/parser.py", line 1026, in _Operations
    raise TextFSMError('State Error raised. Rule Line: %s. Input Line: %s'
textfsm.parser.TextFSMError: State Error raised. Rule Line: 67. Input Line:   IP Clear Dont Fragment is disabled

Answer 1 · 2023-09-24T10:01:33.000Z

Fix PR:
#1533
Tested, works

Answer 2 · 2023-09-27T10:28:16.000Z

Same issue for me and your PR @mncrftfrcnm fixed it. Thanks for your contribution!

Answer 3 · 2023-09-27T12:45:57.000Z

Same issue for me and your PR @mncrftfrcnm fixed it. Thanks for your contribution!

Thanks, @angely-dev, you're welcome,

Hope that this comment will speed up the merge :)

Answer 4 · 2023-09-30T14:04:45.000Z

It's working well now. I appreciate the fix you've made. Thank you!

Answer 5 · 2023-09-30T14:13:17.000Z

It's working well now. I appreciate the fix you've made. Thank you!

you're welcome :) hope the merge will happen one day

Answer 6 · 2023-10-06T16:30:51.000Z

Same issue here

textfsm.parser.TextFSMError: State Error raised. Rule Line: 143. Input Line: IP Clear Dont Fragment is disabled

Answer 7 · 2023-10-15T15:19:26.000Z

Thanks @goodNETnick , @angely-dev , @nobodytao, @jvanderaa for your feedback.
As the pull request has been successfully merged, I'm closing this issue.
Have a good day!