Cisco IOS show ip interface sometimes is failing

[gertzakis]

ISSUE TYPE

• Template Issue with error and raw data

TEMPLATE USING

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|Clear)
  ^\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

Vlan1 is administratively down, line protocol is down
  Internet protocol processing disabled
Vlan2 is up, line protocol is up
  Internet address is 10.253.11.9/25
  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 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 fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP Fast switching turbo vector
  IP Normal CEF switching turbo vector
  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
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
  BGP Policy Mapping is disabled
  Sampled Netflow is disabled
  IP multicast multilayer switching is disabled
Vlan300 is up, line protocol is up
  Internet protocol processing disabled
GigabitEthernet1/1 is up, line protocol is up
GigabitEthernet1/2 is administratively down, line protocol is down
  Internet protocol processing disabled

SUMMARY

The parsing is failing cause it cannot parse the IP Fast switching turbo vector and IP Normal CEF switching turbo vector lines.

STEPS TO REPRODUCE

EXPECTED RESULTS

Parse the output and get data.

ACTUAL RESULTS

Parsing failed with the below error.

State Error raised. Rule Line: 67. Input Line: IP Fast switching turbo vector

[gertzakis]

This is now fixed with the release of version 7.0.0.