Ansible Authentication issue using ssh on Ubuntu server

I am having a problem, I need help in getting ansible playbook successful connect to simple cisco switch, error is below, can anyone help me ?

root@netadmin-Virtual-Machine:/etc/ansible# ansible-playbook ios_command_1.yml -vvvv
1903 1533876596.09467: starting run
ansible-playbook 2.5.7
config file = /etc/ansible/ansible.cfg
configured module search path = [u’/root/.ansible/plugins/modules’, u’/usr/share/ansible/plugins/modules’]
ansible python module location = /usr/lib/python2.7/dist-packages/ansible
executable location = /usr/bin/ansible-playbook
python version = 2.7.15rc1 (default, Apr 15 2018, 21:51:34) [GCC 7.3.0]
Using /etc/ansible/ansible.cfg as config file
1903 1533876596.34001: Added group all to inventory
1903 1533876596.34044: Added group ungrouped to inventory
1903 1533876596.34086: Group all now contains ungrouped
setting up inventory plugins
1903 1533876596.34433: Loading InventoryModule ‘host_list’ from /usr/lib/python2.7/dist-packages/ansible/plugins/inventory/host_list.py
1903 1533876596.34638: assigned :doc
1903 1533876596.34679: assigned :plainexamples
1903 1533876596.34763: Loading InventoryModule ‘script’ from /usr/lib/python2.7/dist-packages/ansible/plugins/inventory/script.py
1903 1533876596.35214: assigned :doc
1903 1533876596.35278: Loaded config def from plugin (inventory/script)
1903 1533876596.35376: Loading InventoryModule ‘yaml’ from /usr/lib/python2.7/dist-packages/ansible/plugins/inventory/yaml.py
1903 1533876596.35778: assigned :doc
1903 1533876596.35834: assigned :plainexamples
1903 1533876596.35906: Loaded config def from plugin (inventory/yaml)
1903 1533876596.36043: Loading InventoryModule ‘ini’ from /usr/lib/python2.7/dist-packages/ansible/plugins/inventory/ini.py
1903 1533876596.36778: assigned :doc
1903 1533876596.36845: assigned :plainexamples
1903 1533876596.36982: Loading InventoryModule ‘auto’ from /usr/lib/python2.7/dist-packages/ansible/plugins/inventory/auto.py
1903 1533876596.37186: assigned :doc
1903 1533876596.37248: assigned :plainexamples
1903 1533876596.37323: Examining possible inventory source: /etc/ansible/hosts
1903 1533876596.37387: Attempting to use plugin host_list (/usr/lib/python2.7/dist-packages/ansible/plugins/inventory/host_list.py)
1903 1533876596.37440: /etc/ansible/hosts did not meet host_list requirements
1903 1533876596.37488: Attempting to use plugin script (/usr/lib/python2.7/dist-packages/ansible/plugins/inventory/script.py)
1903 1533876596.38834: /etc/ansible/hosts was not parsable by script
1903 1533876596.38956: Attempting to use plugin yaml (/usr/lib/python2.7/dist-packages/ansible/plugins/inventory/yaml.py)
1903 1533876596.39089: Loading data from /etc/ansible/hosts
1903 1533876596.39455: /etc/ansible/hosts was not parsable by yaml
1903 1533876596.39525: Attempting to use plugin ini (/usr/lib/python2.7/dist-packages/ansible/plugins/inventory/ini.py)
1903 1533876596.39988: Added group switches to inventory
1903 1533876596.40120: set inventory_file for 10.11.32.100
1903 1533876596.40190: set inventory_dir for 10.11.32.100
1903 1533876596.40245: Added host 10.11.32.100 to inventory
1903 1533876596.40307: Added host 10.11.32.100 to group switches
Parsed /etc/ansible/hosts inventory source with ini plugin
1903 1533876596.40417: Reconcile groups and hosts in inventory.
1903 1533876596.40485: Group all now contains switches
1903 1533876596.40814: Loading CacheModule ‘memory’ from /usr/lib/python2.7/dist-packages/ansible/plugins/cache/memory.py
1903 1533876596.41029: assigned :doc
1903 1533876596.43485: Loading data from /etc/ansible/ios_command_1.yml
1903 1533876596.74245: Loading CallbackModule ‘default’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/default.py
Loading callback plugin default of type stdout, v2.0 from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/default.pyc
1903 1533876596.81133: assigned :doc
1903 1533876596.81993: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py
1903 1533876596.82200: Loaded config def from plugin (callback/default)
1903 1533876596.82402: Loading CallbackModule ‘actionable’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/actionable.py (found_in_cache=False, class_only=True)
1903 1533876596.82606: assigned :doc
1903 1533876596.82684: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876596.82844: Loaded config def from plugin (callback/actionable)
1903 1533876596.82983: Loading CallbackModule ‘context_demo’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/context_demo.py (found_in_cache=False, class_only=True)
1903 1533876596.83226: assigned :doc
1903 1533876596.83367: Loading CallbackModule ‘debug’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/debug.py (found_in_cache=False, class_only=True)
1903 1533876596.83591: assigned :doc
1903 1533876596.83677: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876596.83953: Loaded config def from plugin (callback/debug)
1903 1533876596.84033: Loading CallbackModule ‘default’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/default.py (found_in_cache=False, class_only=True)
1903 1533876596.84737: assigned :doc
1903 1533876596.84830: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876596.84993: Loaded config def from plugin (callback/default)
1903 1533876596.85119: Loading CallbackModule ‘dense’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/dense.py (found_in_cache=False, class_only=True)
1903 1533876596.85846: assigned :doc
1903 1533876596.85944: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876596.86098: Loaded config def from plugin (callback/dense)
1903 1533876596.86257: Loading CallbackModule ‘foreman’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/foreman.py (found_in_cache=False, class_only=True)
1903 1533876596.86834: assigned :doc
1903 1533876596.87038: Loaded config def from plugin (callback/foreman)
1903 1533876596.87165: Loading CallbackModule ‘full_skip’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/full_skip.py (found_in_cache=False, class_only=True)
1903 1533876596.87347: assigned :doc
1903 1533876596.87411: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876596.87613: Loaded config def from plugin (callback/full_skip)
1903 1533876596.90800: Loading CallbackModule ‘hipchat’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/hipchat.py (found_in_cache=False, class_only=True)
1903 1533876596.91576: assigned :doc
1903 1533876596.91653: Loaded config def from plugin (callback/hipchat)
1903 1533876596.91788: Loading CallbackModule ‘jabber’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/jabber.py (found_in_cache=False, class_only=True)
1903 1533876596.92196: assigned :doc
1903 1533876596.92269: Loaded config def from plugin (callback/jabber)
1903 1533876596.92365: Loading CallbackModule ‘json’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/json.py (found_in_cache=False, class_only=True)
1903 1533876596.92580: assigned :doc
1903 1533876596.92747: Loading CallbackModule ‘junit’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/junit.py (found_in_cache=False, class_only=True)
1903 1533876596.93611: assigned :doc
1903 1533876596.93737: Loaded config def from plugin (callback/junit)
1903 1533876596.93852: Loading CallbackModule ‘log_plays’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/log_plays.py (found_in_cache=False, class_only=True)
1903 1533876596.94096: assigned :doc
1903 1533876596.94321: Loading CallbackModule ‘logentries’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/logentries.py (found_in_cache=False, class_only=True)
1903 1533876596.95452: assigned :doc
1903 1533876596.95525: assigned :plainexamples
1903 1533876596.95612: Loaded config def from plugin (callback/logentries)
1903 1533876596.95756: Loading CallbackModule ‘logstash’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/logstash.py (found_in_cache=False, class_only=True)
1903 1533876596.96249: assigned :doc
1903 1533876596.96328: Loaded config def from plugin (callback/logstash)
1903 1533876596.96579: Loading CallbackModule ‘mail’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/mail.py (found_in_cache=False, class_only=True)
1903 1533876596.97908: assigned :doc
1903 1533876596.98010: Loaded config def from plugin (callback/mail)
1903 1533876596.98116: Loading CallbackModule ‘minimal’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/minimal.py (found_in_cache=False, class_only=True)
1903 1533876596.98416: assigned :doc
1903 1533876596.98523: Loading CallbackModule ‘null’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/null.py (found_in_cache=False, class_only=True)
1903 1533876596.98733: assigned :doc
1903 1533876596.98890: Loading CallbackModule ‘oneline’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/oneline.py (found_in_cache=False, class_only=True)
1903 1533876596.99347: assigned :doc
1903 1533876596.99543: Loading CallbackModule ‘osx_say’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/osx_say.py (found_in_cache=False, class_only=True)
1903 1533876596.99927: assigned :doc
1903 1533876597.00057: Loading CallbackModule ‘profile_roles’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/profile_roles.py (found_in_cache=False, class_only=True)
1903 1533876597.00361: assigned :doc
1903 1533876597.00482: Loading CallbackModule ‘profile_tasks’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/profile_tasks.py (found_in_cache=False, class_only=True)
1903 1533876597.00966: assigned :doc
1903 1533876597.01023: assigned :plainexamples
1903 1533876597.01100: Loaded config def from plugin (callback/profile_tasks)
1903 1533876597.01210: Loading CallbackModule ‘selective’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/selective.py (found_in_cache=False, class_only=True)
1903 1533876597.01918: assigned :doc
1903 1533876597.01977: assigned :plainexamples
1903 1533876597.02068: Loaded config def from plugin (callback/selective)
1903 1533876597.02166: Loading CallbackModule ‘skippy’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/skippy.py (found_in_cache=False, class_only=True)
1903 1533876597.02314: assigned :doc
1903 1533876597.02377: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876597.02559: Loaded config def from plugin (callback/skippy)
1903 1533876597.02702: Loading CallbackModule ‘slack’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/slack.py (found_in_cache=False, class_only=True)
1903 1533876597.03272: assigned :doc
1903 1533876597.03358: Loaded config def from plugin (callback/slack)
1903 1533876597.03458: Loading CallbackModule ‘stderr’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/stderr.py (found_in_cache=False, class_only=True)
1903 1533876597.03686: assigned :doc
1903 1533876597.03760: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876597.03951: Loaded config def from plugin (callback/stderr)
1903 1533876597.04239: Loading CallbackModule ‘syslog_json’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/syslog_json.py (found_in_cache=False, class_only=True)
1903 1533876597.04659: assigned :doc
1903 1533876597.04818: Loaded config def from plugin (callback/syslog_json)
1903 1533876597.05027: Loading CallbackModule ‘timer’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/timer.py (found_in_cache=False, class_only=True)
1903 1533876597.05265: assigned :doc
1903 1533876597.05382: Loading CallbackModule ‘tree’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/tree.py (found_in_cache=False, class_only=True)
1903 1533876597.05585: assigned :doc
1903 1533876597.05705: Loading CallbackModule ‘unixy’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/unixy.py (found_in_cache=False, class_only=True)
1903 1533876597.06200: assigned :doc
1903 1533876597.06289: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876597.06470: Loaded config def from plugin (callback/unixy)
1903 1533876597.06615: Loading CallbackModule ‘yaml’ from /usr/lib/python2.7/dist-packages/ansible/plugins/callback/yaml.py (found_in_cache=False, class_only=True)
1903 1533876597.06935: assigned :doc
1903 1533876597.07020: Loading ModuleDocFragment ‘default_callback’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/default_callback.py (found_in_cache=True, class_only=False)
1903 1533876597.07207: Loaded config def from plugin (callback/yaml)

PLAYBOOK: ios_command_1.yml ********************************************************************************************************************************************************************************************
1 plays in ios_command_1.yml
1903 1533876597.07395: in VariableManager get_vars()
1903 1533876597.08112: Loading FilterModule ‘core’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/core.py
1903 1533876597.08265: Loading FilterModule ‘ipaddr’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/ipaddr.py
1903 1533876597.08379: Loading FilterModule ‘json_query’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/json_query.py
1903 1533876597.08504: Loading FilterModule ‘mathstuff’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/mathstuff.py
1903 1533876597.09315: Loading FilterModule ‘network’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/network.py
1903 1533876597.09447: Loading FilterModule ‘urlsplit’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/urlsplit.py
1903 1533876597.09776: Loading TestModule ‘core’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/core.py
1903 1533876597.09881: Loading TestModule ‘files’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/files.py
1903 1533876597.09999: Loading TestModule ‘mathstuff’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/mathstuff.py
1903 1533876597.11120: done with get_vars()
1903 1533876597.11253: in VariableManager get_vars()
1903 1533876597.11375: Loading FilterModule ‘core’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/core.py (found_in_cache=True, class_only=False)
1903 1533876597.11440: Loading FilterModule ‘ipaddr’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/ipaddr.py (found_in_cache=True, class_only=False)
1903 1533876597.11498: Loading FilterModule ‘json_query’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/json_query.py (found_in_cache=True, class_only=False)
1903 1533876597.11552: Loading FilterModule ‘mathstuff’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/mathstuff.py (found_in_cache=True, class_only=False)
1903 1533876597.11607: Loading FilterModule ‘network’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/network.py (found_in_cache=True, class_only=False)
1903 1533876597.11664: Loading FilterModule ‘urlsplit’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/urlsplit.py (found_in_cache=True, class_only=False)
1903 1533876597.11761: Loading TestModule ‘core’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/core.py (found_in_cache=True, class_only=False)
1903 1533876597.11825: Loading TestModule ‘files’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/files.py (found_in_cache=True, class_only=False)
1903 1533876597.11882: Loading TestModule ‘mathstuff’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/mathstuff.py (found_in_cache=True, class_only=False)
1903 1533876597.12114: done with get_vars()

PLAY [Collect IOS Device Facts] ****************************************************************************************************************************************************************************************
1903 1533876597.14129: Loading StrategyModule ‘linear’ from /usr/lib/python2.7/dist-packages/ansible/plugins/strategy/linear.py
1903 1533876597.14376: getting the remaining hosts for this loop
1903 1533876597.14510: done getting the remaining hosts for this loop
1903 1533876597.14581: building list of next tasks for hosts
1903 1533876597.14633: getting the next task for host 10.11.32.100
1903 1533876597.14694: done getting next task for host 10.11.32.100
1903 1533876597.14751: ^ task is: TASK: meta (flush_handlers)
1903 1533876597.14810: ^ state is: HOST STATE: block=1, task=1, rescue=0, always=0, run_state=ITERATING_TASKS, fail_state=FAILED_NONE, pending_setup=False, tasks child state? (None), rescue child state? (None), always child state? (None), did rescue? False, did start at task? False
1903 1533876597.14878: done building task lists
1903 1533876597.14931: counting tasks in each state of execution
1903 1533876597.14991: done counting tasks in each state of execution:
num_setups: 0
num_tasks: 1
num_rescue: 0
num_always: 0
1903 1533876597.15160: advancing hosts in ITERATING_TASKS
1903 1533876597.15212: starting to advance hosts
1903 1533876597.15268: getting the next task for host 10.11.32.100
1903 1533876597.15338: done getting next task for host 10.11.32.100
1903 1533876597.15405: ^ task is: TASK: meta (flush_handlers)
1903 1533876597.15460: ^ state is: HOST STATE: block=1, task=1, rescue=0, always=0, run_state=ITERATING_TASKS, fail_state=FAILED_NONE, pending_setup=False, tasks child state? (None), rescue child state? (None), always child state? (None), did rescue? False, did start at task? False
1903 1533876597.15518: done advancing hosts to next task
META: ran handlers
1903 1533876597.15628: done queuing things up, now waiting for results queue to drain
1903 1533876597.15673: results queue empty
1903 1533876597.15718: checking for any_errors_fatal
1903 1533876597.15767: done checking for any_errors_fatal
1903 1533876597.15812: checking for max_fail_percentage
1903 1533876597.15854: done checking for max_fail_percentage
1903 1533876597.15893: checking to see if all hosts have failed and the running result is not ok
1903 1533876597.15939: done checking to see if all hosts have failed
1903 1533876597.15982: getting the remaining hosts for this loop
1903 1533876597.16031: done getting the remaining hosts for this loop
1903 1533876597.16083: building list of next tasks for hosts
1903 1533876597.16128: getting the next task for host 10.11.32.100
1903 1533876597.16181: done getting next task for host 10.11.32.100
1903 1533876597.16229: ^ task is: TASK: run show version on remote devices
1903 1533876597.16272: ^ state is: HOST STATE: block=2, task=1, rescue=0, always=0, run_state=ITERATING_TASKS, fail_state=FAILED_NONE, pending_setup=False, tasks child state? (None), rescue child state? (None), always child state? (None), did rescue? False, did start at task? False
1903 1533876597.16319: done building task lists
1903 1533876597.16365: counting tasks in each state of execution
1903 1533876597.16407: done counting tasks in each state of execution:
num_setups: 0
num_tasks: 1
num_rescue: 0
num_always: 0
1903 1533876597.16542: advancing hosts in ITERATING_TASKS
1903 1533876597.16592: starting to advance hosts
1903 1533876597.16638: getting the next task for host 10.11.32.100
1903 1533876597.16686: done getting next task for host 10.11.32.100
1903 1533876597.16733: ^ task is: TASK: run show version on remote devices
1903 1533876597.16779: ^ state is: HOST STATE: block=2, task=1, rescue=0, always=0, run_state=ITERATING_TASKS, fail_state=FAILED_NONE, pending_setup=False, tasks child state? (None), rescue child state? (None), always child state? (None), did rescue? False, did start at task? False
1903 1533876597.16823: done advancing hosts to next task
1903 1533876597.16887: getting variables
1903 1533876597.16956: in VariableManager get_vars()
1903 1533876597.17182: Loading FilterModule ‘core’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/core.py (found_in_cache=True, class_only=False)
1903 1533876597.17283: Loading FilterModule ‘ipaddr’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/ipaddr.py (found_in_cache=True, class_only=False)
1903 1533876597.17346: Loading FilterModule ‘json_query’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/json_query.py (found_in_cache=True, class_only=False)
1903 1533876597.17401: Loading FilterModule ‘mathstuff’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/mathstuff.py (found_in_cache=True, class_only=False)
1903 1533876597.17450: Loading FilterModule ‘network’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/network.py (found_in_cache=True, class_only=False)
1903 1533876597.17498: Loading FilterModule ‘urlsplit’ from /usr/lib/python2.7/dist-packages/ansible/plugins/filter/urlsplit.py (found_in_cache=True, class_only=False)
1903 1533876597.17590: Loading TestModule ‘core’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/core.py (found_in_cache=True, class_only=False)
1903 1533876597.17643: Loading TestModule ‘files’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/files.py (found_in_cache=True, class_only=False)
1903 1533876597.17693: Loading TestModule ‘mathstuff’ from /usr/lib/python2.7/dist-packages/ansible/plugins/test/mathstuff.py (found_in_cache=True, class_only=False)
1903 1533876597.17923: Calling all_inventory to load vars for 10.11.32.100
1903 1533876597.17975: Calling groups_inventory to load vars for 10.11.32.100
1903 1533876597.18025: Calling all_plugins_inventory to load vars for 10.11.32.100
1903 1533876597.18240: Loading VarsModule ‘host_group_vars’ from /usr/lib/python2.7/dist-packages/ansible/plugins/vars/host_group_vars.py
1903 1533876597.18313: Calling all_plugins_play to load vars for 10.11.32.100
1903 1533876597.18388: Loading VarsModule ‘host_group_vars’ from /usr/lib/python2.7/dist-packages/ansible/plugins/vars/host_group_vars.py (found_in_cache=True, class_only=False)
1903 1533876597.18468: Calling groups_plugins_inventory to load vars for 10.11.32.100
1903 1533876597.18551: Loading VarsModule ‘host_group_vars’ from /usr/lib/python2.7/dist-packages/ansible/plugins/vars/host_group_vars.py (found_in_cache=True, class_only=False)
1903 1533876597.18632: Calling groups_plugins_play to load vars for 10.11.32.100
1903 1533876597.18706: Loading VarsModule ‘host_group_vars’ from /usr/lib/python2.7/dist-packages/ansible/plugins/vars/host_group_vars.py (found_in_cache=True, class_only=False)
1903 1533876597.18814: Loading VarsModule ‘host_group_vars’ from /usr/lib/python2.7/dist-packages/ansible/plugins/vars/host_group_vars.py (found_in_cache=True, class_only=False)
1903 1533876597.18907: Loading VarsModule ‘host_group_vars’ from /usr/lib/python2.7/dist-packages/ansible/plugins/vars/host_group_vars.py (found_in_cache=True, class_only=False)
1903 1533876597.19006: done with get_vars()
1903 1533876597.19076: done getting variables
1903 1533876597.19125: sending task start callback, copying the task so we can template it temporarily
1903 1533876597.19173: done copying, going to template now
1903 1533876597.19218: done templating
1903 1533876597.19260: here goes the callback…

TASK [run show version on remote devices] ******************************************************************************************************************************************************************************
task path: /etc/ansible/ios_command_1.yml:8
1903 1533876597.19443: sending task start callback
1903 1533876597.19526: entering _queue_task() for 10.11.32.100/ios_command
1903 1533876597.19599: Creating lock for ios_command
1903 1533876597.19923: worker is 1 (out of 1 available)
1903 1533876597.20192: exiting _queue_task() for 10.11.32.100/ios_command
1903 1533876597.20647: done queuing things up, now waiting for results queue to drain
1903 1533876597.20698: waiting for pending results…
1911 1533876597.21677: running TaskExecutor() for 10.11.32.100/TASK: run show version on remote devices
1911 1533876597.21866: in run() - task 00155d24-6f11-11bb-3aca-000000000008
1911 1533876597.22030: calling self._execute()
1911 1533876597.22999: Loading Connection ‘network_cli’ from /usr/lib/python2.7/dist-packages/ansible/plugins/connection/network_cli.py
1911 1533876597.23340: Loading ShellModule ‘sh’ from /usr/lib/python2.7/dist-packages/ansible/plugins/shell/sh.py
1911 1533876597.23831: assigned :doc
1911 1533876597.23962: Loading ModuleDocFragment ‘shell_common’ from /usr/lib/python2.7/dist-packages/ansible/utils/module_docs_fragments/shell_common.py
1911 1533876597.24377: Loaded config def from plugin (shell/sh)
1911 1533876597.24431: Loading ShellModule ‘sh’ from /usr/lib/python2.7/dist-packages/ansible/plugins/shell/sh.py (found_in_cache=True, class_only=False)
1911 1533876597.25023: Loading Connection ‘local’ from /usr/lib/python2.7/dist-packages/ansible/plugins/connection/local.py
1911 1533876597.25083: Loading ShellModule ‘sh’ from /usr/lib/python2.7/dist-packages/ansible/plugins/shell/sh.py (found_in_cache=True, class_only=False)
1911 1533876597.25144: Loading ShellModule ‘sh’ from /usr/lib/python2.7/dist-packages/ansible/plugins/shell/sh.py (found_in_cache=True, class_only=False)
1911 1533876597.25602: assigned :doc
1911 1533876597.25855: Loading Connection ‘ssh’ from /usr/lib/python2.7/dist-packages/ansible/plugins/connection/ssh.py (found_in_cache=False, class_only=True)
1911 1533876597.28924: assigned :doc
1911 1533876597.29123: Loaded config def from plugin (connection/ssh)
1911 1533876597.30727: assigned :doc
1911 1533876597.30861: Loaded config def from plugin (connection/network_cli)
<10.11.32.100> attempting to start connection
<10.11.32.100> using connection plugin network_cli
<10.11.32.100> local domain socket does not exist, starting it
<10.11.32.100> control socket path is /root/.ansible/pc/2e6a38f446
<10.11.32.100> 1912 1533876598.40468: Loading Connection ‘ssh’ from /usr/lib/python2.7/dist-packages/ansible/plugins/connection/ssh.py (found_in_cache=False, class_only=True)
1912 1533876598.43470: assigned :doc
1912 1533876598.43656: Loaded config def from plugin (connection/ssh)
The full traceback is:
Traceback (most recent call last):
File “/usr/bin/ansible-connection”, line 87, in start
self.connection._connect()
File “/usr/lib/python2.7/dist-packages/ansible/plugins/connection/network_cli.py”, line 292, in _connect
ssh = self.paramiko_conn._connect()
File “/usr/lib/python2.7/dist-packages/ansible/plugins/connection/paramiko_ssh.py”, line 240, in _connect
self.ssh = SSH_CONNECTION_CACHE[cache_key] = self._connect_uncached()
File “/usr/lib/python2.7/dist-packages/ansible/plugins/connection/paramiko_ssh.py”, line 348, in _connect_uncached
raise AnsibleConnectionFailure(msg)
AnsibleConnectionFailure: Authentication failed.
1911 1533876601.49185: done running TaskExecutor() for 10.11.32.100/TASK: run show version on remote devices [00155d24-6f11-11bb-3aca-000000000008]
1911 1533876601.49288: sending task result for task 00155d24-6f11-11bb-3aca-000000000008
1911 1533876601.49810: done sending task result for task 00155d24-6f11-11bb-3aca-000000000008
1911 1533876601.50225: WORKER PROCESS EXITING
1903 1533876601.50541: marking 10.11.32.100 as failed
1903 1533876601.51035: marking host 10.11.32.100 failed, current state: HOST STATE: block=2, task=1, rescue=0, always=0, run_state=ITERATING_TASKS, fail_state=FAILED_NONE, pending_setup=False, tasks child state? (None), rescue child state? (None), always child state? (None), did rescue? False, did start at task? False
1903 1533876601.51100: ^ failed state is now: HOST STATE: block=2, task=1, rescue=0, always=0, run_state=ITERATING_COMPLETE, fail_state=FAILED_TASKS, pending_setup=False, tasks child state? (None), rescue child state? (None), always child state? (None), did rescue? False, did start at task? False
1903 1533876601.51166: getting the next task for host 10.11.32.100
1903 1533876601.51220: host 10.11.32.100 is done iterating, returning
fatal: [10.11.32.100]: FAILED! => {
“msg”: “Authentication failed.”
}
1903 1533876601.52450: no more pending results, returning what we have
1903 1533876601.52513: results queue empty
1903 1533876601.52569: checking for any_errors_fatal
1903 1533876601.52625: done checking for any_errors_fatal
1903 1533876601.52682: checking for max_fail_percentage
1903 1533876601.52735: done checking for max_fail_percentage
1903 1533876601.52783: checking to see if all hosts have failed and the running result is not ok
1903 1533876601.52855: done checking to see if all hosts have failed
1903 1533876601.52907: getting the remaining hosts for this loop
1903 1533876601.53017: done getting the remaining hosts for this loop
1903 1533876601.53416: building list of next tasks for hosts
1903 1533876601.53470: getting the next task for host 10.11.32.100
1903 1533876601.53524: host 10.11.32.100 is done iterating, returning
1903 1533876601.53573: done building task lists
1903 1533876601.53626: counting tasks in each state of execution
1903 1533876601.53678: done counting tasks in each state of execution:
num_setups: 0
num_tasks: 0
num_rescue: 0
num_always: 0
1903 1533876601.53840: all hosts are done, so returning None’s for all hosts
1903 1533876601.53892: done queuing things up, now waiting for results queue to drain
1903 1533876601.53943: results queue empty
1903 1533876601.54608: checking for any_errors_fatal
1903 1533876601.54661: done checking for any_errors_fatal
1903 1533876601.54712: checking for max_fail_percentage
1903 1533876601.54763: done checking for max_fail_percentage
1903 1533876601.54817: checking to see if all hosts have failed and the running result is not ok
1903 1533876601.54872: done checking to see if all hosts have failed
1903 1533876601.54928: getting the next task for host 10.11.32.100
1903 1533876601.54987: host 10.11.32.100 is done iterating, returning
1903 1533876601.55042: running handlers
to retry, use: --limit @/etc/ansible/ios_command_1.retry

PLAY RECAP *************************************************************************************************************************************************************************************************************
10.11.32.100 : ok=0 changed=0 unreachable=0 failed=1

1903 1533876601.55926: RUNNING CLEANUP

It is fails while authentication during connection initialisation with remote host.How are you providing the password for remote user?

Please refer doc for ios related options.

Hope this helps.

Regards,
Ganesh