diff --git a/changelogs/fragments/61736-eos-normalize-interface.yaml b/changelogs/fragments/61736-eos-normalize-interface.yaml
new file mode 100644
index 00000000000000..4009808cca7bef
--- /dev/null
+++ b/changelogs/fragments/61736-eos-normalize-interface.yaml
@@ -0,0 +1,3 @@
+bugfixes:
+- Remove case sensitivity on interface names from eos_interfaces, eos_l2_interfaces, eos_l3_interfaces,
+  eos_lacp_interfaces, eos_lag_interfaces, and eos_lldp_interfaces.
diff --git a/lib/ansible/module_utils/network/eos/config/interfaces/interfaces.py b/lib/ansible/module_utils/network/eos/config/interfaces/interfaces.py
index cf3fba7e093245..7687ae296f0891 100644
--- a/lib/ansible/module_utils/network/eos/config/interfaces/interfaces.py
+++ b/lib/ansible/module_utils/network/eos/config/interfaces/interfaces.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
-# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 """
 The eos_interfaces class
 It is in this file where the current configuration (as dict)
@@ -12,10 +13,10 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.module_utils.network.common.utils import to_list, param_list_to_dict
-
 from ansible.module_utils.network.common.cfg.base import ConfigBase
+from ansible.module_utils.network.common.utils import to_list, dict_diff, param_list_to_dict
 from ansible.module_utils.network.eos.facts.facts import Facts
+from ansible.module_utils.network.eos.utils.utils import normalize_interface
 
 
 class Interfaces(ConfigBase):
@@ -93,148 +94,143 @@ def set_state(self, want, have):
         :returns: the commands necessary to migrate the current configuration
                   to the desired configuration
         """
+        state = self._module.params['state']
         want = param_list_to_dict(want)
         have = param_list_to_dict(have)
-        state = self._module.params['state']
         if state == 'overridden':
-            commands = state_overridden(want, have)
+            commands = self._state_overridden(want, have)
         elif state == 'deleted':
-            commands = state_deleted(want, have)
+            commands = self._state_deleted(want, have)
         elif state == 'merged':
-            commands = state_merged(want, have)
+            commands = self._state_merged(want, have)
         elif state == 'replaced':
-            commands = state_replaced(want, have)
+            commands = self._state_replaced(want, have)
         return commands
 
+    @staticmethod
+    def _state_replaced(want, have):
+        """ The command generator when state is replaced
 
-def state_replaced(want, have):
-    """ The command generator when state is replaced
-
-    :rtype: A list
-    :returns: the commands necessary to migrate the current configuration
-              to the desired configuration
-    """
-    commands = _compute_commands(want, have, replace=True, remove=True)
-
-    replace = commands['replace']
-    remove = commands['remove']
-
-    commands_by_interface = replace
-    for interface, commands in remove.items():
-        commands_by_interface[interface] = replace.get(interface, []) + commands
-
-    return _flatten_commands(commands_by_interface)
-
-
-def state_overridden(want, have):
-    """ The command generator when state is overridden
-
-    :rtype: A list
-    :returns: the commands necessary to migrate the current configuration
-              to the desired configuration
-    """
-    # Add empty desired state for unspecified interfaces
-    for key in have:
-        if key not in want:
-            want[key] = {}
+        :rtype: A list
+        :returns: the commands necessary to migrate the current configuration
+                  to the desired configuration
+        """
+        commands = []
+        for key, desired in want.items():
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
+            else:
+                extant = dict()
 
-    # Otherwise it's the same as replaced
-    return state_replaced(want, have)
+            add_config = dict_diff(extant, desired)
+            del_config = dict_diff(desired, extant)
 
+            commands.extend(generate_commands(key, add_config, del_config))
 
-def state_merged(want, have):
-    """ The command generator when state is merged
+        return commands
 
-    :rtype: A list
-    :returns: the commands necessary to merge the provided into
-              the current configuration
-    """
-    commands = _compute_commands(want, have, replace=True)
-    return _flatten_commands(commands['replace'])
+    @staticmethod
+    def _state_overridden(want, have):
+        """ The command generator when state is overridden
 
+        :rtype: A list
+        :returns: the commands necessary to migrate the current configuration
+                  to the desired configuration
+        """
+        commands = []
+        for key, extant in have.items():
+            if key in want:
+                desired = want[key]
+            else:
+                desired = dict()
 
-def state_deleted(want, have):
-    """ The command generator when state is deleted
+            add_config = dict_diff(extant, desired)
+            del_config = dict_diff(desired, extant)
 
-    :rtype: A list
-    :returns: the commands necessary to remove the current configuration
-              of the provided objects
-    """
-    commands = _compute_commands(want, have, remove=True)
-    return _flatten_commands(commands['remove'])
+            commands.extend(generate_commands(key, add_config, del_config))
 
+        return commands
 
-def _compute_commands(want, have, replace=False, remove=False):
-    replace_params = {}
-    remove_params = {}
-    for name, config in want.items():
-        extant = have.get(name, {})
+    @staticmethod
+    def _state_merged(want, have):
+        """ The command generator when state is merged
 
-        if remove:
-            remove_params[name] = dict(set(extant.items()).difference(config.items()))
-        if replace:
-            replace_params[name] = dict(set(config.items()).difference(extant.items()))
-            if remove:
-                # We won't need to also clear the configuration if we've
-                # already set it to something
-                for param in replace_params[name]:
-                    remove_params[name].pop(param, None)
+        :rtype: A list
+        :returns: the commands necessary to merge the provided into
+                  the current configuration
+        """
+        commands = []
+        for key, desired in want.items():
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
+            else:
+                extant = dict()
 
-    returns = {}
-    if replace:
-        returns['replace'] = _replace_config(replace_params)
-    if remove:
-        returns['remove'] = _remove_config(remove_params)
+            add_config = dict_diff(extant, desired)
 
-    return returns
+            commands.extend(generate_commands(key, add_config, {}))
 
+        return commands
 
-def _remove_config(params):
-    """
-    Generates commands to reset config to defaults based on keys provided.
-    """
-    commands = {}
-    for interface, config in params.items():
-        interface_commands = []
-        for param in config:
-            if param == 'enabled':
-                interface_commands.append('no shutdown')
-            elif param in ('description', 'mtu'):
-                interface_commands.append('no {0}'.format(param))
-            elif param == 'speed':
-                interface_commands.append('speed auto')
-        if interface_commands:
-            commands[interface] = interface_commands
+    @staticmethod
+    def _state_deleted(want, have):
+        """ The command generator when state is deleted
 
-    return commands
+        :rtype: A list
+        :returns: the commands necessary to remove the current configuration
+                  of the provided objects
+        """
+        commands = []
+        for key in want:
+            desired = dict()
+            if key in have:
+                extant = have[key]
+            else:
+                continue
 
+            del_config = dict_diff(desired, extant)
 
-def _replace_config(params):
-    """
-    Generates commands to replace config to new values based on provided dictionary.
-    """
-    commands = {}
-    for interface, config in params.items():
-        interface_commands = []
-        for param, state in config.items():
-            if param == 'description':
-                interface_commands.append('description "{0}"'.format(state))
-            elif param == 'enabled':
-                interface_commands.append('{0}shutdown'.format('no ' if state else ''))
-            elif param == 'mtu':
-                interface_commands.append('mtu {0}'.format(state))
-        if 'speed' in config:
-            interface_commands.append('speed {0}{1}'.format(config['speed'], config['duplex']))
-        if interface_commands:
-            commands[interface] = interface_commands
+            commands.extend(generate_commands(key, {}, del_config))
 
-    return commands
+        return commands
 
 
-def _flatten_commands(command_dict):
+def generate_commands(interface, to_set, to_remove):
     commands = []
-    for interface, interface_commands in command_dict.items():
-        commands.append('interface {0}'.format(interface))
-        commands.extend(interface_commands)
+    for key, value in to_set.items():
+        if value is None:
+            continue
+
+        if key == "enabled":
+            commands.append('{0}shutdown'.format('no ' if value else ''))
+        elif key == "speed":
+            if value == "auto":
+                commands.append("{0} {1}".format(key, value))
+            else:
+                commands.append('speed {0}{1}'.format(value, to_set['duplex']))
+        elif key == "duplex":
+            # duplex is handled with speed
+            continue
+        else:
+            commands.append("{0} {1}".format(key, value))
+
+        # Don't try to also remove the same key, if present in to_remove
+        to_remove.pop(key, None)
+
+    for key in to_remove.keys():
+        if key == "enabled":
+            commands.append('no shutdown')
+        elif key == "speed":
+            commands.append("speed auto")
+        elif key == "duplex":
+            # duplex is handled with speed
+            continue
+        else:
+            commands.append("no {0}".format(key))
+
+    if commands:
+        commands.insert(0, "interface {0}".format(interface))
 
     return commands
diff --git a/lib/ansible/module_utils/network/eos/config/l2_interfaces/l2_interfaces.py b/lib/ansible/module_utils/network/eos/config/l2_interfaces/l2_interfaces.py
index 519453d610609f..71d7bf20e6791f 100644
--- a/lib/ansible/module_utils/network/eos/config/l2_interfaces/l2_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/config/l2_interfaces/l2_interfaces.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
-# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 """
 The eos_l2_interfaces class
 It is in this file where the current configuration (as dict)
@@ -12,10 +13,10 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.module_utils.network.common.utils import to_list
-
 from ansible.module_utils.network.common.cfg.base import ConfigBase
+from ansible.module_utils.network.common.utils import to_list, param_list_to_dict
 from ansible.module_utils.network.eos.facts.facts import Facts
+from ansible.module_utils.network.eos.utils.utils import normalize_interface
 
 
 class L2_interfaces(ConfigBase):
@@ -94,6 +95,8 @@ def set_state(self, want, have):
                   to the desired configuration
         """
         state = self._module.params['state']
+        want = param_list_to_dict(want)
+        have = param_list_to_dict(have)
         if state == 'overridden':
             commands = self._state_overridden(want, have)
         elif state == 'deleted':
@@ -113,15 +116,20 @@ def _state_replaced(want, have):
                   to the desired configuration
         """
         commands = []
-        for interface in want:
-            for extant in have:
-                if extant['name'] == interface['name']:
-                    break
+        for key, desired in want.items():
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                continue
+                extant = dict()
+
+            intf_commands = set_interface(desired, extant)
+            intf_commands.extend(clear_interface(desired, extant))
+
+            if intf_commands:
+                commands.append("interface {0}".format(interface_name))
+                commands.extend(intf_commands)
 
-            commands.extend(clear_interface(interface, extant))
-            commands.extend(set_interface(interface, extant))
         return commands
 
     @staticmethod
@@ -133,19 +141,19 @@ def _state_overridden(want, have):
                   to the desired configuration
         """
         commands = []
-        for extant in have:
-            for interface in want:
-                if extant['name'] == interface['name']:
-                    break
+        for key, extant in have.items():
+            if key in want:
+                desired = want[key]
             else:
-                # We didn't find a matching desired state, which means we can
-                # pretend we recieved an empty desired state.
-                interface = dict(name=extant['name'])
-                commands.extend(clear_interface(interface, extant))
-                continue
+                desired = dict()
+
+            intf_commands = set_interface(desired, extant)
+            intf_commands.extend(clear_interface(desired, extant))
+
+            if intf_commands:
+                commands.append("interface {0}".format(key))
+                commands.extend(intf_commands)
 
-            commands.extend(clear_interface(interface, extant))
-            commands.extend(set_interface(interface, extant))
         return commands
 
     @staticmethod
@@ -157,14 +165,18 @@ def _state_merged(want, have):
                   the current configuration
         """
         commands = []
-        for interface in want:
-            for extant in have:
-                if extant['name'] == interface['name']:
-                    break
+        for key, desired in want.items():
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                continue
+                extant = dict()
+
+            intf_commands = set_interface(desired, extant)
 
-            commands.extend(set_interface(interface, extant))
+            if intf_commands:
+                commands.append("interface {0}".format(interface_name))
+                commands.extend(intf_commands)
 
         return commands
 
@@ -177,29 +189,31 @@ def _state_deleted(want, have):
                   of the provided objects
         """
         commands = []
-        for interface in want:
-            for extant in have:
-                if extant['name'] == interface['name']:
-                    break
+        for key in want:
+            desired = dict()
+            if key in have:
+                extant = have[key]
             else:
                 continue
 
-            # Use an empty configuration, just in case
-            interface = dict(name=interface['name'])
-            commands.extend(clear_interface(interface, extant))
+            intf_commands = clear_interface(desired, extant)
+
+            if intf_commands:
+                commands.append("interface {0}".format(key))
+                commands.extend(intf_commands)
 
         return commands
 
 
 def set_interface(want, have):
     commands = []
-    wants_access = want["access"]
+    wants_access = want.get("access")
     if wants_access:
         access_vlan = wants_access.get("vlan")
         if access_vlan and access_vlan != have.get("access", {}).get("vlan"):
             commands.append("switchport access vlan {0}".format(access_vlan))
 
-    wants_trunk = want["trunk"]
+    wants_trunk = want.get("trunk")
     if wants_trunk:
         has_trunk = have.get("trunk", {})
         native_vlan = wants_trunk.get("native_vlan")
@@ -210,9 +224,6 @@ def set_interface(want, have):
         if allowed_vlans:
             allowed_vlans = ','.join(allowed_vlans)
             commands.append("switchport trunk allowed vlan {0}".format(allowed_vlans))
-
-    if commands:
-        commands.insert(0, "interface {0}".format(want['name']))
     return commands
 
 
@@ -227,7 +238,4 @@ def clear_interface(want, have):
         commands.append("no switchport trunk allowed vlan")
     if "native_vlan" in has_trunk and "native_vlan" not in wants_trunk:
         commands.append("no switchport trunk native vlan")
-
-    if commands:
-        commands.insert(0, "interface {0}".format(want["name"]))
     return commands
diff --git a/lib/ansible/module_utils/network/eos/config/l3_interfaces/l3_interfaces.py b/lib/ansible/module_utils/network/eos/config/l3_interfaces/l3_interfaces.py
index e60d7232e488d0..08af1996fcbeca 100644
--- a/lib/ansible/module_utils/network/eos/config/l3_interfaces/l3_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/config/l3_interfaces/l3_interfaces.py
@@ -13,10 +13,10 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-from ansible.module_utils.network.common.utils import to_list
-
 from ansible.module_utils.network.common.cfg.base import ConfigBase
+from ansible.module_utils.network.common.utils import to_list, param_list_to_dict
 from ansible.module_utils.network.eos.facts.facts import Facts
+from ansible.module_utils.network.eos.utils.utils import normalize_interface
 
 
 class L3_interfaces(ConfigBase):
@@ -95,6 +95,8 @@ def set_state(self, want, have):
                   to the desired configuration
         """
         state = self._module.params['state']
+        want = param_list_to_dict(want)
+        have = param_list_to_dict(have)
         if state == 'overridden':
             commands = self._state_overridden(want, have)
         elif state == 'deleted':
@@ -114,18 +116,18 @@ def _state_replaced(want, have):
                   to the desired configuration
         """
         commands = []
-        for interface in want:
-            for extant in have:
-                if interface["name"] == extant["name"]:
-                    break
+        for key, desired in want.items():
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                extant = dict(name=interface["name"])
+                extant = dict()
 
-            intf_commands = set_interface(interface, extant)
-            intf_commands.extend(clear_interface(interface, extant))
+            intf_commands = set_interface(desired, extant)
+            intf_commands.extend(clear_interface(desired, extant))
 
             if intf_commands:
-                commands.append("interface {0}".format(interface["name"]))
+                commands.append("interface {0}".format(interface_name))
                 commands.extend(intf_commands)
 
         return commands
@@ -139,22 +141,21 @@ def _state_overridden(want, have):
                   to the desired configuration
         """
         commands = []
-        for extant in have:
-            for interface in want:
-                if extant["name"] == interface["name"]:
-                    break
+        for key, extant in have.items():
+            if key in want:
+                desired = want[key]
             else:
-                interface = dict(name=extant["name"])
-            if interface.get("ipv4"):
-                for ipv4 in interface["ipv4"]:
+                desired = dict()
+            if desired.get("ipv4"):
+                for ipv4 in desired["ipv4"]:
                     if ipv4["secondary"] is None:
                         del ipv4["secondary"]
 
-            intf_commands = set_interface(interface, extant)
-            intf_commands.extend(clear_interface(interface, extant))
+            intf_commands = set_interface(desired, extant)
+            intf_commands.extend(clear_interface(desired, extant))
 
             if intf_commands:
-                commands.append("interface {0}".format(interface["name"]))
+                commands.append("interface {0}".format(key))
                 commands.extend(intf_commands)
 
         return commands
@@ -168,17 +169,17 @@ def _state_merged(want, have):
                   the current configuration
         """
         commands = []
-        for interface in want:
-            for extant in have:
-                if extant["name"] == interface["name"]:
-                    break
+        for key, desired in want.items():
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                extant = dict(name=interface["name"])
+                extant = dict()
 
-            intf_commands = set_interface(interface, extant)
+            intf_commands = set_interface(desired, extant)
 
             if intf_commands:
-                commands.append("interface {0}".format(interface["name"]))
+                commands.append("interface {0}".format(interface_name))
                 commands.extend(intf_commands)
 
         return commands
@@ -192,19 +193,17 @@ def _state_deleted(want, have):
                   of the provided objects
         """
         commands = []
-        for interface in want:
-            for extant in have:
-                if extant["name"] == interface["name"]:
-                    break
+        for key in want:
+            desired = dict()
+            if key in have:
+                extant = have[key]
             else:
                 continue
 
-            # Clearing all args, send empty dictionary
-            interface = dict(name=interface["name"])
-            intf_commands = clear_interface(interface, extant)
+            intf_commands = clear_interface(desired, extant)
 
             if intf_commands:
-                commands.append("interface {0}".format(interface["name"]))
+                commands.append("interface {0}".format(key))
                 commands.extend(intf_commands)
 
         return commands
@@ -244,7 +243,7 @@ def clear_interface(want, have):
     if not want_ipv4:
         commands.append("no ip address")
     else:
-        for address in (have_ipv4 - want_ipv4):
+        for address in have_ipv4 - want_ipv4:
             address = dict(address)
             if "secondary" not in address:
                 address["secondary"] = False
diff --git a/lib/ansible/module_utils/network/eos/config/lacp_interfaces/lacp_interfaces.py b/lib/ansible/module_utils/network/eos/config/lacp_interfaces/lacp_interfaces.py
index 8b057756e8105e..6af98a51ccaa0e 100644
--- a/lib/ansible/module_utils/network/eos/config/lacp_interfaces/lacp_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/config/lacp_interfaces/lacp_interfaces.py
@@ -1,4 +1,3 @@
-#
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
 # GNU General Public License v3.0+
@@ -17,6 +16,7 @@
 from ansible.module_utils.network.common.cfg.base import ConfigBase
 from ansible.module_utils.network.common.utils import to_list, dict_diff, param_list_to_dict
 from ansible.module_utils.network.eos.facts.facts import Facts
+from ansible.module_utils.network.eos.utils.utils import normalize_interface
 
 
 class Lacp_interfaces(ConfigBase):
@@ -33,9 +33,6 @@ class Lacp_interfaces(ConfigBase):
         'lacp_interfaces',
     ]
 
-    def __init__(self, module):
-        super(Lacp_interfaces, self).__init__(module)
-
     def get_lacp_interfaces_facts(self):
         """ Get the 'facts' (the current configuration)
 
@@ -120,8 +117,9 @@ def _state_replaced(want, have):
         """
         commands = []
         for key, desired in want.items():
-            if key in have:
-                extant = have[key]
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
                 extant = dict()
 
@@ -164,8 +162,9 @@ def _state_merged(want, have):
         """
         commands = []
         for key, desired in want.items():
-            if key in have:
-                extant = have[key]
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
                 extant = dict()
 
@@ -184,12 +183,12 @@ def _state_deleted(want, have):
                   of the provided objects
         """
         commands = []
-        for key in want.keys():
+        for key in want:
             desired = dict()
             if key in have:
                 extant = have[key]
             else:
-                extant = dict()
+                continue
 
             del_config = dict_diff(desired, extant)
 
diff --git a/lib/ansible/module_utils/network/eos/config/lag_interfaces/lag_interfaces.py b/lib/ansible/module_utils/network/eos/config/lag_interfaces/lag_interfaces.py
index ec9cbf98a980f0..f9affa404aac0e 100644
--- a/lib/ansible/module_utils/network/eos/config/lag_interfaces/lag_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/config/lag_interfaces/lag_interfaces.py
@@ -17,6 +17,7 @@
 
 from ansible.module_utils.network.common.cfg.base import ConfigBase
 from ansible.module_utils.network.eos.facts.facts import Facts
+from ansible.module_utils.network.eos.utils.utils import normalize_interface
 
 
 class Lag_interfaces(ConfigBase):
@@ -114,11 +115,12 @@ def _state_replaced(want, have):
         """
         commands = []
         for interface in want:
+            interface_name = normalize_interface(interface["name"])
             for extant in have:
-                if extant["name"] == interface["name"]:
+                if extant["name"] == interface_name:
                     break
             else:
-                extant = dict(name=interface["name"])
+                extant = dict(name=interface_name)
 
             commands.extend(set_config(interface, extant))
             commands.extend(remove_config(interface, extant))
@@ -135,18 +137,19 @@ def _state_overridden(want, have):
         commands = []
         for extant in have:
             for interface in want:
-                if interface["name"] == extant["name"]:
+                if normalize_interface(interface["name"]) == extant["name"]:
                     break
             else:
                 interface = dict(name=extant["name"])
             commands.extend(remove_config(interface, extant))
 
         for interface in want:
+            interface_name = normalize_interface(interface["name"])
             for extant in have:
-                if extant["name"] == interface["name"]:
+                if extant["name"] == interface_name:
                     break
             else:
-                extant = dict(name=interface["name"])
+                extant = dict(name=interface_name)
             commands.extend(set_config(interface, extant))
 
         return commands
@@ -160,11 +163,12 @@ def _state_merged(want, have):
         """
         commands = []
         for interface in want:
+            interface_name = normalize_interface(interface["name"])
             for extant in have:
-                if extant["name"] == interface["name"]:
+                if extant["name"] == interface_name:
                     break
             else:
-                extant = dict(name=interface["name"])
+                extant = dict(name=interface_name)
 
             commands.extend(set_config(interface, extant))
 
@@ -179,14 +183,15 @@ def _state_deleted(want, have):
         """
         commands = []
         for interface in want:
+            interface_name = normalize_interface(interface["name"])
             for extant in have:
-                if extant["name"] == interface["name"]:
+                if extant["name"] == interface_name:
                     break
             else:
-                continue
+                extant = dict(name=interface_name)
 
             # Clearing all args, send empty dictionary
-            interface = dict(name=interface["name"])
+            interface = dict(name=interface_name)
             commands.extend(remove_config(interface, extant))
 
         return commands
diff --git a/lib/ansible/module_utils/network/eos/config/lldp_interfaces/lldp_interfaces.py b/lib/ansible/module_utils/network/eos/config/lldp_interfaces/lldp_interfaces.py
index cfa56b554ea7c4..93dcd8db9db146 100644
--- a/lib/ansible/module_utils/network/eos/config/lldp_interfaces/lldp_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/config/lldp_interfaces/lldp_interfaces.py
@@ -1,4 +1,3 @@
-#
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
 # GNU General Public License v3.0+
@@ -17,6 +16,7 @@
 from ansible.module_utils.network.common.cfg.base import ConfigBase
 from ansible.module_utils.network.common.utils import to_list, dict_diff, param_list_to_dict
 from ansible.module_utils.network.eos.facts.facts import Facts
+from ansible.module_utils.network.eos.utils.utils import normalize_interface
 
 
 class Lldp_interfaces(ConfigBase):
@@ -117,15 +117,16 @@ def _state_replaced(want, have):
         """
         commands = []
         for key, desired in want.items():
-            if key in have:
-                extant = have[key]
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                extant = dict(name=key)
+                extant = dict(name=interface_name)
 
             add_config = dict_diff(extant, desired)
             del_config = dict_diff(desired, extant)
 
-            commands.extend(generate_commands(key, add_config, del_config))
+            commands.extend(generate_commands(interface_name, add_config, del_config))
 
         return commands
 
@@ -161,14 +162,15 @@ def _state_merged(want, have):
         """
         commands = []
         for key, desired in want.items():
-            if key in have:
-                extant = have[key]
+            interface_name = normalize_interface(key)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                extant = dict(name=key)
+                extant = dict(name=interface_name)
 
             add_config = dict_diff(extant, desired)
 
-            commands.extend(generate_commands(key, add_config, {}))
+            commands.extend(generate_commands(interface_name, add_config, {}))
 
         return commands
 
@@ -182,15 +184,16 @@ def _state_deleted(want, have):
         """
         commands = []
         for key in want.keys():
-            desired = dict(name=key)
-            if key in have:
-                extant = have[key]
+            interface_name = normalize_interface(key)
+            desired = dict(name=interface_name)
+            if interface_name in have:
+                extant = have[interface_name]
             else:
-                extant = dict(name=key)
+                continue
 
             del_config = dict_diff(desired, extant)
 
-            commands.extend(generate_commands(key, {}, del_config))
+            commands.extend(generate_commands(interface_name, {}, del_config))
 
         return commands
 
diff --git a/lib/ansible/module_utils/network/eos/facts/interfaces/interfaces.py b/lib/ansible/module_utils/network/eos/facts/interfaces/interfaces.py
index 5cfe2a289144c6..5b23e065336917 100644
--- a/lib/ansible/module_utils/network/eos/facts/interfaces/interfaces.py
+++ b/lib/ansible/module_utils/network/eos/facts/interfaces/interfaces.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
-# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 """
 The eos interfaces fact class
 It is in this file the configuration is collected from the device
@@ -40,6 +41,7 @@ def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for interfaces
 
         :param connection: the device connection
+        :param ansible_facts: Facts dictionary
         :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
@@ -55,9 +57,8 @@ def populate_facts(self, connection, ansible_facts, data=None):
                 obj = self.render_config(self.generated_spec, conf)
                 if obj:
                     objs.append(obj)
-        facts = {}
+        facts = {'interfaces': []}
         if objs:
-            facts['interfaces'] = []
             params = utils.validate_config(self.argument_spec, {'config': objs})
             for cfg in params['config']:
                 facts['interfaces'].append(utils.remove_empties(cfg))
diff --git a/lib/ansible/module_utils/network/eos/facts/l2_interfaces/l2_interfaces.py b/lib/ansible/module_utils/network/eos/facts/l2_interfaces/l2_interfaces.py
index 37d76ed9fcac20..d2684a84cbee9c 100644
--- a/lib/ansible/module_utils/network/eos/facts/l2_interfaces/l2_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/facts/l2_interfaces/l2_interfaces.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
-# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 """
 The eos l2_interfaces fact class
 It is in this file the configuration is collected from the device
@@ -39,9 +40,9 @@ def __init__(self, module, subspec='config', options='options'):
     def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for l2_interfaces
 
-        :param module: the module instance
         :param connection: the device connection
-        :param data: previously collected conf
+        :param ansible_facts: Facts dictionary
+        :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
         """
diff --git a/lib/ansible/module_utils/network/eos/facts/l3_interfaces/l3_interfaces.py b/lib/ansible/module_utils/network/eos/facts/l3_interfaces/l3_interfaces.py
index f90a7edc208383..67041729dffee8 100644
--- a/lib/ansible/module_utils/network/eos/facts/l3_interfaces/l3_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/facts/l3_interfaces/l3_interfaces.py
@@ -40,11 +40,11 @@ def __init__(self, module, subspec='config', options='options'):
     def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for l3_interfaces
         :param connection: the device connection
+        :param ansible_facts: Facts dictionary
         :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
         """
-
         if not data:
             data = connection.get('show running-config | section ^interface')
 
diff --git a/lib/ansible/module_utils/network/eos/facts/lacp/lacp.py b/lib/ansible/module_utils/network/eos/facts/lacp/lacp.py
index 1d17c44e885156..720254787d3a44 100644
--- a/lib/ansible/module_utils/network/eos/facts/lacp/lacp.py
+++ b/lib/ansible/module_utils/network/eos/facts/lacp/lacp.py
@@ -41,7 +41,7 @@ def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for lacp
         :param connection: the device connection
         :param ansible_facts: Facts dictionary
-        :param data: previously collected conf
+        :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
         """
diff --git a/lib/ansible/module_utils/network/eos/facts/lacp_interfaces/lacp_interfaces.py b/lib/ansible/module_utils/network/eos/facts/lacp_interfaces/lacp_interfaces.py
index 45efdf35f2d74e..7c1076c5abe0d5 100644
--- a/lib/ansible/module_utils/network/eos/facts/lacp_interfaces/lacp_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/facts/lacp_interfaces/lacp_interfaces.py
@@ -1,4 +1,3 @@
-#
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
 # GNU General Public License v3.0+
@@ -42,7 +41,7 @@ def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for lacp_interfaces
         :param connection: the device connection
         :param ansible_facts: Facts dictionary
-        :param data: previously collected conf
+        :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
         """
diff --git a/lib/ansible/module_utils/network/eos/facts/lag_interfaces/lag_interfaces.py b/lib/ansible/module_utils/network/eos/facts/lag_interfaces/lag_interfaces.py
index 788fbbf8450d24..d93152a01bf262 100644
--- a/lib/ansible/module_utils/network/eos/facts/lag_interfaces/lag_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/facts/lag_interfaces/lag_interfaces.py
@@ -40,6 +40,7 @@ def __init__(self, module, subspec='config', options='options'):
     def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for lag_interfaces
         :param connection: the device connection
+        :param ansible_facts: Facts dictionary
         :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
@@ -69,7 +70,7 @@ def populate_facts(self, connection, ansible_facts, data=None):
                     else:
                         objs[group_name] = obj
         objs = list(objs.values())
-        facts = {}
+        facts = {'lag_interfaces': []}
         if objs:
             params = utils.validate_config(self.argument_spec, {'config': objs})
             facts['lag_interfaces'] = [utils.remove_empties(cfg) for cfg in params['config']]
diff --git a/lib/ansible/module_utils/network/eos/facts/lldp_interfaces/lldp_interfaces.py b/lib/ansible/module_utils/network/eos/facts/lldp_interfaces/lldp_interfaces.py
index 72d35438a8daa6..8fa02697f6be94 100644
--- a/lib/ansible/module_utils/network/eos/facts/lldp_interfaces/lldp_interfaces.py
+++ b/lib/ansible/module_utils/network/eos/facts/lldp_interfaces/lldp_interfaces.py
@@ -1,4 +1,3 @@
-#
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
 # GNU General Public License v3.0+
@@ -42,7 +41,7 @@ def populate_facts(self, connection, ansible_facts, data=None):
         """ Populate the facts for lldp_interfaces
         :param connection: the device connection
         :param ansible_facts: Facts dictionary
-        :param data: previously collected conf
+        :param data: previously collected configuration
         :rtype: dictionary
         :returns: facts
         """
diff --git a/lib/ansible/module_utils/network/eos/utils/__init__.py b/lib/ansible/module_utils/network/eos/utils/__init__.py
new file mode 100644
index 00000000000000..e69de29bb2d1d6
diff --git a/lib/ansible/module_utils/network/eos/utils/utils.py b/lib/ansible/module_utils/network/eos/utils/utils.py
new file mode 100644
index 00000000000000..beb3a6fd2ead0b
--- /dev/null
+++ b/lib/ansible/module_utils/network/eos/utils/utils.py
@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019 Red Hat
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# utils
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+def get_interface_number(name):
+    digits = ''
+    for char in name:
+        if char.isdigit() or char in '/.':
+            digits += char
+    return digits
+
+
+def normalize_interface(name):
+    """Return the normalized interface name
+    """
+    if not name:
+        return None
+
+    if name.lower().startswith('et'):
+        if_type = 'Ethernet'
+    elif name.lower().startswith('lo'):
+        if_type = 'Loopback'
+    elif name.lower().startswith('ma'):
+        if_type = 'Management'
+    elif name.lower().startswith('po'):
+        if_type = 'Port-Channel'
+    elif name.lower().startswith('tu'):
+        if_type = 'Tunnel'
+    elif name.lower().startswith('vl'):
+        if_type = 'Vlan'
+    elif name.lower().startswith('vx'):
+        if_type = 'Vxlan'
+    else:
+        if_type = None
+
+    number_list = name.split(' ')
+    if len(number_list) == 2:
+        number = number_list[-1].strip()
+    else:
+        number = get_interface_number(name)
+
+    if if_type:
+        proper_interface = if_type + number
+    else:
+        proper_interface = name
+
+    return proper_interface
diff --git a/lib/ansible/modules/network/eos/eos_interfaces.py b/lib/ansible/modules/network/eos/eos_interfaces.py
index eae8014060ed7a..9e421264ec9e73 100644
--- a/lib/ansible/modules/network/eos/eos_interfaces.py
+++ b/lib/ansible/modules/network/eos/eos_interfaces.py
@@ -1,7 +1,8 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
 # Copyright 2019 Red Hat
-# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# GNU General Public License v3.0+
+# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 ##############################################
 #                 WARNING                    #
@@ -41,6 +42,10 @@
 short_description: Manages interface attributes of Arista EOS interfaces
 description: ['This module manages the interface attributes of Arista EOS interfaces.']
 author: ['Nathaniel Case (@qalthos)']
+notes:
+- Tested against Arista EOS 4.20.10M
+- This module works with connection C(network_cli). See the
+  L(EOS Platform Options,../network/user_guide/platform_eos.html).
 options:
   config:
     description: The provided configuration
diff --git a/lib/ansible/modules/network/eos/eos_l3_interfaces.py b/lib/ansible/modules/network/eos/eos_l3_interfaces.py
index cf1511450eb679..38f8077c0ea56e 100644
--- a/lib/ansible/modules/network/eos/eos_l3_interfaces.py
+++ b/lib/ansible/modules/network/eos/eos_l3_interfaces.py
@@ -43,7 +43,7 @@
 description: 'This module provides declarative management of Layer 3 interfaces on Arista EOS devices.'
 author: Nathaniel Case (@qalthos)
 notes:
-- 'Tested against vEOS v4.20.x'
+- Tested against Arista EOS 4.20.10M
 - This module works with connection C(network_cli). See the
   L(EOS Platform Options,../network/user_guide/platform_eos.html).
 options:
diff --git a/lib/ansible/modules/network/eos/eos_lacp_interfaces.py b/lib/ansible/modules/network/eos/eos_lacp_interfaces.py
index 0dc120c67b50a9..246c3ed5a222f7 100644
--- a/lib/ansible/modules/network/eos/eos_lacp_interfaces.py
+++ b/lib/ansible/modules/network/eos/eos_lacp_interfaces.py
@@ -43,6 +43,10 @@
 description:
   - This module manages Link Aggregation Control Protocol (LACP) attributes of interfaces on Arista EOS devices.
 author: Nathaniel Case (@Qalthos)
+notes:
+- Tested against Arista EOS 4.20.10M
+- This module works with connection C(network_cli). See the
+  L(EOS Platform Options,../network/user_guide/platform_eos.html).
 options:
   config:
     description: A dictionary of LACP interfaces options.
diff --git a/lib/ansible/modules/network/eos/eos_lag_interfaces.py b/lib/ansible/modules/network/eos/eos_lag_interfaces.py
index e07363428c5771..a82102e29b6662 100644
--- a/lib/ansible/modules/network/eos/eos_lag_interfaces.py
+++ b/lib/ansible/modules/network/eos/eos_lag_interfaces.py
@@ -44,7 +44,7 @@
 description: This module manages attributes of link aggregation groups on Arista EOS devices.
 author: Nathaniel Case (@Qalthos)
 notes:
-- 'Tested against vEOS v4.20.x'
+- Tested against Arista EOS 4.20.10M
 - This module works with connection C(network_cli). See the
   L(EOS Platform Options,../network/user_guide/platform_eos.html).
 options:
diff --git a/lib/ansible/modules/network/eos/eos_lldp_global.py b/lib/ansible/modules/network/eos/eos_lldp_global.py
index dac48647b525ec..e9799a0cd6f163 100644
--- a/lib/ansible/modules/network/eos/eos_lldp_global.py
+++ b/lib/ansible/modules/network/eos/eos_lldp_global.py
@@ -43,6 +43,10 @@
 description:
   - This module manages Global Link Layer Discovery Protocol (LLDP) settings on Arista EOS devices.
 author: Nathaniel Case (@Qalthos)
+notes:
+- Tested against Arista EOS 4.20.10M
+- This module works with connection C(network_cli). See the
+  L(EOS Platform Options,../network/user_guide/platform_eos.html).
 options:
   config:
     description: The provided global LLDP configuration.
diff --git a/lib/ansible/modules/network/eos/eos_lldp_interfaces.py b/lib/ansible/modules/network/eos/eos_lldp_interfaces.py
index 640e519364a482..09e3178849f855 100644
--- a/lib/ansible/modules/network/eos/eos_lldp_interfaces.py
+++ b/lib/ansible/modules/network/eos/eos_lldp_interfaces.py
@@ -43,6 +43,10 @@
 description:
   - This module manages Link Layer Discovery Protocol (LLDP) attributes of interfaces on Arista EOS devices.
 author: Nathaniel Case (@Qalthos)
+notes:
+- Tested against Arista EOS 4.20.10M
+- This module works with connection C(network_cli). See the
+  L(EOS Platform Options,../network/user_guide/platform_eos.html).
 options:
   config:
     description: A dictionary of LLDP interfaces options.
diff --git a/test/integration/targets/eos_lag_interfaces/tests/cli/deleted.yaml b/test/integration/targets/eos_lag_interfaces/tests/cli/deleted.yaml
index 4069fa01915616..dbf63d64bf2a5c 100644
--- a/test/integration/targets/eos_lag_interfaces/tests/cli/deleted.yaml
+++ b/test/integration/targets/eos_lag_interfaces/tests/cli/deleted.yaml
@@ -26,4 +26,4 @@
 
 - assert:
     that:
-      - "'lag_interfaces' not in ansible_facts.network_resources"
+      - "ansible_facts.network_resources.lag_interfaces == []"