diff --git a/manifests/agents/l3.pp b/manifests/agents/l3.pp
index 45eecf3a2..6684e4b8e 100644
--- a/manifests/agents/l3.pp
+++ b/manifests/agents/l3.pp
@@ -94,10 +94,6 @@
 #   (optional) Deprecated. The name of the external bridge
 #   Defaults to $::os_service_default
 #
-# [*router_id*]
-#   (optional) Deprecated. The ID of the external router in neutron
-#   Defaults to $::os_service_default
-#
 class neutron::agents::l3 (
   $package_ensure                   = 'present',
   $enabled                          = true,
@@ -120,7 +116,6 @@ class neutron::agents::l3 (
   $availability_zone                = $::os_service_default,
   # DEPRECATED PARAMETERS
   $external_network_bridge          = $::os_service_default,
-  $router_id                        = $::os_service_default,
 ) {
 
   include ::neutron::deps
@@ -130,10 +125,6 @@ class neutron::agents::l3 (
     warning('parameter external_network_bridge is deprecated')
   }
 
-  if ! is_service_default ($router_id) {
-    warning('parameter router_id is deprecated and will be removed in future release')
-  }
-
   resources { 'neutron_l3_agent_config':
     purge => $purge_config,
   }
@@ -150,7 +141,6 @@ class neutron::agents::l3 (
     'DEFAULT/debug':                            value => $debug;
     'DEFAULT/external_network_bridge':          value => $external_network_bridge;
     'DEFAULT/interface_driver':                 value => $interface_driver;
-    'DEFAULT/router_id':                        value => $router_id;
     'DEFAULT/gateway_external_network_id':      value => $gateway_external_network_id;
     'DEFAULT/handle_internal_only_routers':     value => $handle_internal_only_routers;
     'DEFAULT/metadata_port':                    value => $metadata_port;
diff --git a/releasenotes/notes/remove_router_id-51df87135a4e1725.yaml b/releasenotes/notes/remove_router_id-51df87135a4e1725.yaml
new file mode 100644
index 000000000..4fa835fea
--- /dev/null
+++ b/releasenotes/notes/remove_router_id-51df87135a4e1725.yaml
@@ -0,0 +1,4 @@
+---
+deprecations:
+  - Remove 'router_id' configuration option from the
+    l3_agent.ini file.
diff --git a/spec/classes/neutron_agents_l3_spec.rb b/spec/classes/neutron_agents_l3_spec.rb
index 3762318a9..3f025a16b 100644
--- a/spec/classes/neutron_agents_l3_spec.rb
+++ b/spec/classes/neutron_agents_l3_spec.rb
@@ -39,7 +39,6 @@ describe 'neutron::agents::l3' do
       is_expected.to contain_neutron_l3_agent_config('DEFAULT/debug').with_value(p[:debug])
       is_expected.to contain_neutron_l3_agent_config('DEFAULT/external_network_bridge').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_neutron_l3_agent_config('DEFAULT/interface_driver').with_value(p[:interface_driver])
-      is_expected.to contain_neutron_l3_agent_config('DEFAULT/router_id').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_neutron_l3_agent_config('DEFAULT/gateway_external_network_id').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_neutron_l3_agent_config('DEFAULT/handle_internal_only_routers').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_neutron_l3_agent_config('DEFAULT/metadata_port').with_value('<SERVICE DEFAULT>')