diff --git a/clients/client-mediaconnect/src/commands/AddBridgeSourcesCommand.ts b/clients/client-mediaconnect/src/commands/AddBridgeSourcesCommand.ts
index ae69de06ced76..2b6c185a34029 100644
--- a/clients/client-mediaconnect/src/commands/AddBridgeSourcesCommand.ts
+++ b/clients/client-mediaconnect/src/commands/AddBridgeSourcesCommand.ts
@@ -48,6 +48,9 @@ export interface AddBridgeSourcesCommandOutput extends AddBridgeSourcesResponse,
  *       },
  *       NetworkSource: { // AddBridgeNetworkSourceRequest
  *         MulticastIp: "STRING_VALUE", // required
+ *         MulticastSourceSettings: { // MulticastSourceSettings
+ *           MulticastSourceIp: "STRING_VALUE",
+ *         },
  *         Name: "STRING_VALUE", // required
  *         NetworkName: "STRING_VALUE", // required
  *         Port: Number("int"), // required
@@ -72,6 +75,9 @@ export interface AddBridgeSourcesCommandOutput extends AddBridgeSourcesResponse,
  * //       },
  * //       NetworkSource: { // BridgeNetworkSource
  * //         MulticastIp: "STRING_VALUE", // required
+ * //         MulticastSourceSettings: { // MulticastSourceSettings
+ * //           MulticastSourceIp: "STRING_VALUE",
+ * //         },
  * //         Name: "STRING_VALUE", // required
  * //         NetworkName: "STRING_VALUE", // required
  * //         Port: Number("int"), // required
diff --git a/clients/client-mediaconnect/src/commands/CreateBridgeCommand.ts b/clients/client-mediaconnect/src/commands/CreateBridgeCommand.ts
index d20eaa876088e..7ca1a3c604226 100644
--- a/clients/client-mediaconnect/src/commands/CreateBridgeCommand.ts
+++ b/clients/client-mediaconnect/src/commands/CreateBridgeCommand.ts
@@ -76,6 +76,9 @@ export interface CreateBridgeCommandOutput extends CreateBridgeResponse, __Metad
  *       },
  *       NetworkSource: { // AddBridgeNetworkSourceRequest
  *         MulticastIp: "STRING_VALUE", // required
+ *         MulticastSourceSettings: { // MulticastSourceSettings
+ *           MulticastSourceIp: "STRING_VALUE",
+ *         },
  *         Name: "STRING_VALUE", // required
  *         NetworkName: "STRING_VALUE", // required
  *         Port: Number("int"), // required
@@ -145,6 +148,9 @@ export interface CreateBridgeCommandOutput extends CreateBridgeResponse, __Metad
  * //         },
  * //         NetworkSource: { // BridgeNetworkSource
  * //           MulticastIp: "STRING_VALUE", // required
+ * //           MulticastSourceSettings: { // MulticastSourceSettings
+ * //             MulticastSourceIp: "STRING_VALUE",
+ * //           },
  * //           Name: "STRING_VALUE", // required
  * //           NetworkName: "STRING_VALUE", // required
  * //           Port: Number("int"), // required
diff --git a/clients/client-mediaconnect/src/commands/DescribeBridgeCommand.ts b/clients/client-mediaconnect/src/commands/DescribeBridgeCommand.ts
index aa85465dae681..e8578102d44bf 100644
--- a/clients/client-mediaconnect/src/commands/DescribeBridgeCommand.ts
+++ b/clients/client-mediaconnect/src/commands/DescribeBridgeCommand.ts
@@ -99,6 +99,9 @@ export interface DescribeBridgeCommandOutput extends DescribeBridgeResponse, __M
  * //         },
  * //         NetworkSource: { // BridgeNetworkSource
  * //           MulticastIp: "STRING_VALUE", // required
+ * //           MulticastSourceSettings: { // MulticastSourceSettings
+ * //             MulticastSourceIp: "STRING_VALUE",
+ * //           },
  * //           Name: "STRING_VALUE", // required
  * //           NetworkName: "STRING_VALUE", // required
  * //           Port: Number("int"), // required
diff --git a/clients/client-mediaconnect/src/commands/UpdateBridgeCommand.ts b/clients/client-mediaconnect/src/commands/UpdateBridgeCommand.ts
index 72e92ba740001..77bb9dccf4227 100644
--- a/clients/client-mediaconnect/src/commands/UpdateBridgeCommand.ts
+++ b/clients/client-mediaconnect/src/commands/UpdateBridgeCommand.ts
@@ -114,6 +114,9 @@ export interface UpdateBridgeCommandOutput extends UpdateBridgeResponse, __Metad
  * //         },
  * //         NetworkSource: { // BridgeNetworkSource
  * //           MulticastIp: "STRING_VALUE", // required
+ * //           MulticastSourceSettings: { // MulticastSourceSettings
+ * //             MulticastSourceIp: "STRING_VALUE",
+ * //           },
  * //           Name: "STRING_VALUE", // required
  * //           NetworkName: "STRING_VALUE", // required
  * //           Port: Number("int"), // required
diff --git a/clients/client-mediaconnect/src/commands/UpdateBridgeSourceCommand.ts b/clients/client-mediaconnect/src/commands/UpdateBridgeSourceCommand.ts
index eb9e0498a8750..367c9d2ffd045 100644
--- a/clients/client-mediaconnect/src/commands/UpdateBridgeSourceCommand.ts
+++ b/clients/client-mediaconnect/src/commands/UpdateBridgeSourceCommand.ts
@@ -45,6 +45,9 @@ export interface UpdateBridgeSourceCommandOutput extends UpdateBridgeSourceRespo
  *   },
  *   NetworkSource: { // UpdateBridgeNetworkSourceRequest
  *     MulticastIp: "STRING_VALUE",
+ *     MulticastSourceSettings: { // MulticastSourceSettings
+ *       MulticastSourceIp: "STRING_VALUE",
+ *     },
  *     NetworkName: "STRING_VALUE",
  *     Port: Number("int"),
  *     Protocol: "zixi-push" || "rtp-fec" || "rtp" || "zixi-pull" || "rist" || "st2110-jpegxs" || "cdi" || "srt-listener" || "srt-caller" || "fujitsu-qos" || "udp",
@@ -66,6 +69,9 @@ export interface UpdateBridgeSourceCommandOutput extends UpdateBridgeSourceRespo
  * //     },
  * //     NetworkSource: { // BridgeNetworkSource
  * //       MulticastIp: "STRING_VALUE", // required
+ * //       MulticastSourceSettings: { // MulticastSourceSettings
+ * //         MulticastSourceIp: "STRING_VALUE",
+ * //       },
  * //       Name: "STRING_VALUE", // required
  * //       NetworkName: "STRING_VALUE", // required
  * //       Port: Number("int"), // required
diff --git a/clients/client-mediaconnect/src/models/models_0.ts b/clients/client-mediaconnect/src/models/models_0.ts
index 090b525516fe3..81424da6f4231 100644
--- a/clients/client-mediaconnect/src/models/models_0.ts
+++ b/clients/client-mediaconnect/src/models/models_0.ts
@@ -116,6 +116,18 @@ export interface AddBridgeFlowSourceRequest {
   Name: string | undefined;
 }
 
+/**
+ * The settings related to the multicast source.
+ * @public
+ */
+export interface MulticastSourceSettings {
+  /**
+   * The IP address of the source for source-specific multicast (SSM).
+   * @public
+   */
+  MulticastSourceIp?: string | undefined;
+}
+
 /**
  * Add a network source to an existing bridge.
  * @public
@@ -127,6 +139,12 @@ export interface AddBridgeNetworkSourceRequest {
    */
   MulticastIp: string | undefined;
 
+  /**
+   * The settings related to the multicast source.
+   * @public
+   */
+  MulticastSourceSettings?: MulticastSourceSettings | undefined;
+
   /**
    * The name of the network source. This name is used to reference the source and must be unique among sources in this bridge.
    * @public
@@ -814,6 +832,12 @@ export interface BridgeNetworkSource {
    */
   MulticastIp: string | undefined;
 
+  /**
+   * The settings related to the multicast source.
+   * @public
+   */
+  MulticastSourceSettings?: MulticastSourceSettings | undefined;
+
   /**
    * The name of the network source.
    * @public
@@ -4799,6 +4823,12 @@ export interface UpdateBridgeNetworkSourceRequest {
    */
   MulticastIp?: string | undefined;
 
+  /**
+   * The settings related to the multicast source.
+   * @public
+   */
+  MulticastSourceSettings?: MulticastSourceSettings | undefined;
+
   /**
    * The network source's gateway network name.
    * @public
diff --git a/clients/client-mediaconnect/src/protocols/Aws_restJson1.ts b/clients/client-mediaconnect/src/protocols/Aws_restJson1.ts
index 5d3b3ff682afc..a28406aa58bae 100644
--- a/clients/client-mediaconnect/src/protocols/Aws_restJson1.ts
+++ b/clients/client-mediaconnect/src/protocols/Aws_restJson1.ts
@@ -191,6 +191,7 @@ import {
   MessageDetail,
   Messages,
   MonitoringConfig,
+  MulticastSourceSettings,
   NotFoundException,
   Offering,
   Output,
@@ -2900,6 +2901,7 @@ const se_AddBridgeNetworkOutputRequest = (input: AddBridgeNetworkOutputRequest,
 const se_AddBridgeNetworkSourceRequest = (input: AddBridgeNetworkSourceRequest, context: __SerdeContext): any => {
   return take(input, {
     multicastIp: [, , `MulticastIp`],
+    multicastSourceSettings: [, (_) => se_MulticastSourceSettings(_, context), `MulticastSourceSettings`],
     name: [, , `Name`],
     networkName: [, , `NetworkName`],
     port: [, , `Port`],
@@ -3158,6 +3160,15 @@ const se_MonitoringConfig = (input: MonitoringConfig, context: __SerdeContext):
   });
 };
 
+/**
+ * serializeAws_restJson1MulticastSourceSettings
+ */
+const se_MulticastSourceSettings = (input: MulticastSourceSettings, context: __SerdeContext): any => {
+  return take(input, {
+    multicastSourceIp: [, , `MulticastSourceIp`],
+  });
+};
+
 /**
  * serializeAws_restJson1SetGatewayBridgeSourceRequest
  */
@@ -3237,6 +3248,7 @@ const se_UpdateBridgeNetworkOutputRequest = (input: UpdateBridgeNetworkOutputReq
 const se_UpdateBridgeNetworkSourceRequest = (input: UpdateBridgeNetworkSourceRequest, context: __SerdeContext): any => {
   return take(input, {
     multicastIp: [, , `MulticastIp`],
+    multicastSourceSettings: [, (_) => se_MulticastSourceSettings(_, context), `MulticastSourceSettings`],
     networkName: [, , `NetworkName`],
     port: [, , `Port`],
     protocol: [, , `Protocol`],
@@ -3674,6 +3686,7 @@ const de_BridgeNetworkOutput = (output: any, context: __SerdeContext): BridgeNet
 const de_BridgeNetworkSource = (output: any, context: __SerdeContext): BridgeNetworkSource => {
   return take(output, {
     MulticastIp: [, __expectString, `multicastIp`],
+    MulticastSourceSettings: [, (_: any) => de_MulticastSourceSettings(_, context), `multicastSourceSettings`],
     Name: [, __expectString, `name`],
     NetworkName: [, __expectString, `networkName`],
     Port: [, __expectInt32, `port`],
@@ -4062,6 +4075,15 @@ const de_MonitoringConfig = (output: any, context: __SerdeContext): MonitoringCo
   }) as any;
 };
 
+/**
+ * deserializeAws_restJson1MulticastSourceSettings
+ */
+const de_MulticastSourceSettings = (output: any, context: __SerdeContext): MulticastSourceSettings => {
+  return take(output, {
+    MulticastSourceIp: [, __expectString, `multicastSourceIp`],
+  }) as any;
+};
+
 /**
  * deserializeAws_restJson1Offering
  */
diff --git a/codegen/sdk-codegen/aws-models/mediaconnect.json b/codegen/sdk-codegen/aws-models/mediaconnect.json
index b936fdce4cdf2..e429fcab6ff1e 100644
--- a/codegen/sdk-codegen/aws-models/mediaconnect.json
+++ b/codegen/sdk-codegen/aws-models/mediaconnect.json
@@ -137,6 +137,12 @@
             "smithy.api#required": {}
           }
         },
+        "MulticastSourceSettings": {
+          "target": "com.amazonaws.mediaconnect#MulticastSourceSettings",
+          "traits": {
+            "smithy.api#jsonName": "multicastSourceSettings"
+          }
+        },
         "Name": {
           "target": "com.amazonaws.mediaconnect#__string",
           "traits": {
@@ -1276,6 +1282,12 @@
             "smithy.api#required": {}
           }
         },
+        "MulticastSourceSettings": {
+          "target": "com.amazonaws.mediaconnect#MulticastSourceSettings",
+          "traits": {
+            "smithy.api#jsonName": "multicastSourceSettings"
+          }
+        },
         "Name": {
           "target": "com.amazonaws.mediaconnect#__string",
           "traits": {
@@ -6592,6 +6604,21 @@
         "smithy.api#documentation": "The settings for source monitoring."
       }
     },
+    "com.amazonaws.mediaconnect#MulticastSourceSettings": {
+      "type": "structure",
+      "members": {
+        "MulticastSourceIp": {
+          "target": "com.amazonaws.mediaconnect#__string",
+          "traits": {
+            "smithy.api#documentation": "The IP address of the source for source-specific multicast (SSM).",
+            "smithy.api#jsonName": "multicastSourceIp"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#documentation": "The settings related to the multicast source."
+      }
+    },
     "com.amazonaws.mediaconnect#NetworkInterfaceType": {
       "type": "enum",
       "members": {
@@ -9004,6 +9031,12 @@
             "smithy.api#jsonName": "multicastIp"
           }
         },
+        "MulticastSourceSettings": {
+          "target": "com.amazonaws.mediaconnect#MulticastSourceSettings",
+          "traits": {
+            "smithy.api#jsonName": "multicastSourceSettings"
+          }
+        },
         "NetworkName": {
           "target": "com.amazonaws.mediaconnect#__string",
           "traits": {