diff --git a/src/sonic-yang-models/tests/files/sample_config_db.json b/src/sonic-yang-models/tests/files/sample_config_db.json
index d681be39d6a..721a0fa7b42 100644
--- a/src/sonic-yang-models/tests/files/sample_config_db.json
+++ b/src/sonic-yang-models/tests/files/sample_config_db.json
@@ -2461,6 +2461,7 @@
         "MUX_CABLE": {
             "Ethernet4": {
                 "cable_type": "active-active",
+                "prober_type": "software",
                 "server_ipv4": "192.168.0.2/32",
                 "server_ipv6": "fc02:1000::30/128",
                 "soc_ipv4": "192.168.0.3/32",
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests_config/mux_cable.json b/src/sonic-yang-models/tests/yang_model_tests/tests_config/mux_cable.json
index 1a7030a77b0..4a6512d178b 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests_config/mux_cable.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests_config/mux_cable.json
@@ -54,6 +54,7 @@
                     {
                         "ifname": "Ethernet4",
                         "cable_type": "active-active",
+                        "prober_type": "software",
                         "server_ipv4": "192.168.0.2/32",
                         "server_ipv6": "fc02:1000::30/128",
                         "soc_ipv4": "192.168.0.3/32",
diff --git a/src/sonic-yang-models/yang-models/sonic-mux-cable.yang b/src/sonic-yang-models/yang-models/sonic-mux-cable.yang
index c1f51e67eec..7aa533faaaa 100644
--- a/src/sonic-yang-models/yang-models/sonic-mux-cable.yang
+++ b/src/sonic-yang-models/yang-models/sonic-mux-cable.yang
@@ -50,6 +50,15 @@ module sonic-mux-cable {
                     description "SONiC DualToR interface cable type.";
                 }
 
+                leaf prober_type {
+                    type enumeration {
+                        enum hardware;
+                        enum software;
+                    }
+                    default software;
+                    description "DualToR LinkMrgrd Icmp Prober mode.";
+                }
+
                 leaf server_ipv4 {
                     type inet:ipv4-prefix;