diff --git a/epan/dissectors/packet-f5ethtrailer.c b/epan/dissectors/packet-f5ethtrailer.c
index 28eaf37470..df6a4a3904 100644
--- a/epan/dissectors/packet-f5ethtrailer.c
+++ b/epan/dissectors/packet-f5ethtrailer.c
@@ -255,8 +255,7 @@ static gint hf_cf_flags      = -1;
 static gint hf_cf_flags2     = -1;
 static gint hf_flow_type     = -1;
 static gint hf_ha_unit       = -1;
-static gint hf_ingress_slot  = -1;
-static gint hf_ingress_port  = -1;
+static gint hf_reserved      = -1;
 static gint hf_priority      = -1;
 static gint hf_rstcause      = -1;
 static gint hf_rstcause_len  = -1;
@@ -1873,18 +1872,8 @@ dissect_med_trailer(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, gui
 
     proto_tree_add_item(tree, hf_ha_unit, tvb, o, 1, ENC_BIG_ENDIAN);
     o += 1;
-    if (trailer_ver == 0 && (trailer_length == F5_MEDV94_LEN || trailer_length == F5_MEDV10_LEN)) {
-        proto_tree_add_item(tree, hf_ingress_slot, tvb, o, 2, ENC_LITTLE_ENDIAN);
-        o += 2;
-        proto_tree_add_item(tree, hf_ingress_port, tvb, o, 2, ENC_LITTLE_ENDIAN);
-        o += 2;
-    } else {
-        /* V11 fixed the byte order of these */
-        proto_tree_add_item(tree, hf_ingress_slot, tvb, o, 2, ENC_BIG_ENDIAN);
-        o += 2;
-        proto_tree_add_item(tree, hf_ingress_port, tvb, o, 2, ENC_BIG_ENDIAN);
-        o += 2;
-    }
+    proto_tree_add_item(tree, hf_reserved, tvb, o, 4, ENC_BIG_ENDIAN);
+    o += 4;
     if (trailer_ver >= 2) {
         proto_tree_add_item(tree, hf_priority, tvb, o, 1, ENC_BIG_ENDIAN);
         o += 1;
@@ -2325,10 +2314,8 @@ dissect_dpt_trailer_noise_med(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tre
 
     proto_tree_add_item(tree, hf_ha_unit, tvb, o, 1, ENC_BIG_ENDIAN);
     o += 1;
-    proto_tree_add_item(tree, hf_ingress_slot, tvb, o, 2, ENC_BIG_ENDIAN);
-    o += 2;
-    proto_tree_add_item(tree, hf_ingress_port, tvb, o, 2, ENC_BIG_ENDIAN);
-    o += 2;
+    proto_tree_add_item(tree, hf_reserved, tvb, o, 4, ENC_BIG_ENDIAN);
+    o += 4;
     proto_tree_add_item(tree, hf_priority, tvb, o, 1, ENC_BIG_ENDIAN);
     o += 1;
     if (badrstcauselen) {
@@ -3788,12 +3775,8 @@ proto_register_f5ethtrailer(void)
           { "HA Unit", "f5ethtrailer.haunit", FT_UINT8, BASE_HEX, NULL,
             0x0, NULL, HFILL }
         },
-        { &hf_ingress_slot,
-          { "Ingress Slot", "f5ethtrailer.ingressslot", FT_UINT16, BASE_DEC, NULL,
-            0x0, NULL, HFILL }
-        },
-        { &hf_ingress_port,
-          { "Ingress Port", "f5ethtrailer.ingressport", FT_UINT16, BASE_DEC, NULL,
+        { &hf_reserved,
+          { "Reserved", "f5ethtrailer.reserved", FT_UINT32, BASE_HEX, NULL,
             0x0, NULL, HFILL }
         },
         { &hf_priority,