diff --git a/pipelines/fabric/src/main/resources/include/int/int_transit.p4 b/pipelines/fabric/src/main/resources/include/int/int_transit.p4
new file mode 100644
index 0000000..4d4568b
--- /dev/null
+++ b/pipelines/fabric/src/main/resources/include/int/int_transit.p4
@@ -0,0 +1,389 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* -*- P4_16 -*- */
+#ifndef __INT_TRANSIT__
+#define __INT_TRANSIT__
+control process_int_transit (
+    inout parsed_headers_t hdr,
+    inout fabric_metadata_t fmeta,
+    inout standard_metadata_t smeta) {
+
+    action init_metadata(bit<32> switch_id) {
+        fmeta.int_meta.transit = _TRUE;
+#ifdef _INT_INIT_METADATA
+        // Allow other targets to initialize INT metadata in their own way.
+        _INT_INIT_METADATA
+#else
+        fmeta.int_meta.switch_id = switch_id;
+#endif // _INT_INIT_METADATA
+    }
+
+#ifdef _INT_METADATA_ACTIONS
+    _INT_METADATA_ACTIONS
+#else
+    // Switch ID.
+    action int_set_header_0() {
+        hdr.int_switch_id.setValid();
+        hdr.int_switch_id.switch_id = fmeta.int_meta.switch_id;
+    }
+    // Port IDs.
+    action int_set_header_1() {
+        hdr.int_port_ids.setValid();
+        hdr.int_port_ids.ingress_port_id = (bit<16>) smeta.ingress_port;
+        hdr.int_port_ids.egress_port_id = (bit<16>) smeta.egress_port;
+    }
+    // Hop latency.
+    action int_set_header_2() {
+        hdr.int_hop_latency.setValid();
+        hdr.int_hop_latency.hop_latency = (bit<32>) smeta.deq_timedelta;
+    }
+    // Queue occupancy.
+    action int_set_header_3() {
+        hdr.int_q_occupancy.setValid();
+        // TODO: support queues in BMv2. ATM we assume only one.
+        hdr.int_q_occupancy.q_id = 8w0;
+        hdr.int_q_occupancy.q_occupancy = (bit<24>) smeta.deq_qdepth;
+    }
+    // Ingress timestamp.
+    action int_set_header_4() {
+        hdr.int_ingress_tstamp.setValid();
+        hdr.int_ingress_tstamp.ingress_tstamp = (bit<32>) smeta.enq_timestamp;
+    }
+    // Egress timestamp.
+    action int_set_header_5() {
+        hdr.int_egress_tstamp.setValid();
+        hdr.int_egress_tstamp.egress_tstamp = (bit<32>) smeta.enq_timestamp + (bit<32>) smeta.deq_timedelta;
+    }
+    // Queue congestion.
+    action int_set_header_6() {
+        hdr.int_q_congestion.setValid();
+        // TODO: support queue congestion.
+        hdr.int_q_congestion.q_id = 8w0;
+        hdr.int_q_congestion.q_congestion = 24w0;
+    }
+    // Egress port utilization.
+    action int_set_header_7() {
+        hdr.int_egress_tx_util.setValid();
+        // TODO: implement tx utilization support in BMv2.
+        hdr.int_egress_tx_util.egress_port_tx_util = 32w0;
+    }
+#endif // _INT_METADATA_ACTIONS
+
+    // Actions to keep track of the new metadata added.
+    action add_1() {
+        fmeta.int_meta.new_words = fmeta.int_meta.new_words + 1;
+        fmeta.int_meta.new_bytes = fmeta.int_meta.new_bytes + 4;
+    }
+
+    action add_2() {
+        fmeta.int_meta.new_words = fmeta.int_meta.new_words + 2;
+        fmeta.int_meta.new_bytes = fmeta.int_meta.new_bytes + 8;
+    }
+
+    action add_3() {
+        fmeta.int_meta.new_words = fmeta.int_meta.new_words + 3;
+        fmeta.int_meta.new_bytes = fmeta.int_meta.new_bytes + 12;
+    }
+
+    action add_4() {
+        fmeta.int_meta.new_words = fmeta.int_meta.new_words + 4;
+        fmeta.int_meta.new_bytes = fmeta.int_meta.new_bytes + 16;
+    }
+
+    // Action function for bits 0-3 combinations, 0 is msb, 3 is lsb.
+    // Each bit set indicates that corresponding INT header should be added.
+    action int_set_header_0003_i0() {
+    }
+    action int_set_header_0003_i1() {
+        int_set_header_3();
+        add_1();
+    }
+    action int_set_header_0003_i2() {
+        int_set_header_2();
+        add_1();
+    }
+    action int_set_header_0003_i3() {
+        int_set_header_3();
+        int_set_header_2();
+        add_2();
+    }
+    action int_set_header_0003_i4() {
+        int_set_header_1();
+        add_1();
+    }
+    action int_set_header_0003_i5() {
+        int_set_header_3();
+        int_set_header_1();
+        add_2();
+    }
+    action int_set_header_0003_i6() {
+        int_set_header_2();
+        int_set_header_1();
+        add_2();
+    }
+    action int_set_header_0003_i7() {
+        int_set_header_3();
+        int_set_header_2();
+        int_set_header_1();
+        add_3();
+    }
+    action int_set_header_0003_i8() {
+        int_set_header_0();
+        add_1();
+    }
+    action int_set_header_0003_i9() {
+        int_set_header_3();
+        int_set_header_0();
+        add_2();
+    }
+    action int_set_header_0003_i10() {
+        int_set_header_2();
+        int_set_header_0();
+        add_2();
+    }
+    action int_set_header_0003_i11() {
+        int_set_header_3();
+        int_set_header_2();
+        int_set_header_0();
+        add_3();
+    }
+    action int_set_header_0003_i12() {
+        int_set_header_1();
+        int_set_header_0();
+        add_2();
+    }
+    action int_set_header_0003_i13() {
+        int_set_header_3();
+        int_set_header_1();
+        int_set_header_0();
+        add_3();
+    }
+    action int_set_header_0003_i14() {
+        int_set_header_2();
+        int_set_header_1();
+        int_set_header_0();
+        add_3();
+    }
+    action int_set_header_0003_i15() {
+        int_set_header_3();
+        int_set_header_2();
+        int_set_header_1();
+        int_set_header_0();
+        add_4();
+    }
+
+    // Action function for bits 4-7 combinations, 4 is msb, 7 is lsb.
+    action int_set_header_0407_i0() {
+    }
+    action int_set_header_0407_i1() {
+        int_set_header_7();
+        add_1();
+    }
+    action int_set_header_0407_i2() {
+        int_set_header_6();
+        add_1();
+    }
+    action int_set_header_0407_i3() {
+        int_set_header_7();
+        int_set_header_6();
+        add_2();
+    }
+    action int_set_header_0407_i4() {
+        int_set_header_5();
+        add_1();
+    }
+    action int_set_header_0407_i5() {
+        int_set_header_7();
+        int_set_header_5();
+        add_2();
+    }
+    action int_set_header_0407_i6() {
+        int_set_header_6();
+        int_set_header_5();
+        add_2();
+    }
+    action int_set_header_0407_i7() {
+        int_set_header_7();
+        int_set_header_6();
+        int_set_header_5();
+        add_3();
+    }
+    action int_set_header_0407_i8() {
+        int_set_header_4();
+        add_1();
+    }
+    action int_set_header_0407_i9() {
+        int_set_header_7();
+        int_set_header_4();
+        add_2();
+    }
+    action int_set_header_0407_i10() {
+        int_set_header_6();
+        int_set_header_4();
+        add_2();
+    }
+    action int_set_header_0407_i11() {
+        int_set_header_7();
+        int_set_header_6();
+        int_set_header_4();
+        add_3();
+    }
+    action int_set_header_0407_i12() {
+        int_set_header_5();
+        int_set_header_4();
+        add_2();
+    }
+    action int_set_header_0407_i13() {
+        int_set_header_7();
+        int_set_header_5();
+        int_set_header_4();
+        add_3();
+    }
+    action int_set_header_0407_i14() {
+        int_set_header_6();
+        int_set_header_5();
+        int_set_header_4();
+        add_3();
+    }
+    action int_set_header_0407_i15() {
+        int_set_header_7();
+        int_set_header_6();
+        int_set_header_5();
+        int_set_header_4();
+        add_4();
+    }
+
+    // Default action used to set switch ID.
+    table tb_int_insert {
+        key = {}
+        actions = {
+            init_metadata;
+        }
+        size = 0;
+    }
+
+    // Table to process instruction bits 0-3.
+    table tb_int_inst_0003 {
+        key = {
+            hdr.int_header.instruction_mask_0003 : exact;
+        }
+        actions = {
+            int_set_header_0003_i0;
+            int_set_header_0003_i1;
+            int_set_header_0003_i2;
+            int_set_header_0003_i3;
+            int_set_header_0003_i4;
+            int_set_header_0003_i5;
+            int_set_header_0003_i6;
+            int_set_header_0003_i7;
+            int_set_header_0003_i8;
+            int_set_header_0003_i9;
+            int_set_header_0003_i10;
+            int_set_header_0003_i11;
+            int_set_header_0003_i12;
+            int_set_header_0003_i13;
+            int_set_header_0003_i14;
+            int_set_header_0003_i15;
+        }
+        size = 16;
+        const entries = {
+            (0x0) : int_set_header_0003_i0();
+            (0x1) : int_set_header_0003_i1();
+            (0x2) : int_set_header_0003_i2();
+            (0x3) : int_set_header_0003_i3();
+            (0x4) : int_set_header_0003_i4();
+            (0x5) : int_set_header_0003_i5();
+            (0x6) : int_set_header_0003_i6();
+            (0x7) : int_set_header_0003_i7();
+            (0x8) : int_set_header_0003_i8();
+            (0x9) : int_set_header_0003_i9();
+            (0xA) : int_set_header_0003_i10();
+            (0xB) : int_set_header_0003_i11();
+            (0xC) : int_set_header_0003_i12();
+            (0xD) : int_set_header_0003_i13();
+            (0xE) : int_set_header_0003_i14();
+            (0xF) : int_set_header_0003_i15();
+        }
+    }
+
+    // Table to process instruction bits 4-7.
+    table tb_int_inst_0407 {
+        key = {
+            hdr.int_header.instruction_mask_0407 : exact;
+        }
+        actions = {
+            int_set_header_0407_i0;
+            int_set_header_0407_i1;
+            int_set_header_0407_i2;
+            int_set_header_0407_i3;
+            int_set_header_0407_i4;
+            int_set_header_0407_i5;
+            int_set_header_0407_i6;
+            int_set_header_0407_i7;
+            int_set_header_0407_i8;
+            int_set_header_0407_i9;
+            int_set_header_0407_i10;
+            int_set_header_0407_i11;
+            int_set_header_0407_i12;
+            int_set_header_0407_i13;
+            int_set_header_0407_i14;
+            int_set_header_0407_i15;
+        }
+        size = 16;
+        const entries = {
+            (0x0) : int_set_header_0407_i0();
+            (0x1) : int_set_header_0407_i1();
+            (0x2) : int_set_header_0407_i2();
+            (0x3) : int_set_header_0407_i3();
+            (0x4) : int_set_header_0407_i4();
+            (0x5) : int_set_header_0407_i5();
+            (0x6) : int_set_header_0407_i6();
+            (0x7) : int_set_header_0407_i7();
+            (0x8) : int_set_header_0407_i8();
+            (0x9) : int_set_header_0407_i9();
+            (0xA) : int_set_header_0407_i10();
+            (0xB) : int_set_header_0407_i11();
+            (0xC) : int_set_header_0407_i12();
+            (0xD) : int_set_header_0407_i13();
+            (0xE) : int_set_header_0407_i14();
+            (0xF) : int_set_header_0407_i15();
+        }
+    }
+
+    apply {
+        tb_int_insert.apply();
+        if (fmeta.int_meta.transit == _FALSE) {
+            return;
+        }
+        tb_int_inst_0003.apply();
+        tb_int_inst_0407.apply();
+        // Increment hop cnt
+        hdr.int_header.total_hop_cnt = hdr.int_header.total_hop_cnt + 1;
+        // Update headers lengths.
+        if (hdr.ipv4.isValid()) {
+            hdr.ipv4.total_len = hdr.ipv4.total_len + fmeta.int_meta.new_bytes;
+        }
+        if (hdr.udp.isValid()) {
+            hdr.udp.len = hdr.udp.len + fmeta.int_meta.new_bytes;
+        }
+        if (hdr.intl4_shim.isValid()) {
+            hdr.intl4_shim.len_words = hdr.intl4_shim.len_words + fmeta.int_meta.new_words;
+        }
+    }
+}
+
+#endif