diff --git a/netpfga/minip4/simple_sume_switch/bitfiles/program_switch.sh b/netpfga/minip4/simple_sume_switch/bitfiles/program_switch.sh
old mode 100644
new mode 100755
diff --git a/p4src/minip4_solution.p4 b/p4src/minip4_solution.p4
index bed75ed..787874d 100644
--- a/p4src/minip4_solution.p4
+++ b/p4src/minip4_solution.p4
@@ -9,7 +9,10 @@
 //     bit<16> etherType;
 // }
 
-typedef struct headers Parsed_packet;
+//typedef struct headers Parsed_packet;
+
+#define Parsed_packet headers
+#define user_metadata_t metadata
 
 //struct Parsed_packet {
 //    Ethernet_h ethernet;
@@ -17,9 +20,9 @@ typedef struct headers Parsed_packet;
 
 // user defined metadata: can be used to share information between
 // TopParser, TopPipe, and TopDeparser
-struct user_metadata_t {
-    bit<8>  unused;
-}
+//struct user_metadata_t {
+//    bit<8>  unused;
+//}
 
 // digest_data, MUST be 256 bits -- what is this used for?
 struct digest_data_t {
@@ -38,7 +41,7 @@ parser RealParser(
 
      state start {
         packet.extract(hdr.ethernet);
-        meta.unused = 0;
+//        meta.unused = 0;
         digest_data.unused = 0;
         transition accept;
     }
@@ -73,9 +76,9 @@ control RealMain(
     #include "actions_nat64_generic.p4"
 
     action swap_eth_addresses() {
-        EthAddr_t temp = hdr.ethernet.dstAddr;
-        hdr.ethernet.dstAddr = hdr.ethernet.srcAddr;
-        hdr.ethernet.srcAddr = temp;
+        mac_addr_t temp = hdr.ethernet.dst_addr;
+        hdr.ethernet.dst_addr = hdr.ethernet.src_addr;
+        hdr.ethernet.src_addr = temp;
 
         /* set egress port */
         sume_metadata.dst_port = sume_metadata.src_port;
@@ -98,12 +101,12 @@ control RealMain(
     }
 
     action do_nothing() {
-        EthAddr_t temp = hdr.ethernet.dstAddr;
+        mac_addr_t temp = hdr.ethernet.dst_addr;
     }
 
     table lookup_table {
         key = {
-            hdr.ethernet.dstAddr: exact;
+            hdr.ethernet.dst_addr: exact;
         }
 
         actions = {