diff --git a/packages/platforms/accton/x86-64/asgvolt64/onlp/builds/x86_64_accton_asgvolt64/module/src/sfpi.c b/packages/platforms/accton/x86-64/asgvolt64/onlp/builds/x86_64_accton_asgvolt64/module/src/sfpi.c
index 6b90ce66..25d965d7 100755
--- a/packages/platforms/accton/x86-64/asgvolt64/onlp/builds/x86_64_accton_asgvolt64/module/src/sfpi.c
+++ b/packages/platforms/accton/x86-64/asgvolt64/onlp/builds/x86_64_accton_asgvolt64/module/src/sfpi.c
@@ -36,14 +36,14 @@
 #define MODULE_TXDISABLE_FORMAT         "/sys/bus/i2c/devices/%d-00%d/module_tx_disable_%d"
 
 int sfp_map_bus[] ={
-    41,42,43,44,45,46,47,48,
-    49,50,51,52,53,54,55,56,
-    57,58,59,60,61,62,63,64,
-    65,66,67,68,69,70,71,72,
-    73,74,75,76,77,78,79,80,
-    81,82,83,84,85,86,87,88,
-    89,90,91,92,93,94,95,96,
-    97,98,99,100,101,102,103,104,
+    41,42,56,55,43,44,54,53,
+    45,46,52,51,47,48,50,49,
+    57,58,72,71,59,60,70,69, 
+    61,62,68,67,63,64,66,65,
+    73,74,88,87,75,76,86,85,
+    77,78,84,83,79,80,82,81,    
+    89,90,104,103,91,92,102,101,
+    93,94,100,99,95,96,98,97,
     20, 21,
     25, 26, 27, 28, 29, 30, 31, 32,};
 
diff --git a/packages/platforms/accton/x86-64/asgvolt64/platform-config/r0/src/python/x86_64_accton_asgvolt64_r0/__init__.py b/packages/platforms/accton/x86-64/asgvolt64/platform-config/r0/src/python/x86_64_accton_asgvolt64_r0/__init__.py
index 815b2200..6b4e9af0 100755
--- a/packages/platforms/accton/x86-64/asgvolt64/platform-config/r0/src/python/x86_64_accton_asgvolt64_r0/__init__.py
+++ b/packages/platforms/accton/x86-64/asgvolt64/platform-config/r0/src/python/x86_64_accton_asgvolt64_r0/__init__.py
@@ -35,6 +35,25 @@ class OnlPlatform_x86_64_accton_asgvolt64_r0(OnlPlatformAccton,
     MODEL="ASGVOLT64"
     SYS_OBJECT_ID=".volt.64"
 
+    port_map={           
+        1: 0,
+        2: 1,
+        3: 15,
+        4: 14,
+        5: 2,
+        6: 3,
+        7: 13,
+        8: 12,
+        9: 4,
+        10:5, 
+        11:11,
+        12:10,
+        13:6,
+        14:7,
+        15:9,
+        16:8
+    }
+
     def baseconfig(self):
         #self.insmod('ym2651y')
         self.insmod('optoe')
@@ -73,11 +92,19 @@ class OnlPlatform_x86_64_accton_asgvolt64_r0(OnlPlatformAccton,
         # initialize XFP port 1~64
         for port in range(41, 105):
             self.new_i2c_device('optoe2', 0x50, port)
-            subprocess.call('echo port%d > /sys/bus/i2c/devices/%d-0050/port_name' % (port-40, port), shell=True)
+        
+        base=41    
+        for port in range(1, 65):
+            q=port/16
+            r=port%16
+            if r==0:
+                r=16
+		q=q-1
+            bus=base+q*16+self.port_map[r]
+            subprocess.call('echo port%d > /sys/bus/i2c/devices/%d-0050/port_name' % (port, bus), shell=True)
             
         # initialize QSFP port 1~2 (port_name=port65~66)
         for port in range(20, 22):
-            self.new_i2c_device('optoe1', 0x50, port)
             self.new_i2c_device('optoe1', 0x50, port)
             subprocess.call('echo port%d > /sys/bus/i2c/devices/%d-0050/port_name' % (port+45, port), shell=True)