diff --git a/src/apis/domain/biz/diag/ndm-switch-diag-info.ts b/src/apis/domain/biz/diag/ndm-switch-diag-info.ts
index aea0e4f..d0f20fc 100644
--- a/src/apis/domain/biz/diag/ndm-switch-diag-info.ts
+++ b/src/apis/domain/biz/diag/ndm-switch-diag-info.ts
@@ -10,12 +10,12 @@ export interface NdmSwitchDiagInfo {
 }
 
 export interface NdmSwitchPortInfo {
-  flow: number;
   inBytes: number;
-  inFlow: number;
   lastInBytes: number;
   lastOutBytes: number;
   outBytes: number;
+  flow: number;
+  inFlow: number;
   outFlow: number;
   portName: string;
   upDown: number;
diff --git a/src/components/helper/switch-port.ts b/src/components/helper/switch-port.ts
index 850fc91..12cab56 100644
--- a/src/components/helper/switch-port.ts
+++ b/src/components/helper/switch-port.ts
@@ -1,5 +1,4 @@
 import type { NdmSwitchPortInfo } from '@/apis';
-import { JAVA_UNSIGNED_INTEGER_MAX_VALUE, NDM_SWITCH_PROBE_INTERVAL } from '@/constants';
 
 export const getPortStatusVal = (portInfo: NdmSwitchPortInfo): string => {
   const { upDown } = portInfo;
@@ -7,47 +6,21 @@ export const getPortStatusVal = (portInfo: NdmSwitchPortInfo): string => {
 };
 
 export const transformPortSpeed = (portInfo: NdmSwitchPortInfo, type: 'in' | 'out' | 'total'): string => {
-  const units = ['B/s', 'KB/s', 'MB/s', 'GB/s', 'TB/s'];
-  const { inBytes, lastInBytes, outBytes, lastOutBytes, inFlow, outFlow, flow } = portInfo;
+  const units = ['b/s', 'Kb/s', 'Mb/s', 'Gb/s', 'Tb/s'];
+  const { inFlow, outFlow, flow } = portInfo;
   let result: number = 0;
-  if (inFlow && outFlow && flow) {
-    if (type === 'in') {
-      result = inFlow;
-    }
-    if (type === 'out') {
-      result = outFlow;
-    }
-    if (type === 'total') {
-      result = flow;
-    }
-  } else {
-    let dInBytes = 0;
-    let dOutBytes = 0;
-    if (inBytes < lastInBytes) {
-      dInBytes = inBytes + JAVA_UNSIGNED_INTEGER_MAX_VALUE - lastInBytes;
-    } else {
-      dInBytes = inBytes - lastInBytes;
-    }
-    if (outBytes < lastOutBytes) {
-      dOutBytes = outBytes + JAVA_UNSIGNED_INTEGER_MAX_VALUE - lastOutBytes;
-    } else {
-      dOutBytes = outBytes - lastOutBytes;
-    }
-    if (type === 'in') {
-      result = dInBytes;
-    }
-    if (type === 'out') {
-      result = dOutBytes;
-    }
-    if (type === 'total') {
-      result = dInBytes + dOutBytes;
-    }
-    result /= NDM_SWITCH_PROBE_INTERVAL;
+  if (type === 'in') {
+    result = inFlow;
+  } else if (type === 'out') {
+    result = outFlow;
+  } else if (type === 'total') {
+    result = flow;
   }
   let index = 0;
   while (result >= 1024 && index < units.length - 1) {
     result /= 1024;
     index++;
   }
+  result *= 8;
   return `${result.toFixed(3)} ${units[index]}`;
 };
diff --git a/src/constants/device.ts b/src/constants/device.ts
deleted file mode 100644
index 8a04aa8..0000000
--- a/src/constants/device.ts
+++ /dev/null
@@ -1 +0,0 @@
-export const NDM_SWITCH_PROBE_INTERVAL = 5;
diff --git a/src/constants/index.ts b/src/constants/index.ts
index 12193b9..3da1f11 100644
--- a/src/constants/index.ts
+++ b/src/constants/index.ts
@@ -1,4 +1,2 @@
-export * from './device';
-export * from './java';
 export * from './query';
 export * from './stomp';
diff --git a/src/constants/java.ts b/src/constants/java.ts
deleted file mode 100644
index ccbb768..0000000
--- a/src/constants/java.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export const JAVA_INTEGER_MAX_VALUE = 2147483647;
-export const JAVA_UNSIGNED_INTEGER_MAX_VALUE = 4294967295;