diff --git a/src/app/page.tsx b/src/app/page.tsx
index 147bcd0..4cc4ce1 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -4,8 +4,8 @@ import { useRef, useState } from 'react';
 import { useReport } from '@/hooks/useReport';
 import ReportHeader from '@/components/report/ReportHeader';
 import SummaryCards from '@/components/report/SummaryCards';
-import TimeSeriesChart from '@/components/charts/TimeSeriesChart';
-import NetworkChart from '@/components/charts/NetworkChart';
+import TimeSeriesChart, { type ChartHandle } from '@/components/charts/TimeSeriesChart';
+import NetworkChart, { type NetworkChartHandle } from '@/components/charts/NetworkChart';
 import NodeTable from '@/components/report/NodeTable';
 import NasTable from '@/components/report/NasTable';
 import NetworkTable from '@/components/report/NetworkTable';
@@ -32,6 +32,13 @@ export default function Home() {
   const reportRef = useRef<HTMLDivElement>(null);
   const isDirty = startDate !== appliedStart || endDate !== appliedEnd;
 
+  const cpuChartRef = useRef<ChartHandle>(null);
+  const memChartRef = useRef<ChartHandle>(null);
+  const diskChartRef = useRef<ChartHandle>(null);
+  const nasChartRef = useRef<ChartHandle>(null);
+  const ingressChartRef = useRef<NetworkChartHandle>(null);
+  const istioChartRef = useRef<NetworkChartHandle>(null);
+
   const applyRange = () => {
     setAppliedStart(startDate);
     setAppliedEnd(endDate);
@@ -149,55 +156,55 @@ export default function Home() {
 
         <div className="grid grid-cols-[1fr_280px] gap-4">
           <ErrorBoundary fallback="CPU 차트 오류">
-            <TimeSeriesChart title="CPU 사용률" instances={data.metrics.cpu} unit="%" />
+            <TimeSeriesChart ref={cpuChartRef} title="CPU 사용률" instances={data.metrics.cpu} unit="%" />
           </ErrorBoundary>
           <ErrorBoundary fallback="CPU 주의 구간 오류">
-            <AlertPanel instances={data.metrics.cpu} type="cpu" height={300} />
+            <AlertPanel instances={data.metrics.cpu} type="cpu" height={300} onZoomRange={(s, e) => cpuChartRef.current?.zoomToRange(s, e)} />
           </ErrorBoundary>
         </div>
         <div className="grid grid-cols-[1fr_280px] gap-4">
           <ErrorBoundary fallback="Memory 차트 오류">
-            <TimeSeriesChart title="Memory 사용률" instances={data.metrics.memory} unit="%" />
+            <TimeSeriesChart ref={memChartRef} title="Memory 사용률" instances={data.metrics.memory} unit="%" />
           </ErrorBoundary>
           <ErrorBoundary fallback="Memory 주의 구간 오류">
-            <AlertPanel instances={data.metrics.memory} type="memory" height={300} />
+            <AlertPanel instances={data.metrics.memory} type="memory" height={300} onZoomRange={(s, e) => memChartRef.current?.zoomToRange(s, e)} />
           </ErrorBoundary>
         </div>
         <div className="grid grid-cols-[1fr_280px] gap-4">
           <ErrorBoundary fallback="Disk 차트 오류">
-            <TimeSeriesChart title="Disk 사용률" instances={data.metrics.disk} unit="%" />
+            <TimeSeriesChart ref={diskChartRef} title="Disk 사용률" instances={data.metrics.disk} unit="%" />
           </ErrorBoundary>
           <ErrorBoundary fallback="Disk 주의 구간 오류">
-            <AlertPanel instances={data.metrics.disk} type="disk" height={300} />
+            <AlertPanel instances={data.metrics.disk} type="disk" height={300} onZoomRange={(s, e) => diskChartRef.current?.zoomToRange(s, e)} />
           </ErrorBoundary>
         </div>
 
         {data.metrics.nas && data.metrics.nas.length > 0 && (
           <div className="grid grid-cols-[1fr_280px] gap-4">
             <ErrorBoundary fallback="NAS 차트 오류">
-              <TimeSeriesChart title="NAS 사용률" instances={data.metrics.nas} unit="%" />
+              <TimeSeriesChart ref={nasChartRef} title="NAS 사용률" instances={data.metrics.nas} unit="%" />
             </ErrorBoundary>
             <ErrorBoundary fallback="NAS 주의 구간 오류">
-              <AlertPanel instances={data.metrics.nas} type="nas" height={300} />
+              <AlertPanel instances={data.metrics.nas} type="nas" height={300} onZoomRange={(s, e) => nasChartRef.current?.zoomToRange(s, e)} />
             </ErrorBoundary>
           </div>
         )}
 
         <div className="grid grid-cols-[1fr_280px] gap-4">
           <ErrorBoundary fallback="Ingress Network 차트 오류">
-            <NetworkChart title="Ingress Network Traffic" data={data.metrics.ingress} />
+            <NetworkChart ref={ingressChartRef} title="Ingress Network Traffic" data={data.metrics.ingress} />
           </ErrorBoundary>
           <ErrorBoundary fallback="Ingress 주의 구간 오류">
-            <NetworkAlertPanel data={data.metrics.ingress} height={300} />
+            <NetworkAlertPanel data={data.metrics.ingress} height={300} onZoomRange={(s, e) => ingressChartRef.current?.zoomToRange(s, e)} />
           </ErrorBoundary>
         </div>
 
         <div className="grid grid-cols-[1fr_280px] gap-4">
           <ErrorBoundary fallback="Istio Network 차트 오류">
-            <NetworkChart title="Istio Network Traffic" data={data.metrics.istio} />
+            <NetworkChart ref={istioChartRef} title="Istio Network Traffic" data={data.metrics.istio} />
           </ErrorBoundary>
           <ErrorBoundary fallback="Istio 주의 구간 오류">
-            <NetworkAlertPanel data={data.metrics.istio} height={300} />
+            <NetworkAlertPanel data={data.metrics.istio} height={300} onZoomRange={(s, e) => istioChartRef.current?.zoomToRange(s, e)} />
           </ErrorBoundary>
         </div>
 
diff --git a/src/components/charts/NetworkChart.tsx b/src/components/charts/NetworkChart.tsx
index e7bc30b..e99314c 100644
--- a/src/components/charts/NetworkChart.tsx
+++ b/src/components/charts/NetworkChart.tsx
@@ -1,7 +1,7 @@
 'use client';
 
 import dynamic from 'next/dynamic';
-import { useCallback, useRef } from 'react';
+import { useCallback, useImperativeHandle, useRef, forwardRef } from 'react';
 import type { NetworkMetrics } from '@/types/metrics';
 import { formatTimestamp, formatBytes } from '@/lib/formatters';
 
@@ -13,10 +13,31 @@ interface NetworkChartProps {
   height?: number;
 }
 
-export default function NetworkChart({ title = 'Network Traffic', data, height = 300 }: NetworkChartProps) {
+export interface NetworkChartHandle {
+  zoomToRange: (startMs: number, endMs: number) => void;
+}
+
+export default forwardRef<NetworkChartHandle, NetworkChartProps>(function NetworkChart({ title = 'Network Traffic', data, height = 300 }, ref) {
   const chartInstance = useRef<any>(null);
   const soloIndex = useRef<number | null>(null);
 
+  useImperativeHandle(ref, () => ({
+    zoomToRange(startMs: number, endMs: number) {
+      const chart = chartInstance.current;
+      if (!chart) return;
+      const allTimes = [...data.receive, ...data.transmit].flatMap((inst) => inst.dataPoints.map((d) => d.timestamp * 1000));
+      if (allTimes.length === 0) return;
+      const minTime = Math.min(...allTimes);
+      const maxTime = Math.max(...allTimes);
+      const range = maxTime - minTime;
+      if (range === 0) return;
+      const padding = (endMs - startMs) * 0.5;
+      const s = Math.max(0, ((startMs - padding - minTime) / range) * 100);
+      const e = Math.min(100, ((endMs + padding - minTime) / range) * 100);
+      chart.dispatchAction({ type: 'dataZoom', start: s, end: e });
+    },
+  }), [data]);
+
   if (!data.receive.length && !data.transmit.length) {
     return (
       <div className="bg-gray-50 border rounded-lg p-4 text-center text-gray-400 text-sm" style={{ height }}>
@@ -33,6 +54,14 @@ export default function NetworkChart({ title = 'Network Traffic', data, height =
     emphasis: { focus: 'series' as const },
     areaStyle: { opacity: 0.3 },
     data: inst.dataPoints.map((d) => [d.timestamp * 1000, d.value]),
+    markArea: {
+      silent: true,
+      itemStyle: { color: 'rgba(255, 0, 0, 0.08)' },
+      data: inst.peaks.peaks.map((peak) => [
+        { xAxis: peak.startTime * 1000 },
+        { xAxis: peak.endTime * 1000 },
+      ]),
+    },
   }));
 
   const txSeries = data.transmit.map((inst) => ({
@@ -43,6 +72,14 @@ export default function NetworkChart({ title = 'Network Traffic', data, height =
     emphasis: { focus: 'series' as const },
     lineStyle: { type: 'dashed' as const },
     data: inst.dataPoints.map((d) => [d.timestamp * 1000, -d.value]),
+    markArea: {
+      silent: true,
+      itemStyle: { color: 'rgba(255, 0, 0, 0.08)' },
+      data: inst.peaks.peaks.map((peak) => [
+        { xAxis: peak.startTime * 1000 },
+        { xAxis: peak.endTime * 1000 },
+      ]),
+    },
   }));
 
   const allSeries = [...rxSeries, ...txSeries];
@@ -125,4 +162,4 @@ export default function NetworkChart({ title = 'Network Traffic', data, height =
       onEvents={onEvents()}
     />
   );
-}
+});
diff --git a/src/components/charts/TimeSeriesChart.tsx b/src/components/charts/TimeSeriesChart.tsx
index d496e2f..4ee565f 100644
--- a/src/components/charts/TimeSeriesChart.tsx
+++ b/src/components/charts/TimeSeriesChart.tsx
@@ -1,7 +1,7 @@
 'use client';
 
 import dynamic from 'next/dynamic';
-import { useCallback, useRef } from 'react';
+import { useCallback, useImperativeHandle, useRef, forwardRef } from 'react';
 import type { MetricInstance } from '@/types/metrics';
 import { formatTimestamp } from '@/lib/formatters';
 
@@ -14,15 +14,36 @@ interface TimeSeriesChartProps {
   height?: number;
 }
 
-export default function TimeSeriesChart({
+export interface ChartHandle {
+  zoomToRange: (startMs: number, endMs: number) => void;
+}
+
+export default forwardRef<ChartHandle, TimeSeriesChartProps>(function TimeSeriesChart({
   title,
   instances,
   unit = '%',
   height = 300,
-}: TimeSeriesChartProps) {
+}, ref) {
   const chartInstance = useRef<any>(null);
   const soloIndex = useRef<number | null>(null);
 
+  useImperativeHandle(ref, () => ({
+    zoomToRange(startMs: number, endMs: number) {
+      const chart = chartInstance.current;
+      if (!chart) return;
+      const allTimes = instances.flatMap((inst) => inst.dataPoints.map((d) => d.timestamp * 1000));
+      if (allTimes.length === 0) return;
+      const minTime = Math.min(...allTimes);
+      const maxTime = Math.max(...allTimes);
+      const range = maxTime - minTime;
+      if (range === 0) return;
+      const padding = (endMs - startMs) * 0.5;
+      const s = Math.max(0, ((startMs - padding - minTime) / range) * 100);
+      const e = Math.min(100, ((endMs + padding - minTime) / range) * 100);
+      chart.dispatchAction({ type: 'dataZoom', start: s, end: e });
+    },
+  }), [instances]);
+
   const series = instances.map((inst) => ({
     name: inst.instance || 'total',
     type: 'line' as const,
@@ -120,4 +141,4 @@ export default function TimeSeriesChart({
       onEvents={onEvents()}
     />
   );
-}
+});
diff --git a/src/components/report/AlertPanel.tsx b/src/components/report/AlertPanel.tsx
index 5867319..79efcc7 100644
--- a/src/components/report/AlertPanel.tsx
+++ b/src/components/report/AlertPanel.tsx
@@ -7,12 +7,16 @@ interface AlertPanelProps {
   instances: MetricInstance[];
   type: 'cpu' | 'memory' | 'disk' | 'nas';
   height?: number;
+  onZoomRange?: (startMs: number, endMs: number) => void;
 }
 
 interface Alert {
   level: 'warning' | 'critical';
+  category: 'threshold' | 'peak';
   instance: string;
   message: string;
+  startMs?: number;
+  endMs?: number;
 }
 
 function generateAlerts(instances: MetricInstance[], type: string): Alert[] {
@@ -23,47 +27,48 @@ function generateAlerts(instances: MetricInstance[], type: string): Alert[] {
       if (inst.stats.max > 90) {
         alerts.push({
           level: 'critical',
+          category: 'threshold',
           instance: inst.instance,
           message: `최대 ${formatPercent(inst.stats.max)} 도달`,
         });
       }
-      inst.peaks.peaks.forEach((peak) => {
-        alerts.push({
-          level: 'warning',
-          instance: inst.instance,
-          message: `${formatTimestamp(peak.startTime)} ~ ${formatTimestamp(peak.endTime)} Peak (max: ${formatPercent(peak.maxValue)})`,
-        });
-      });
     } else if (type === 'memory') {
       if (inst.stats.max > 80) {
         alerts.push({
           level: inst.stats.max > 90 ? 'critical' : 'warning',
+          category: 'threshold',
           instance: inst.instance,
           message: `최대 ${formatPercent(inst.stats.max)} 도달`,
         });
       }
-      inst.peaks.peaks.forEach((peak) => {
-        alerts.push({
-          level: 'warning',
-          instance: inst.instance,
-          message: `${formatTimestamp(peak.startTime)} ~ ${formatTimestamp(peak.endTime)} Peak (max: ${formatPercent(peak.maxValue)})`,
-        });
-      });
     } else if (type === 'disk' || type === 'nas') {
       if (inst.stats.max > 80) {
         alerts.push({
           level: inst.stats.max > 90 ? 'critical' : 'warning',
+          category: 'threshold',
           instance: inst.instance,
           message: `사용률 ${formatPercent(inst.stats.max)} (증설 검토 필요)`,
         });
       }
     }
+
+    // Z-score peak alerts for all types
+    inst.peaks.peaks.forEach((peak) => {
+      alerts.push({
+        level: 'warning',
+        category: 'peak',
+        instance: inst.instance,
+        message: `${formatTimestamp(peak.startTime)} ~ ${formatTimestamp(peak.endTime)} Peak (max: ${formatPercent(peak.maxValue)})`,
+        startMs: peak.startTime * 1000,
+        endMs: peak.endTime * 1000,
+      });
+    });
   });
 
   return alerts;
 }
 
-export default function AlertPanel({ instances, type, height = 300 }: AlertPanelProps) {
+export default function AlertPanel({ instances, type, height = 300, onZoomRange }: AlertPanelProps) {
   const alerts = generateAlerts(instances, type);
 
   if (alerts.length === 0) {
@@ -81,14 +86,33 @@ export default function AlertPanel({ instances, type, height = 300 }: AlertPanel
       </div>
       <ul className="divide-y divide-gray-100 overflow-y-auto flex-1">
         {alerts.map((alert, idx) => (
-          <li key={idx} className="px-3 py-2 flex items-start gap-2">
+          <li
+            key={idx}
+            className={`px-3 py-2 flex items-start gap-2 ${alert.startMs && onZoomRange ? 'cursor-pointer hover:bg-blue-50' : ''}`}
+            onClick={() => {
+              if (alert.startMs && alert.endMs && onZoomRange) {
+                onZoomRange(alert.startMs, alert.endMs);
+              }
+            }}
+          >
             <span
               className={`mt-1 inline-block w-1.5 h-1.5 rounded-full flex-shrink-0 ${
                 alert.level === 'critical' ? 'bg-red-500' : 'bg-yellow-500'
               }`}
             />
-            <div className="text-xs">
-              <span className="font-medium text-gray-800">{alert.instance}</span>
+            <div className="text-xs flex-1">
+              <div className="flex items-center gap-1.5">
+                <span className="font-medium text-gray-800">{alert.instance}</span>
+                <span className={`inline-block px-1.5 py-0.5 rounded text-[10px] font-medium ${
+                  alert.category === 'peak'
+                    ? 'bg-purple-100 text-purple-700'
+                    : alert.level === 'critical'
+                      ? 'bg-red-100 text-red-700'
+                      : 'bg-orange-100 text-orange-700'
+                }`}>
+                  {alert.category === 'peak' ? 'PEAK' : alert.level === 'critical' ? 'CRITICAL' : 'WARNING'}
+                </span>
+              </div>
               <p className="text-gray-500">{alert.message}</p>
             </div>
           </li>
diff --git a/src/components/report/NetworkAlertPanel.tsx b/src/components/report/NetworkAlertPanel.tsx
index 0d6b50d..0043828 100644
--- a/src/components/report/NetworkAlertPanel.tsx
+++ b/src/components/report/NetworkAlertPanel.tsx
@@ -6,15 +6,19 @@ import { formatTimestamp, formatBytesPerSec } from '@/lib/formatters';
 interface NetworkAlertPanelProps {
   data: NetworkMetrics;
   height?: number;
+  onZoomRange?: (startMs: number, endMs: number) => void;
 }
 
 interface Alert {
   level: 'warning' | 'critical';
+  category: 'peak';
   instance: string;
   message: string;
+  startMs: number;
+  endMs: number;
 }
 
-export default function NetworkAlertPanel({ data, height = 300 }: NetworkAlertPanelProps) {
+export default function NetworkAlertPanel({ data, height = 300, onZoomRange }: NetworkAlertPanelProps) {
   const alerts: Alert[] = [];
 
   [...data.receive, ...data.transmit].forEach((inst) => {
@@ -24,8 +28,11 @@ export default function NetworkAlertPanel({ data, height = 300 }: NetworkAlertPa
     inst.peaks.peaks.forEach((peak) => {
       alerts.push({
         level: 'warning',
+        category: 'peak',
         instance: label,
         message: `${formatTimestamp(peak.startTime)} ~ ${formatTimestamp(peak.endTime)} 트래픽 급증 (max: ${formatBytesPerSec(peak.maxValue)})`,
+        startMs: peak.startTime * 1000,
+        endMs: peak.endTime * 1000,
       });
     });
   });
@@ -45,10 +52,23 @@ export default function NetworkAlertPanel({ data, height = 300 }: NetworkAlertPa
       </div>
       <ul className="divide-y divide-gray-100 overflow-y-auto flex-1">
         {alerts.map((alert, idx) => (
-          <li key={idx} className="px-3 py-2 flex items-start gap-2">
+          <li
+            key={idx}
+            className={`px-3 py-2 flex items-start gap-2 ${onZoomRange ? 'cursor-pointer hover:bg-blue-50' : ''}`}
+            onClick={() => {
+              if (onZoomRange) {
+                onZoomRange(alert.startMs, alert.endMs);
+              }
+            }}
+          >
             <span className="mt-1 inline-block w-1.5 h-1.5 rounded-full flex-shrink-0 bg-yellow-500" />
-            <div className="text-xs">
-              <span className="font-medium text-gray-800">{alert.instance}</span>
+            <div className="text-xs flex-1">
+              <div className="flex items-center gap-1.5">
+                <span className="font-medium text-gray-800">{alert.instance}</span>
+                <span className="inline-block px-1.5 py-0.5 rounded text-[10px] font-medium bg-purple-100 text-purple-700">
+                  PEAK
+                </span>
+              </div>
               <p className="text-gray-500">{alert.message}</p>
             </div>
           </li>