Initial commit: homelab configuration and documentation

scripts/network_performance_test.sh

@@ -0,0 +1,80 @@
+#!/bin/bash
+# network_performance_test.sh - Test network performance between nodes
+# This script uses iperf3 to measure bandwidth between homelab nodes
+
+set -euo pipefail
+
+# Colors
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+# Node IPs
+NODES=(
+    "192.168.1.81:Ryzen"
+    "192.168.1.57:Proxmox"
+    "192.168.1.196:Manager"
+    "192.168.1.245:Pi4"
+    "192.168.1.62:PiZero"
+)
+
+echo "========================================="
+echo "Network Performance Testing"
+echo "========================================="
+
+# Check if iperf3 is installed
+if ! command -v iperf3 >/dev/null 2>&1; then
+    echo "Installing iperf3..."
+    sudo apt-get update && sudo apt-get install -y iperf3
+fi
+
+# Get current node IP
+CURRENT_IP=$(hostname -I | awk '{print $1}')
+echo -e "\nTesting from: $CURRENT_IP\n"
+
+test_node() {
+    local NODE_INFO=$1
+    local IP=$(echo $NODE_INFO | cut -d: -f1)
+    local NAME=$(echo $NODE_INFO | cut -d: -f2)
+    
+    if [[ "$IP" == "$CURRENT_IP" ]]; then
+        return
+    fi
+    
+    echo -e "${YELLOW}Testing to $NAME ($IP)...${NC}"
+    
+    # Test if iperf3 server is running
+    if timeout 2 nc -z $IP 5201 2>/dev/null; then
+        # Run bandwidth test
+        RESULT=$(iperf3 -c $IP -t 5 -f M 2>/dev/null | grep "receiver" | awk '{print $7, $8}')
+        if [[ -n "$RESULT" ]]; then
+            echo -e "${GREEN}  → Bandwidth: $RESULT${NC}"
+        else
+            echo "  → Test failed (server may be busy)"
+        fi
+    else
+        echo "  → iperf3 server not running on $NAME"
+        echo "  → Run on $NAME: iperf3 -s -D"
+    fi
+}
+
+# Test all nodes
+for NODE in "${NODES[@]}"; do
+    test_node "$NODE"
+done
+
+echo -e "\n========================================="
+echo "Test complete"
+echo "=========================================
+"
+
+# Recommendations
+echo -e "\nRecommendations:"
+echo "• Expected speeds:"
+echo "  - Ryzen/Proxmox: 2.5 Gb (2500 Mbits/sec)"
+echo "  - Pi 4: 1 Gb (1000 Mbits/sec)"
+echo "  - Pi Zero: 100 Mb (100 Mbits/sec)"
+echo "• If speeds are lower, check:"
+echo "  - Switch port configuration"
+echo "  - Cable quality (Cat6 for 2.5Gb)"
+echo "  - Network interface settings"