=== Minimal ETCP Traffic Flow Debugging ===
=== Testing Basic Packet Analysis ===
Test packet: 00 00 06 00 01 48 65 6C 6C 6F 
Section type: 0x00
Section length: 6
Total packet size: 10
This is a PAYLOAD section
Packet ID: 1
Payload size: 4 bytes
Payload data: 48 65 6C 6C 
Payload as text: Hell

=== Testing Multi-Section Packet ===
Multi-section packet: 06 00 02 12 34 01 00 09 02 00 01 56 78 00 02 56 79 00 00 08 00 03 48 65 6C 6C 6F 21 

Section 0 at position 0:
  Type: 0x06 (TIMESTAMP)
  Length: 2 bytes
  Timestamp: 4660

Section 1 at position 5:
  Type: 0x01 (ACK)
  Length: 9 bytes
  ACK count: 2
    ACK[0]: id=1, ts=22136
    ACK[1]: id=2, ts=22137

Section 2 at position 17:
  Type: 0x00 (PAYLOAD)
  Length: 8 bytes
  Packet ID: 3
  Payload: Hello!

Total sections parsed: 3

=== Testing Connection Establishment Packets ===
INIT_REQUEST packet:
  Node ID: 0x2222222222222222
  MTU: 1500
  Keepalive: 100

INIT_RESPONSE packet:
  Node ID: 0x1111111111111111
  MTU: 1500

=== Test completed ===