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Switch Test Presentation

The Outline The concept of ping TCP/IP protocol ICMP Ethereal RFC standard for benchmark. Switch Test Presentation. ICMP Type = 8. ICMP Type = 0. A 電腦. B 電腦. The concept of Ping tool. A ping B. TCP/IP Structure. Application ： IE 、 Web Server…. Protocol ： HTTP 、 FTP…. TCP/IP Model.

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Switch Test Presentation

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  1. The Outline The concept of ping TCP/IP protocol ICMP Ethereal RFC standard for benchmark Switch Test Presentation www.inventecesc.com

  2. ICMP Type = 8 ICMP Type = 0 A電腦 B電腦 The concept of Ping tool A ping B www.inventecesc.com

  3. TCP/IP Structure www.inventecesc.com

  4. Application： IE、Web Server… Protocol： HTTP、FTP… TCP/IP Model www.inventecesc.com

  5. TCP/IP VS. OSI www.inventecesc.com

  6. HTTP GET Response A電腦 Google TCP/IP Stack www.inventecesc.com

  7. ICMP Code All 8 16 32 0 www.inventecesc.com

  8. ICMP Code TYPE = 3 0 = network unreachable router router 1 = host unreachable router  DNS 2 = protocol unreachable host  Service 3 = port unreachable host  Port Num 4 = fragmentation needed but impossible router because of 'don't fragment' command  MTU 5 = source route not reachable router routing www.inventecesc.com

  9. ICMP Code TYPE = 8 - Echo Request sent by: 0 = (no special meaning) host, router TYPE = 0 - Echo Reply sent by: 0 = (no special meaning) host, router www.inventecesc.com

  10. Switch 16 port Sender Receiver1 Receiver2 Structure of test environment (Packet size = 65500 in windows and 65507 in Linux) www.inventecesc.com

  11. Sender information BACK www.inventecesc.com

  12. www.inventecesc.com

  13. www.inventecesc.com

  14. Receive packet rule in • non-promiscuous mode • Broadcast • Personal IP www.inventecesc.com

  15. www.inventecesc.com

  16. Structure of test environment Simple equation ( ( input_count - output_count ) * 100 ) / input_count A電腦送出10000個封包 (ICMP TYPE=8) B電腦收到9500個封包 (ICMP TYPE=0) Frame loss數目 = 10000 – 9500 = 500 1 - 500/10000 = 95% Frame loss定義為降90%往下測試為標準 請參照 RFC2544 page16 -- 26.3 RFC2889 page3 -- 5.1.2 www.inventecesc.com

  17. Reference • RFC2544 • RFC2889 • RFC1242 www.inventecesc.com

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