From 2ecf35d8e5b07ce992d99104f6ead2fa4a423d45 Mon Sep 17 00:00:00 2001 From: TimothyLottes Date: Tue, 8 Nov 2016 23:59:50 -0500 Subject: [PATCH] Add files via upload --- 20070705.html | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 20070705.html diff --git a/20070705.html b/20070705.html new file mode 100644 index 0000000..09fe15c --- /dev/null +++ b/20070705.html @@ -0,0 +1,33 @@ +
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20070705 - UDP Player Bandwidth

+
+ + + + +More useful info on player maximum peak bandwidth with UDP packets. +
+
+
  1. Overhead to send 1 UDP packet = 46 bytes.
    2. +
  2. 18 bytes is the ethernet header/footer.
    3. +
  3. 20 bytes is the IPV4 header.
    4. +
  4. 8 bytes is the UDP header.
    5. +
  5. Minimum/maximum ethernet packet size is 64/1518 bytes.
    6. +
  6. So UDP payload minimum/maximum is 18/1472 bytes.
+
+Using 128 Kbps (16 KB/s) as a maximum upload rate (low end DSL connection), +there is a trade off between high packet interactivity and payload (useful) bandwidth. +

+
  1. 64 byte packet = 18 byte payload = 256 packets/sec = 4608 bytes/sec
    2. +
  2. 80 byte packet = 34 byte payload = 204 packets/sec = 6936 bytes/sec
    3. +
  3. 96 byte packet = 50 byte payload = 170 packets/sec = 8500 bytes/sec
    4. +
  4. 128 byte packet = 82 byte payload = 128 packets/sec = 10496 bytes/sec
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