From be963554687bc93fab7f24c19e9520bab3defb6e Mon Sep 17 00:00:00 2001
From: Bob Lantz <rlantz@cs.stanford.edu>
Date: Fri, 5 Mar 2010 17:01:37 -0800
Subject: [PATCH] Added some additional explanatory comments.
---
examples/linearbandwidth.py | 8 ++++++++
examples/udpbwtest.py | 10 +++++++++-
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/examples/linearbandwidth.py b/examples/linearbandwidth.py
index 6aeb1272..424fc3ec 100755
--- a/examples/linearbandwidth.py
+++ b/examples/linearbandwidth.py
@@ -13,6 +13,14 @@
Note: by default, the reference controller only supports 16
switches, so this test WILL NOT WORK unless you have recompiled
your controller to support 100 switches (or more.)
+
+In addition to testing the bandwidth across varying numbers
+of switches, this example demonstrates:
+
+- creating a custom topology, LinearTestTopo
+- using the ping() and iperf() tests from Mininet()
+- testing both the kernel and user switches
+
"""
import sys
diff --git a/examples/udpbwtest.py b/examples/udpbwtest.py
index e9c492fc..6baec85c 100755
--- a/examples/udpbwtest.py
+++ b/examples/udpbwtest.py
@@ -6,6 +6,14 @@
udp traffic. This should be something of a stress test.
We should also make a tcp version. :D
+
+In addition to trying to saturate global bandwidth in
+various Mininet configurations, this example:
+
+- uses a topology, TreeTopo, from mininet.topolib
+- starts up a custom test program, udpbwtest, on each host
+- dynamically monitors the output of a set of hosts
+
"""
import os
@@ -36,7 +44,7 @@ def readline( host, buffer ):
def monitor( hosts, seconds ):
"Monitor a set of hosts and yield their output."
poller = select.poll()
- Node = hosts[ 0 ] # so we can call class method
+ Node = hosts[ 0 ] # so we can call class method fdToNode
buffers = {}
for host in hosts:
poller.register( host.stdout )
--
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