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Commit d8ef79df authored by Bob Lantz's avatar Bob Lantz
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Tweaks for install and readme files.

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Preliminary Installation Notes Preliminary Mininet Installation/Configuration Notes
- Mininet is not currently 'installed.' If you want to install it,
so that you can 'import mininet', place it somewhere in your
python path.
- A functional netns binary is required to run mininet, but currently you - A functional netns binary is required to run mininet, but currently you
have to compile it and install it yourself from the included .c file: have to compile it and install it yourself from the included .c file:
to make it: make netns (or cc -o netns netns.c) to make it: make netns (or cc -o netns netns.c)
to test it: ./netns /bin/echo to test it: ./netns /sbin/ifconfig -a
to 'install' a link to it: to 'install' a link to it, you could do something like:
sudo ln -s /home/openflow/mininet/netns /usr/local/bin/netns sudo ln -s /home/openflow/mininet/netns /usr/local/bin/netns
Installation is simplest with a distribution that includes a kernel Installation is simplest with a distribution that includes a kernel
...@@ -17,7 +21,7 @@ Preliminary Installation Notes ...@@ -17,7 +21,7 @@ Preliminary Installation Notes
sudo aptitude/yum install iperf sudo aptitude/yum install iperf
We assume you already have ping installed. We assume you already have ping installed. ;-)
- You may need other packages to run the examples, e.g. - You may need other packages to run the examples, e.g.
......
...@@ -24,12 +24,12 @@ In order to run Mininet, you must have: ...@@ -24,12 +24,12 @@ In order to run Mininet, you must have:
datapath may be used, and the tun or ofdatapath kernel modules must be datapath may be used, and the tun or ofdatapath kernel modules must be
loaded, respectively) loaded, respectively)
* Python, Bash, etc. * Python, Bash, Ping, iPerf, etc.
* Root privilieges (required for network device access) * Root privileges (required for network device access)
* The netns program or equivalent (included as netns.c) installed * The netns program (included as netns.c), or an equivalent program called
in an appropriate path location. 'netns', installed in an appropriate path location.
* mininet.py installed in an appropriate Python path location. * mininet.py installed in an appropriate Python path location.
...@@ -41,41 +41,15 @@ Currently mininet includes: ...@@ -41,41 +41,15 @@ Currently mininet includes:
- A simple network infrastructure (class Network and its descendants - A simple network infrastructure (class Network and its descendants
TreeNet, GridNet and LinearNet) for creating scalable topologies and TreeNet, GridNet and LinearNet) for creating scalable topologies and
running experiments (using someNetwork.run( test ) ) running experiments (using someNetwork.run( test ) )
- Some simple tests which can be run using someNetwork.run( test ) - Some simple tests which can be run using someNetwork.run( test )
- A simple command-line interface which may be invoked on a network using - A simple command-line interface which may be invoked on a network using
.run( Cli ) .run( Cli )
- Examples (in examples/ directory) to help you get started. - Examples (in examples/ directory) to help you get started.
Notes and Advice:
For scalable configurations, you may need to increase some of your kernel
limits. For example, you could add something like the following to
/etc/sysctl.conf:
# OpenFlow: get rid of ipv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
# Mininet: Increase open file limit
fs.file-max = 100000
# Mininet: increase network buffer space
net.core.wmem_max = 16777216
net.core.rmem_max = 16777216
net.ipv4.tcp_rmem = 10240 87380 16777216
net.ipv4.tcp_rmem = 10240 87380 16777216
net.core.netdev_max_backlog = 5000
# Mininet: increase arp cache size
net.ipv4.neigh.default.gc_thresh1 = 4096
net.ipv4.neigh.default.gc_thresh2 = 8192
net.ipv4.neigh.default.gc_thresh3 = 16384
# Mininet .... and increase routing table size Some preliminary installation notes are included in the INSTALL file.
net.ipv4.route.max_size=32768
--- ---
Bob Lantz Bob Lantz
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