From cb9cadad578297ffd78fa8a33670bdf1ab669e7e Mon Sep 17 00:00:00 2001 From: Ed Warnicke Date: Tue, 8 Dec 2015 15:45:58 -0700 Subject: Initial commit of vpp code. Change-Id: Ib246f1fbfce93274020ee93ce461e3d8bd8b9f17 Signed-off-by: Ed Warnicke --- build-root/vagrant/README | 54 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 build-root/vagrant/README (limited to 'build-root/vagrant/README') diff --git a/build-root/vagrant/README b/build-root/vagrant/README new file mode 100644 index 00000000000..0498615473e --- /dev/null +++ b/build-root/vagrant/README @@ -0,0 +1,54 @@ +To run vpp with the debug shell: + +sudo ~vagrant/git/vpp/build-root/install-vpp_debug-native/vpp/bin/vpe unix interactive + +which will result in a prompt that looks like: + +DBGvpd# + +To give it a spin, we can create a tap interface and try a simple ping +(with trace). + +To create the tap: + +DBGvpd# tap connect foobar +Created tap-0 for Linux tap 'foobar' +DBGvpd# show int + +To assign it an ip address (and 'up' the interface): + +DBGvpd# set int ip address tap-0 192.168.1.1/24 +DBGvpd# set int state tap-0 up + +To turn on packet tracing for the tap interface: +DBGvpd# trace add tapcli-rx 10 + +Now, to set up and try the other end from the unix prompt: +vagrant@vagrant-ubuntu-trusty-64:~$ sudo ip addr add 192.168.1.2/24 dev foobar +vagrant@vagrant-ubuntu-trusty-64:~$ ping -c 3 192.168.1.1 + +To look at the trace, back in the vpp CLI: +DBGvpd# show trace + +And to stop tracing: + +DBGvpd# clear trace + +Other fun things to look at: + +The vlib packet processing graph: +DBGvpd# show vlib graph + +which will produce output like: + + Name Next Previous +ip4-icmp-input error-punt [0] ip4-local + ip4-icmp-echo-request [1] + vpe-icmp4-oam [2] + +To read this, the first column (Name) is the name of the node. +The second column (Next) is the name of the children of that node. +The third column (Previous) is the name of the parents of this node. + +To see this README again: +cat /vagrant/README \ No newline at end of file -- cgit 1.2.3-korg