62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
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VPP has now been built, installed, and started.
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To give it a spin, we can create a tap interface and try a simple ping
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(with trace).
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Make sure you have run:
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$ vagrant ssh
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To get to the vagrant VM:
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vagrant@localhost:~$
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Confirm that vpp is running with
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vagrant@localhost:~$ sudo status vpp
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vpp start/running, process 25202
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To create the tap:
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vagrant@localhost:~$ sudo vppctl tap connect foobar
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Created tap-0 for Linux tap 'foobar'
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vagrant@localhost:~$ sudo vppctl show int
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To assign it an ip address (and 'up' the interface):
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vagrant@localhost:~$ sudo vppctl set int ip address tap-0 192.168.1.1/24
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vagrant@localhost:~$ sudo vppctl set int state tap-0 up
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To turn on packet tracing for the tap interface:
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vagrant@localhost:~$ sudo vppctl trace add tapcli-rx 10
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Now, to set up and try the other end:
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vagrant@localhost:~$ sudo ip addr add 192.168.1.2/24 dev foobar
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vagrant@localhost:~$ ping -c 3 192.168.1.1
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To look at the trace:
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vagrant@localhost:~$ sudo vppctl show trace
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And to stop tracing:
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vagrant@localhost:~$ sudo vppctl clear trace
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Other fun things to look at:
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The vlib packet processing graph:
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vagrant@localhost:~$ sudo vppctl show vlib graph
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which will produce output like:
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Name Next Previous
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ip4-icmp-input error-punt [0] ip4-local
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ip4-icmp-echo-request [1]
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vpe-icmp4-oam [2]
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To read this, the first column (Name) is the name of the node.
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The second column (Next) is the name of the children of that node.
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The third column (Previous) is the name of the parents of this node.
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To see this README again:
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cat /vagrant/README
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