From 99e8b32edb5535875653c24fd25216c66ff6cc25 Mon Sep 17 00:00:00 2001
From: Fei Rao <milo.frao@gmail.com>
Date: Tue, 15 Dec 2015 15:35:34 +0800
Subject: [PATCH] support ovs port traffic statistics

ovs port traffic statistics can be get by assigning the port name
parameters.
eg,  ./ovs_port_statistics.sh qvoxxxxx

Change-Id: I5e6cb80122560ad54e55c9415ddfbbfa6288d622
---
 scripts/ovs_port_statistics.sh | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 scripts/ovs_port_statistics.sh

diff --git a/scripts/ovs_port_statistics.sh b/scripts/ovs_port_statistics.sh
new file mode 100755
index 0000000..92b142d
--- /dev/null
+++ b/scripts/ovs_port_statistics.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+# Author: Fei Rao <milo.frao@gmail.com>
+
+# TODO: More port statistics will be appended later.
+
+dev=${1:-br-int}
+
+rx_packages = `sudo ovs-vsctl get interface $dev statistics | awk '{print $8}' | awk -F= '{print $2}' | awk -F, '{print $1}'`
+rx_bytes = `sudo ovs-vsctl get interface $dev statistics | awk '{print $2}' | awk -F= '{print $2}' | awk -F, '{print $1}'`
+
+interval=3
+
+trap 'break' INT
+while [ 1 -eq 1 ]  ; do
+    sleep $interval
+    nw_rx_packages = `sudo ovs-vsctl get interface $dev statistics | awk '{print $8}' | awk -F= '{print $2}' | awk -F, '{print $1}'`
+    nw_rx_bytes = `sudo ovs-vsctl get interface $dev statistics | awk '{print $2}' | awk -F= '{print $2}' | awk -F, '{print $1}'`
+
+    python -c "print '%0.2f pkt/s %0.2f byte/s' % ((float($nw_rx_packages-$rx_packages)/int($interval), (float($nw_rx_bytes-$rx_bytes)/int($interval))))"
+    packages=$nw_rx_packages
+    bytes=$nw_rx_bytes
+done