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git clone myproject
git fetch
git checkout dev_branch
git rebase -i master
:wq <---- save "vim" window which trigger rebase process
If conflict:
  * fix conflict
  * then run "$git add file_which_has_conflict"
  * then run "$git rebase --continue" 
* Repeate conflict step and "$git rebase --continue" until we get the message "Successfully rebased and updated"

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How to Download Lynda with youtube-dl with an organization login

Needed:

Cookies Export youtube-dl

• Install Cookies Export
• Login to Lynda and navigate to the course you want
• Cookies export button in browser
• Copy "cookie.txt" to your desktop

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import collections
import threading

__author__ = 'ashw7n'

import socket
import json
import logging

logging.basicConfig(level=logging.DEBUG)

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DB

ovs-vsctl list interface
ovs-vsctl --columns=ofport,name list Interface
ovs-vsctl --columns=ofport,name --format=table list Interface
ovs-vsctl --format=table --columns=name,mac_in_use find Interface name=br-dpdk1
ovs-vsctl get interface vhub656c3cb-23 name

ovs-vsctl set port vlan1729 tag=1729
ovs-vsctl get port vlan1729 tag

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### dhcp example

ovs-appctl ofproto/trace br-int in_port=7,udp,dl_src=fa:16:3e:f4:bd:de,dl_dst=ff:ff:ff:ff:ff:ff,nw_dst=255.255.255.255,udp_dst=67,udp_src=68

Megaflow: recirc_id=0,udp,tun_id=0,in_port=7,dl_src=fa:16:3e:f4:bd:de,dl_dst=ff:ff:ff:ff:ff:ff,nw_ecn=0,nw_frag=no,tp_src=68,tp_dst=67
Datapath actions: tnl_push(tnl_port(2),header(size=50,type=4,eth(dst=52:54:00:9b:2f:62,src=1e:36:0f:9e:1d:41,dl_type=0x0800),ipv4(src=11.0.0.21,dst=11.0.0.26,proto=17,tos=0,ttl=64,frag=0x4000),udp(src=0,dst=4789,csum=0x0),vxlan(flags=0x8000000,vni=0x138a)),out_port(4)),tnl_push(tnl_port(2),header(size=50,type=4,eth(dst=2a:da:01:b8:5f:46,src=1e:36:0f:9e:1d:41,dl_type=0x0800),ipv4(src=11.0.0.21,dst=11.0.0.28,proto=17,tos=0,ttl=64,frag=0x4000),udp(src=0,dst=4789,csum=0x0),vxlan(flags=0x8000000,vni=0x138a)),out_port(4))


###vxlan packet
ovs-appctl ofproto/trace br-int in_port=4,

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auto eth4.50
iface eth4.50 inet static
        address 0.0.0.0
        up ifconfig $IFACE up
        down ifconfig $IFACE down

auto vhost0
iface vhost0 inet static
        pre-up vif --create vhost0 --mac $(cat /sys/class/net/eth4/address)
        pre-up vif --add vhost0 --mac $(cat /sys/class/net/eth4/address) --vrf 0 --mode x --type vhost

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import os
import sys

testdir = os.path.dirname(__file__)
topdir = os.path.abspath(os.path.join(testdir, '../../../../../'))

sys.path.insert(0, os.path.join(topdir, 'build/debug/config/api-server/ut-venv/lib/python2.7/site-packages'))
sys.path.append(os.path.join(testdir, '../../utils'))

from provision_bgp import BgpProvisioner

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This assumes a single net n1 with 1.1.1.0/24 and vgw1 interface. Can be extended to use a public net and vgw1 on the public net

    python /opt/contrail/utils/provision_vgw_interface.py  --oper create  --interface vgw1 --subnets 1.1.1.0/24 --routes 0.0.0.0/0 --vrf default-domain:admin:n1:n1

If you run into error running above script, instead of `import InstanceService` and `import ttypes` use

        `from contrail_vrouter_api.gen_py.instance_service import InstanceService, ttypes`

Now do `ifconfig` and verify `vgw1` is present

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root@hp-03:/tmp/contrail# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.2 LTS
Release:	16.04
Codename:	xenial

--------

1. Set hostname and update /etc/hosts

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{
    "image": [
        {
            "category": "package",
            "id": "contrail_4_0_0_0_20",
            "path": "/opt/contrail/contrail-cloud-docker_4.0.0.0-20-newton_xenial.tgz",
            "type": "contrail-ubuntu-package",
            "version": "4.0.0.0-20"
        }
    ]