CLUS-EVPN - NSO EVPN project for Cisco Live US 2017

This Cisco NSO project contains the following packages:

EVPN Package
- Implements customer-facing EVPN services:
  - evpn-l3-direct - Connectivity to evpn leaf nodes with L3 termination and use of
```
              anycast-gateway
```
  - evpn-l3-default - Connectivity to evpn leaf nodes with L3 termination using
```
              static routes or BGP
```
  - evpn-l2-vpls - Connectivity to evpn leaf nodes with L2 extending to the DCI,
```
              connecting to customer VPLS instance on the DCI
```
  - evpn-l2-evpl - Connectivity to evpn leaf nodes with L2 extending to the DCI,
```
              connecting to customer EVPL instance on the DCI
```
- These services call VXLAN services in order to build the corresponding Layer-2 or
  Layer-3 topology.
VXLAN Package
- Implements VXLAN services:
  - routed-topology - VXLAN Layer-3 topology
  - bridged-topology - VXLAN Layer-2 topology

The following additional packages are required:

Cisco NX-OS NED - ncs-4.6.1-cisco-nx-5.2.tar.gz
Cisco resource-manager - ncs-4.6-resource-manager-3.3.0.tar.gz

Run the following commands after a new install (or after a make clean):

$ make all                              -- initialize netsim devices and ncs cdb
$ make start                            -- start netsim testbed and ncs
$ make cli                                -- connect to nso cli
admin@ncs# devices fetch-ssh-host-keys
admin@ncs# devices sync-to                -- update netsim devices configuration with initial cdb data
admin@ncs# devices sync-to                -- yes, need to do it twice

Before pushing the project to git, remember to clean temporary data:

$ make stop
$ make clean

Recommended environment:

NSO 4.6.2
Python 3.6.6

This has been tested with Python 2.7.14 and 3.6.6.

If using Python 2.7.14, the following pip packages need to be installed:

ipaddress
future