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Cisco NSO

Network Services Orchestrator

Multivendor SDN Controller
Supports physical and virtual devices
Uses NETCONF and YANG
FASTMAP algorithm used to determine the minimum number of configuration changes to get to desired state. Can manage rollback on legacy IOS that don’t natively supports rollbacks.
Network Wide Transaction - all devices need to successfully apply change or all devices will rollback.
Legacy devices that don’t support NETCONF can use NEDs (Network Element Driver), using vendor CLI or SNMP.
 
  1. Service Manager - specify services needed on the network
  1. Device Manager - specify devices and connection to devices
  1. Mapping Logic
  1. CDB - configuration database of all devices
 
Cisco NSO Overview

Installing NSO

sudo apt update
sudo apt-get install default-jdk
sudo apt-get install ant
sudo apt-get install python3-pip
pip3 install paramiko

cd Downloads
chmod +x nso-5.5.linux.x86_64.signed.bin
./nso-5.5.linux.x86_64.signed.bin --skip-verification
./nso-5.5.linux.x86_64.installer.bin $HOME/ncs-5.5 --local-install
source $HOME/ncs-5.5/ncsrc
ncs-setup --dest $HOME/ncs-run
cd $HOME/ncs-5.5/packages/neds
cp -r * $HOME/ncs-run/packages

ncs
ncs_cli -C -u admin
show packages