Automation Evolution with Junos

Juniper Networks Large Venue Template / 16x9 / V6
AUTOMATION EVOLUTION
WITH JUNOS
Uwe Richter
JUNIPER NETWORKS
UWE@JUNIPER.NET

AGENDA
AUTOMATION OVERVIEW
JUNIPER AUTOMATION OFFERINGS
USE CASES
SUMMARY

Nodal
Automation
( Puppet, Chef )
Ad-Hoc
Scripting
( Bash, Perl )
IT Workflow
Orchestration
Business
Workflow
Orchestration
Manual Vendor CLI Proprietary
Product
skills
IT
DIFFERENT POINTS OF VIEW
Rapid Application Delivery
Networking
Discrete blocks with no
business alignment
ContinuityAgility
Application
Velocity

THE AUTOMATION CONTINUUM
Old Way
ProductionCollectConfigureBuildPhysical Install
New Way
ProductionCollectConfigureBuildPhysical Install
Hours/Days
(manual)
Minutes
(automated)
BENEFITS
•  Minimum networking skills required
•  Reduced OpEx
•  Consistent, repeatable and efficient
•  Rapid application delivery

Control Analytics Configuration
CONTRAIL: NETWORK ORCHESTRATION, AUTOMATION
OSS/
BSS
CLOUD SERVICES,
ANALYTICS
API/SDK
(VIRTUALIZED,
PHYSICAL)
ORCHESTRATION/
OSS
Application
s
SDN
•  Abstraction of the Network Layer to
address it as a whole as opposed to
discrete parts
Orchestration
•  Domain-wide ability to control
resources in combination across
various systems
Automation
•  Programmatic access to data center
resource for consistency, repeatability,
and efficiency
APPROACH COMPARISON
Automation, Orchestration and SDN

JUNIPER OFFERINGS

JUNOS AUTOMATION STACK
Tool built into Junos that enables automation
Chef
Junos
Data Plane (PFE)Chassis
XML
Netconf
PythonEZ Framework RubyEZ Library
PuppetAnsible
Python
Scripts
Ruby
Scripts
Junoscript
SNMP
RO
CLI
Junos Platform Automation Stack
15+ years of automation history
Open architecture
Three key features at the platform
layer:
§  XML
§  Junos Script and Netconf
§  Junos EZ

NETWORK AUTOMATION
The Build phase centers around the
initial design and installation of a
network component
The Configure phase
covers methods to deploy
on-demand configuration
and software changes to the
platform
The Collection phase
deals with automating
the process of
monitoring operational
state of the platform and
reacting on state
conditions
Build
ConfigureCollect

AUTOMATION TOOLKIT: BUILD
Feature Description
Zero Touch
Provisioning (ZTP)
•  Out-of-the-box configuration and software deployment
•  Faster deployment
•  Multi-node orchestration awareness
•  Agentless
•  Vendor agnostic
Configure CollectBuild

Flexible scripting
option for custom
provisioning
Switch successfully
provisioned
Switch is racked and stacked,
sends a DHCP request on
boot
Configuration and image
information loaded on DHCP
server
EX & QFX
Series
Switches
DHCP Server responds
with image and
configuration
DHCP
Server
ü ü ü ü
BUILD: ZERO TOUCH PROVISIONING
•  Minimal skill required
•  Consistent deployment
•  Reduced data center build
time
•  Reduced configuration
errors
Load different images based on location

BUILD: ANSIBLE
Python API
Ansible
Transports
Plug-ins
Playbook
Files
Junos_get_facts
Junos_install_os Junos_reboot
Junos_install_config
Junos_shutdown
Module
Library
Security Routing Switching
NETCONF
SSH
Telnet/Console
•  Agentless and simple approach
•  Coding skills not required
•  Work flow engine
•  One tool for network/compute/storage

AUTOMATION TOOLKIT: CONFIGURE
Tool Description
Platform that can define and enforce the state of the infrastructure
Platform can transform complex infrastructure into code
Simple automation platform that brings multi-node orchestration awareness
Python EZ “Micro-framework" to remotely manage or automate Junos OS devices

Ruby Interpreter
EX Series | QFX Series | MX Series
Puppet "netdev" module
NETCONF
(FreeBSD)
NETCONF "gem"Puppet Agent
(client)
Puppet Master
(server)
"netdev"
jpuppet
package
CONFIGURE: PUPPET
Puppet module stored on the Puppet master
Puppet Agent downloads module to switch

Ruby Interpreter
EX Series | QFX Series | MX Series
Chef "netdev" module
NETCONF
(FreeBSD)
NETCONF "gem"Chef Client
Chef server
"netdev"
jchef
package
CONFIGURE: CHEF
“netdev” module stored on the Chef server.
Chef client downloads module to switch

CONFIGURE: PYTHON
Build Simple to Complex Applications
IT FrameworksPython Shell Python Script
Custom
Applications
open-source – Maintained by CommunityNETCONF Client (NCCLIENT)
NETCONF TRANSPORT ONLY VENDOR AGNOSTIC NO ABSTRACTIONS
JUNOS SPECIFIC ABSTRACTION LAYER MICRO-FRAMEWORK
Junos Python EZ (JunosPyEZ) open-source – Maintained by Juniper
"snippets"
(no variables)
"templates"
(merge variables)Resources
Configuration Changes
Tables
Operational State
Views

AUTOMATION TOOLKIT: COLLECT
Tool Description
Netconf / DMI
•  Standard method for executing RPCs across a network
•  Junos exposes all DMI functions via Netconf to remote hosts
Junos Scripts
•  Built into the Junos OS
•  Powerful and flexible onboard toolset
•  Available on all Junos platforms
PythonEZ
•  “Micro-framework" to remotely manage or automate Junos OS devices
•  Collect operational states as native Python Operational Data

XML
NETCONF XML
PROTOCOL
(RFC4741)
Management System
Automate config changes,
remote invocation of
operational commands,
collection of logs
NETCONF client libraries exist
for a number of programming
languages such as Java, Perl,
Ruby, Python, and even SLAX !
Security Routing Switching
COLLECT: NETCONF/DMI
•  Secure and connection oriented with SSHv2 as transport
•  Structured and transaction-based with XML as RPC request / response
•  User-class privilege aware
Secure TCP/IP
connections via
SSHv2 (RFC4742)

•  Create
custom commands
•  Diagnose
network problems
•  Controlled
configuration change
Operation Script
•  Automate event
responses
•  Correlate events
Event Script
•  Assure compliance
to business rules
network/security policies
Commit Configuration
Script
COLLECT: JUNOS SCRIPTS

COLLECT: JUNOS SCRIPTS
Each script type uses XML in its own unique way
Junos Infrastructure
Output
XML
instructions
on what to
display
Input
Blank
XML
document
Op
Script
Event
Script
Output
XML
instructions
on what to
display
(if anything)
Input
XML
event
description
Commit
Script
Output
XML
instructions
on actions
to take
(make changes,
issue warnings,
errors, etc.)
Input
XML
Junos
configuration

JUNOS SPECIFIC ABSTRACTION LAYER MICRO-FRAMEWORK
Junos Python EZ (JunosPyEZ)
COLLECT: PYTHON
Build Simple to Complex Applications
IT FrameworksPython Shell Python Script
Custom
Applications
open-source – Maintained by CommunityNETCONF Client (NCCLIENT)
NETCONF TRANSPORT ONLY VENDOR AGNOSTIC NO ABSTRACTIONS
open-source – Maintained by Juniper
"snippets"
(no variables)
"templates"
(merge variables)Resources
Configuration Changes
Tables
Operational State
Views

ENHANCED AUTOMATION SW ARCHITECTURE
Hardware
Operating System
App App App
Single Vendor Blob
Hardware
Operating System
App App App
Best of Breed Ecosystem
Python & Libraries
Ruby & Libraries
Puppet Agent
Chef ClientLayer 3 ZTP
Disabled VeriExec
Standard Junos image, with the following changes:

USE CASES

USE CASES – ENTERPRISE IT
BENEFITS
•  Minimal skill required by onsite deployment team
•  Ensure consistent deployment in line with company policies
•  Reduces data center build-out from days to minutes
NEEDS
•  Large Scale
•  Minimal Interaction
•  Minimal Skills
ZTP +
Ansible
Server

BENEFITS
Network
Director
ZTP +
Ansible
Server
Web
Server
Database
Juniper Firewall
New Web
Server
•  Network Director handles element management and Network as a Service abstraction
•  Network Director ensures consistent service deployment with minimal configuration by operations staff
•  Network Director Data Center Visualization and Analytics Data ensures up-to-date data is available
NEEDS
•  Consistent service
•  Growing new service
•  Abstraction

BENEFITS
Network
Director
ZTP +
Ansible
Server
Ops User
Web
Server
Database
Juniper Firewall
New Web
Server
Alert /
Report
•  Operational workflow automation allows operations staff to schedule tasks
•  Create reports based on “Out of Profile” events
•  Automate “Remediation Actions” based on report data to improve network availability and reduce MTTR
NEEDS
•  Monitor
•  Report
•  Remediate

USE CASE – CLOUD AUTOMATION LIFECYCLE
Boostraping
1
Install & Config
2
Monitoring &
Alarming
3
Repairing
4
Scaling
5
Build
1
Config
2
Collect
3
ZTP
Ansible
Chef
Puppet
Ansible
PythonEZ
Junos Script
PythonEZ
Netconf / DMI
Chef
Puppet
Ansible
SaltStack
Nagios
LogStach
Riemann
Graphite
Zabbix
Collectd
AWS CloudFormation
CloudFoundry
Cloudify
Fabric
Heat
Juju
Network
Cycle
App Cycle
SNMP

Automation Evolution with Junos

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