Network Programmability with APIC‐EM

29 Pages·2017·3.44 MB·English

Network Programmability with APIC‐EM 
Cluj‐Napoca  
Doinea Bogdan
Heroes
WEB 1.0
Internet Heroes
Prac4cally invented TCP/IP  
Made switching loops something we 
Designed most of the IPv6 format 
could all live with  
Strong contributor to the IoT concept. 
Co‐invented IS‐IS  
Lead architect for 6LoWPAN 
Worked extensively to create TRILL
What did they create?
"The truth in no online database will replace your 
daily newspaper, no CD‐ROM can take the place of 
a competent teacher and no computer network will 
change the way government works.” 
Clifford Stoll, Astronomer 
"I think there is a world market for maybe five 
computers." ‐‐ Thomas Watson, chairman of IBM, 
1943. 
We will never make a 32‐bit operaOng system. 
– Bill Gates, 1989
Where are we now?
Evolution comes with its challenges
How are we addressing it?

• From STP ‐> MST ‐> VSS/Stacking ‐> more&more layer 3 LAN design 

• From VLAN ‐> VXLAN ‐> OTV/LISP/EVPN 

• From sta4c IP ‐> link‐state RP ‐> BGP ‐> MPLS ‐> Hybrid WANs(iWAN) 

• From bare metal ‐> VMs ‐> Containers 

• From firewalls/VPNs ‐> IPSs ‐> anomaly‐based ‐> retrospec4ve security 

• From local HDD ‐> SANs ‐> SDS ‐> Hyper convergence 
•  From  1 CCIE to ‐> x different CCIEs where x is …7?
Digital Business Demands Operational Efficiency and Agility
…
“ While other components of the IT infrastructure have become more programmable and allow for faster, automated provisioning,
installing network circuits is still a painstakingly manual process
...”
—TechTarget/Network Evolution, April 2015
Network Expenses Deployment Speed
Computing Networking
100%
67%
33%
0
Seconds 0 10 100 1000
CAPEX OPEX
Source: Forrester Source: Open Compute Project
80% 57% CEOs are worried about IT strategy
Time IT spends on operations
not supporting business growth
© 2015 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8
Problems we want to solve

• Network agility is too slow ‐ both service implementa4on and vendor 
go‐to‐market 

• Network flexibility is too small – waterfall model, not agile model 

• Applica4ons can’t really talk to the network in a standard way  

• There is no ONE WAY to provision, manage and orchestrate all the 
networking equipment  

• “Problems are not stop signs, they are guidelines”, Robert H. Schuller
SDN as a Solution

• SDN = soeware defined networking. Solu4on for: FastIT, Agile 
Networking, scaling the Internet of Things, handling Big Data(Hadoop, 
MapReduce, Lucene etc) 

• Basic Concept(2008):  

• In every smart device we have Control Plane and Data Plane  Polic
Policy 
  Policy 
• Decouple the two 
y 
APIC Controller 
SDN 

Polic Polic
y  y 
Switch  Router

State  State