provisioning vpns on an heterogeneous network with opendaylight and netconf_bcom

Gwenael LAMBROUIN

Santa Clara, CA, USA2015-07-28

/ Provisioning VPNs on a heterogeneous network

infrastructure with OpenDaylight and NETCONF /

15/04/2023

28/07/15 / 2Diffusion : confidentiel28/07/15 / 2Diffusion : confidentiel28/07/15 / 2Diffusion : confidentiel / 2Diffusion : public

Contents

› Part 1•The Problem to Solve

•Key Technical Issues

•Why OpenDaylight (ODL)?

› Part 2•Our implementation

› Part 3•Ongoing work with ODL

•Feedback on ODL


›faster service delivery & improved self-service

›through automation

›on an example: L2VPN

The Problem to Solve


›Abstraction

›Error management

›Resource allocation

›Orchestration

Key Technical Issues


›Simplifies service logic

›Makes it possible to change the hardware

›What is the good level?

Abstraction


›Configurations can fail

›Errors must be detected

›A recovery plan is needed

Error Management


›open source

›backed-up by industry

›NETCONF

›abstraction (MD-SAL/YANG)

›to evaluate ODL

Why OpenDaylight (ODL)?


Contents






•Feedback on ODL


Our Implementation


The Generic Device Driver


›Better than CLI•structured

•explicit failures

›But some useful features are optional•eg « commit »

Comments on NETCONF


<cmd>interface GigabitEthernet3</cmd> <cmd>no ip address</cmd><cmd>no shut</cmd><cmd>negotiation auto</cmd> <cmd>service instance 1 ethernet</cmd> <cmd>encapsulation untagged</cmd> <cmd>bridge-domain 1</cmd> <cmd>end</cmd>

Example 1


<routing-instances><instance><name>orange_vpn</name><interface operation="create">GigabitEthernet 0/0/3</interface>…

Example 2


String vendor="Cisco"; // or "Juniper"Driver driver = Driver.build(vendor);driver.open(deviceAddress, login, password);driver.addL2vpnPort("orange_vpn", 1, "GigabitEthernet3");driver.close();

Example


POST http://[...]/l2vpn:add-l2vpn-port

{ "device-id" : "v_lightblue_site1", "vpn-name" : "orange_vpn", "vpn-number" : 1, "port-name" : "GigabitEthernet3"}

Example


L2VPN Service Orchestrator


›Error recovery strategies•rollback on error

•continue on error

›What is the better strategy?•It depends!



Contents






•Feedback on ODL


›Move orchestration to ODL

›Experiment with data persistency

›Develop a CLI driver

Ongoing Work with ODL


›Cons•Hard to learn, hard to master

›Pros•Stable

•Bug & patch processes work

•Friendly & responsive community

Feedback on ODL


›ODL can manage network devices

›We are ready to share our code

›… if there is interest!

Conclusion

www.b-com.com

Thanks

/ [email protected] /

http://slideshare.net/b-com

provisioning vpns on an heterogeneous network with opendaylight and netconf_bcom

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