Excellent! Thanks Michael for the reply. These are real good features we are looking for.
Regards Naresh On Mon, Aug 29, 2016 at 11:45 PM, Michael Henkel <[email protected]> wrote: > Hello Naresh, > > > > Recent OpenContrail R3.0 introduce version 2 of SFC. With that we > decoupled network from compute. The VM instance providing the VNF will be > instantiated outside of OpenContrail (e.g. Nova or any other orchestrator) > with at least two interfaces connected to the two virtual networks between > traffic will have to be forwarded. Those two interfaces (ports) will be > grouped as a port tuple. That port tuple is used in OpenContrail to build a > Service Instance. (http://www.opencontrail.org/port-tuples-service-chain- > redundancy/) > > > > Having said that OpenContrail doesn't know anything about the VM and as > such cannot automatically scale it up/down. You will need Ceilometer for > that. > > The health-check takes care for withdrawing routes of failed Service > Instance so that traffic is not forwarded to/through it anymore. > > Traffic is equally distributed through a vertically scaled Service > Instance. The hash for the distribution can be configured: > https://github.com/Juniper/contrail-controller/wiki/ > Customized-field-selection-for-ECMP-load-balancing > > > > Regards, > > Michael > > > > > > *From: *Users <[email protected]> on behalf of Naresh > Kumar <[email protected]> > *Date: *Monday 29 August 2016 at 18:07 > *To: *"[email protected]" <[email protected]>, " > [email protected]" <[email protected]> > *Subject: *[Users] Opencontrail Service Chaining - Health Check - > Auto-scale > > > > Hi Folks, > > > > We are evaluating opencontrail for our data center deployment. The use > case we plan to deploy is Service Function Chaining. In this regard, I have > few questions, can you please help answer the following? > > > > * For network service function to be working, we need to define service > template with pointer to image, list of interfaces (mgmt, left, right). So > when we create a service function, it contacts openstack nova for booting > up the image.* > > > > Question 1: Does it also take care of any health check when the service VM > goes down and re-spawn the service VM? If so, what health checks can be > configured? > > > > Question 2: Does the service auto-scale and load-balance among the service > VMs when the load is increased? If so, can we configure the parameters to > consider for auto-scale? > > > > Can you please let me know latest open contrail supports it or any future > road-map for these features? I am new to open contrail alias, if this > question was already discussed, it would be great if you can provide any > pointers. > > > > > > Thanks & Regards > > Naresh Thukkani >
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