[dev] FRR vrf, multi-instance

[Jia Chen]

Hi Marc, 

Yes, (b) is referring L3VPN, or EVPN or VPN cases. 
(c) Refer to RIB separation case

From your email, can I imply that FRR VRF cover both (b) and (c) cases ?


Thanks,
Jay


On 6/28/18, 2:41 PM, "Marc Binderberger" <marc at sniff.de> wrote:

    Hello Jay,
    
    just for my understanding: in (b), do you want to say "VPN is both ..." ?  I 
    don't see why a 'VRF' requires any BGP/RT/RD. At least not in the way I'm 
    used to use the term VRF.
    
    VPNs use VRFs though.
    
    Would have connected the term 'VRF' with (c), quite literally as "virtual 
    routing and forwarding".
    
    
    Words ... :-)
    
    
    Regards, Marc
    
    
    
    
    
    
    On Thu, 28 Jun 2018 20:59:09 +0000, Jia Chen wrote:
    > Hi All, 
    > 
    > A question about FRR way of supporting vrf, multi-instance, or logical 
    > router. 
    > 
    > A. OSPF/IS-IS multi-instance is a control plane concept, not forwarding
    > B. VRF is both routing and forwarding, for example, L3vpn and EVPN, which 
    > uses RT, RD in BGP updates
    > C. Virtual router is a non-VPN instance, which does not require RT, RD
    > 
    > Both B and C, has a one-to-one interface to routing instance mapping. 
    > 
    > Are A, B, C all supported by FRR? 
    > 
    > Juniper has a logical system (or router), which divided physical router 
    > into logical sub-routers. Each logical router has dedicated interface, 
    > routing protocols, routing and forwarding table. Are there equivalent in 
    > FRR? 
    > 
    > Thanks,
    > Jay 
    > 
    > 
    > 
    > On 6/28/18, 9:31 AM, "dev on behalf of Donald Sharp" 
    > <dev-bounces at lists.frrouting.org on behalf of sharpd at cumulusnetworks.com> 
    > wrote:
    > 
    >     Mark -
    >     
    >     Great idea, We'll start the meeting off with your talk.
    >     
    >     thanks!
    >     
    >     donald
    >     
    >     
    >     On Thu, Jun 28, 2018 at 11:58 AM, Mark Stapp <mjs at voltanet.io> wrote:
    >     > Hi,
    >     > I've been doing some work on the dataplane side of zebra, and I'd 
    > like to
    >     > talk a bit about the approach and outline some of the possible 
    > next-steps.
    >     > Could I have a few minutes at next week's dev meeting to introduce the
    >     > topic? The broad goals are sort of:
    >     >
    >     > * to harden the interface that zebra has with the dataplane or 
    > -planes that
    >     > are in use,
    >     > * to improve support for remote dataplanes,
    >     > * to allow dataplane/kernel updates to be moved to a dedicated 
    > pthread,
    >     > * to improve integration of FPM, and to include more events
    >     >
    >     > I've been working at first just to support asynchronous route/fib 
    > updates,
    >     > just to start exploring the possible approaches and to raise some 
    > questions.
    >     >
    >     > Thanks,
    >     > Mark
    >     >
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    >     > dev at lists.frrouting.org
    >     > 
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