[j-nsp] Segment Routing Real World Deployment (was: VPC mc-lag)

[Phil Bedard]

This is from an industry perspective and not specific to Juniper.  BIER won't really  happen without hardware support which is coming but will not be compatible with a lot of already deployed hardware.  

There was some IETF work going on to figure out how to map multicast to SR-MPLS but it kind of died off last year.  

TreeSID is more of a Cisco solution, and relies on an external PCE to build the multicast tree at every branch point across an SR-enabled network.  

Near-term mLDP specifically for multicast, without unicast enabled, is a solution.  Ingress replication is becoming a bit more popular as multicast as an overall percentage of traffic has continued to drop.  

Phil 

On 7/12/18, 6:43 AM, "juniper-nsp on behalf of Jackson, William" <juniper-nsp-bounces at puck.nether.net on behalf of william.jackson at gibtele.com> wrote:

    So just to throw a question out there:
    
    When I last looked at SR this was a big empty hole when it came to multicast.
    As we are possibly removing mLDP and RSVP from the network in favour of SR(-TE) what are people doing to fill this void.
    
    There were some drafts being worked on last year and if I recall one that seemed more "developed" was "Bit Index Explicit Replication", but I haven't heard anything more about this topic and it hasn't been mentioned in the thread so far.
    
    Any comments?
    
    Thanks
    
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