Hi Clark,
Just briefly,
> Clarke Morledge
> Sent: Friday, March 04, 2016 6:49 PM
>
> I am working my way through _MPLS in the SDN Era_, and I really am
> intrigued by what I read about SPRING.
>
> I got burned a few years ago trying to deploy RSVP for traffic engineering
> purposes, and I ran into so many serious JUNOS bugs, I had to abandon it and
> use LDP to handle labels and stick with IGP metric manipulation to do some
> basic traffic enginering. Since I do not need bandwith reservation, I have
> actually appreciated the simplicity of LDP. But it looks like SPRING does
> pretty much the same thing, with less control plane overhead, which is even
> more attractive.
>
> I have a few questions for those who might know:
>
> (a) How mature is SPRING, considering that the ISIS IGP it is built on is
> well-
> established?
>
It's been introduced just recently so there might still be some bugs
It doesn't really matter how mature ISIS/OSPF implementation is
> (b) Are there any noticeable behavioral differences between SPRING and
> LDP implementations?
>
Yes instead of label swap routers do label pop
> (c) Do we have any idea when P2MP LSPs will come along with SPRING? Will
> it need to be coupled somehow with PIM?
>
So you say P2MP LSPs are not supported with SR yet? I haven't check so I don't
know.
There will be no need for PIM.
adam
Adam Vitkovsky
IP Engineer
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