Hi Iwase - My responses are inline...
From: Iwase Yusuke [mailto:iwase.yusu...@gmail.com]
Sent: Friday, February 9, 2018 1:54 AM
To: SHAIKH, AMAN (AMAN) <asha...@research.att.com>
Subject: Re: [GoBGP-devel] MPLS label issue with VPNv4 routes
> When you say, the patch is not enough for MPLS VPN, can you elaborate on
> what > exactly the patch lacks at the moment?
I don't yet understand enough about the mechanism of FRRouting/Zebra, I can't
say exactly, but I this for the MPLS VPN, we need; 1. MPLS label allocation
synchronously or cooperatively with Zebra
--> Correct. I believe your current patch addresses this, and it's huge step
forward (just on its own) for GoBGP to support MPLS L3-VPNs.
2. Be aware of VRF creation on Zebra; Might be optional, because we can specify
VRF ID when creating VRF on GoBGP.
--> It would be nice to GoBGP to be in sync with FRR/Zebra for VRFs, but it's
not necessary (at least for me) to use GoBGP for MPLS VPN as long as I use the
correct VRF ID while creating a VRF through gobgp CLI.
Having said that, it would be nice if GoBGP can determine the VRF-ID from
FRR/Zebra based on the VRF name. Assuming FRR/Zebra provides such a capability,
this will not only eliminate possible error in terms of specifying the VRF ID,
but will also allow GoBGP to ensure that the CLI-specified VRF (i.e, its name)
is actually configured in Linux kernel and is known to FRR/Zebra.
3. Ingress/egress route (with MPLS label) advertisement to Zebra (Or more, if
I'm misunderstanding) My patch addresses only 1, and I say "not enough".
--> I plan to provide you exactly what routes I expect to see and what's
missing from GoBGP. Plan to work on this today.
> Nonetheless, It would be nice if you submit a pull request for your patch >
> which solves a critical problem. If it gets accepted and becomes part of the
> > master branch, it would make it easier for people to use GoBGP for VPN.
It's exactly as you said, if the following patch will pass CI tests, I will
post it as PR.
--> That sounds awesome. Looking forward to getting this patch become part of
the master branch ...
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
gobgp-devel mailing list