[FROG] IPv6 link-local addresses in the RIB

[Stephen Glaus]

Hi Donald...

Thanks for the info. Much appreciated.

/S



On Wed, 16 Dec 2020 at 11:24, Donald Sharp <sharpd at cumulusnetworks.com>
wrote:

> FRR currently only has the ability to select one route entry as
> selected per prefix.  Fixing this has implications for both route
> selection as well as nexthop tracking.  Nothing insurmountable just
> programming and working through the places this would cause changes in
> behavior.  As it stands this bugs me too but I have not come up with a
> scenario where this is truly affecting routing behavior other than
> from a display/small confusion perspective.
>
> donald
>
> On Wed, Dec 16, 2020 at 5:25 AM Stephen Glaus <snglaus at gmail.com> wrote:
> >
> > Apologies if I'm missing something simple here, but can anyone tell me
> why (in the output below) only one link-local address is shown as selected
> when all have been installed in the FIB?
> >
> > dut-2# sh ipv rou
> > Codes: K - kernel route, C - connected, S - static, R - RIPng,
> >        O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
> >        v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
> >        f - OpenFabric,
> >        > - selected route, * - FIB route, q - queued route, r - rejected
> route
> >
> > C>* 1::1/128 is directly connected, lo1, 00:14:00
> > C>* 1::2/128 is directly connected, lo2, 00:13:58
> > C>* 1::3/128 is directly connected, lo3, 00:14:01
> > C>* 10:1::/64 is directly connected, dp0p193p1, 00:06:42
> > S>* 10:2::/32 [1/0] via 192:168:1::2, dp0p256p1, weight 1, 00:06:41
> > S>* 51:1:1::/64 [1/0] via 192:168:1::2, dp0p256p1, weight 1, 00:06:41
> > C>* 192:168:1::/64 is directly connected, dp0p256p1, 00:06:42
> > S>* 200:1::/32 [1/0] via 10:1::2, dp0p193p1, weight 1, 00:06:41
> > C * fe80::/64 is directly connected, dp0p192p1, 00:06:41
> > C * fe80::/64 is directly connected, dp0p193p1, 00:06:42
> > C * fe80::/64 is directly connected, dp0p256p1, 00:06:42
> > C * fe80::/64 is directly connected, dp0p224p1, 00:06:47
> > C * fe80::/64 is directly connected, lo2, 00:13:59
> > C * fe80::/64 is directly connected, lo1, 00:14:00
> > C>* fe80::/64 is directly connected, lo3, 00:14:02
> > dut-2#
> >
> > Thanks in advance...Steve
> >
> >
> > _______________________________________________
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> > frog at lists.frrouting.org
> > https://lists.frrouting.org/listinfo/frog
>
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