[FROG] weird route-target config

[Donald Sharp]

Rendo -

Please open an issue on github with this information.

donald

On Fri, Apr 27, 2018 at 9:30 AM, rendo <rendo.aw at gmail.com> wrote:
> Hi,
>
> I am not sure if this is specific to cumulus or FRR in general,
> It seems the route-target config for evpn (maybe for other family too) has
> some magic if the 2 byte number has more than 3 digit.
>
>
> I am adding a new vni 12345 with RT 64000:12345. The RT simply disappear
>
> r1(config-router-af)# vni 12345
> r1(config-router-af-vni)# rd 172.16.10.10:12345
> r1(config-router-af-vni)# route-target both 64000:12345
> r1(config-router-af-vni)#
> r1(config-router-af-vni)# do sh run
> Building configuration...
>
> ...
>
> router bgp 64000
>  address-family l2vpn evpn
>   neighbor 10.7.0.3 activate
>   neighbor 10.7.0.22 activate
>   vni 12345
>    rd 172.16.10.10:12345
>   exit-vni
>   vni 31100
>    rd 172.16.20.20:31100
>    route-target import 64000:31100
>    route-target export 64000:31100
>   exit-vni
> ...
>
>
> now i add "shorter" RT before putting the intended RT, both RT shows up
>
> r1(config-router-af-vni)# route-target both 64000:12
> r1(config-router-af-vni)# route-target both 64000:12345
> r1(config-router-af-vni)# do sh run
> ...
>   vni 12345
>    rd 172.16.10.10:12345
>    route-target import 64000:12
>    route-target import 64000:12345
>    route-target export 64000:12
>    route-target export 64000:12345
>   exit-vni
> ...
>
>
> and if i delete the dummy RT, the intended RT still there
>
> r1(config-router-af-vni)# no route-target export 64000:12
> r1(config-router-af-vni)# no route-target import 64000:12
> r1(config-router-af-vni)#
> r1(config-router-af-vni)# do sh run
> ...
>   vni 12345
>    rd 172.16.10.10:12345
>    route-target import 64000:12345
>    route-target export 64000:12345
>   exit-vni
> ....
>
>
> could someone please take a look?
>
> note: cumulus version is 3.5.3, FRR version is 3.2+cl3u4
>
>
>
>
> thanks.
>
> rendo
>
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