Yes, 'show route', is from Bird. I don't have route-reflector, but just two routers which have a bgp session. Anyway, yes when direct is disabled, the bgp session is established.
Il giorno mar 24 mar 2020 alle ore 21:45 Alexander Zubkov <[email protected]> ha scritto: > "show route" looks a little weird, is it from bird? There are also > commonly a protocol and metric shown. > Those are from your route-reflector? Do you have your bgp sessions up > when direct is disabled? > > On Tue, Mar 24, 2020 at 9:33 PM Fabiano D'Agostino > <[email protected]> wrote: > > > > Good evening Alexander, > > > > Direct protocol enabled: > > 'route' command: > > Destination Gateway Genmask Flags Metric iface > > 192.168.1.0 * 255.255.255.0 U 0 enp0s3 > > 192.168.1.0 * 255.255.255.0 U 32 enp0s3 > > 192.168.2.0 * 255.255.255.0 U 0 enp0s8 > > 192.168.2.0 * 255.255.255.0 U 32 enp0s8 > > 192.168.4.0 * 255.255.255.0 U 32 enp0s8 > > 'show route' command: > > 192.168.1.0/24 enp0s3 > > 192.168.2.0/24 enp0s8 via 192.168.2.22 on enp0s8 > > 192.168.4.0/24 via 192.168.2.22 on enp0s8 > > > > Direct protocol disabled: > > 'route' command: > > Destination Gateway Genmask Flags Metric iface > > 192.168.1.0 * 255.255.255.0 U 0 enp0s3 > > 192.168.2.0 * 255.255.255.0 U 0 enp0s8 > > 'show route' command: > > empty > > > > Thanks, > > > > Fabiano > > > > Il giorno mar 24 mar 2020 alle ore 21:00 Alexander Zubkov < > [email protected]> ha scritto: > >> > >> I think it would be easier if you showed your route tables in both > cases. > >> > >> On Tue, Mar 24, 2020 at 8:57 AM Irene Lalioti <[email protected]> > wrote: > >> > > >> > Hello guys! > >> > > >> > Just because today we encountered again the same issue with direct, I > am very curious on this: > >> > > >> > I totally agree with what you guys explained about the need of the > direct protocol. Once we set it then reachability works and all is ok. > >> > > >> > Our big question is why was it working before the moment it lost the > BGP session?? In other words: the set up : > >> > > >> > RS - BGP session with the ROUTER - and behind the Router we have > Caches. > >> > > >> > Before the router was announcing to the RS(BIRD v2.0.7) the caches > and that they are reachable by the router. Without any direct. > >> > > >> > Until one day we lose the bgp session, and we can ping the caches > from the RS but not reachable . Once we set it as direct on the bird then > all is fine. > >> > > >> > Question is why was it working before without direct ?? :=) > >> > > >> > Many thanks for your time! > >> > > >> > Have a great day all! > >> > > >> > Irene. > >> > > >> > On 23/03/2020 17:07, Fabiano D'Agostino wrote: > >> > > >> > Hi Bernd, > >> > no, the routing "from the kernel" doesn't come via 'learn yes', but > via RIB, I mean if I do 'route' it shows the directly connected networks. > The problem is that if I use the Direct protocol, the command 'route' shows > me two same directly connected networks, one coming from RIB and the other > one coming from Bird. > >> > I tried protocol bgp { direct; }, but it doesn't change. > >> > > >> > Thanks, > >> > > >> > Fabiano > >> > > >> > Il giorno lun 23 mar 2020 alle ore 16:15 Bernd Naumann < > [email protected]> ha scritto: > >> >> > >> >> On 23.03.20 16:01, Fabiano D'Agostino wrote: > >> >> > Hi Benedikt, > >> >> > I am just learning Bird and I didn't want to use the Direct > protocol > >> >> > because using it I have two same routes in the RIB for the directly > >> >> > connected networks, one coming from the kernel and the second one > coming > >> >> > from the direct protocol. > >> >> > >> >> > >> >> Is the routing "from the kernel" coming via `learn yes;`? If you > have no > >> >> need to import "alien" routes, you can disable `learn` and just use > >> >> `direct` and `static` protocol. /* OR if you know that your neighbor > is > >> >> directly connected to you can also set 'direct' on the `protocol > bgp`. */ > >> >> > >> >> Bernd > >> >> > >> >> > >> > > >> > -- > >> > Irene Lalioti > >> > Network Engineer > >> > Fondation RESTENA > >> > 2, avenue de l'Université > >> > L-4365 Esch/Alzette > >> > > >> > Tel: +352 424409 1 > >> > Fax: +352 422473 >
