Hello, The QFX5110 is unable to route between a VXLAN and a layer 3 interface. There is a hack documented here:
<https://www.juniper.net/documentation/en_US/junos/topics/concept/evpn-vxlan-qfx5110-l2-vxlan-l3-logical.html> Such a setup is quite fragile. Only the QFX10k is able to act as a L3 gateway for VXLAN and be connected to non-VXLAN stuff. QFX5110 is only able to act as a L3 gateway when routing between VXLANs. -- Watch out for off-by-one errors. - The Elements of Programming Style (Kernighan & Plauger) ――――――― Original Message ――――――― From: Andrey Kostin <ank...@podolsk.ru> Sent: 25 septembre 2019 11:37 -04 Subject: Re: [j-nsp] EVPN on QFX5200 To: Vincent Bernat Cc: Liam Farr; juniper-nsp@puck.nether.net > Thank you for reply. > I meant a slightly different thing. Currently my setup is in lab stage > with QFX5110 as spines and QFX5000 as leaves. I need to connect vlans > running in EVPN-VXLAN fabric to an aggregation router, ideally two of > them for redundancy. To have a redundant gateway for hosts sitting in > VNIs I need to run EVPN L3 gateway somewere. It can be done either on > aggregation routers or on QFX5110. Putting L3GW on routers means they > have to run EVPN as well and effectively become leaves for VXLAN > fabric. It may be a feasible solution in the future but for now we > don't want to put EVPN-VXLAN in prod network. So, the another option > is to run L3 gateways on spines and somehow route them to agg routers. > Possible connectivity options between edge routers and spines could > be: > - have individual P2P routed links Spine-RTR and run BGP session > between them. Balancing and redundancy in this case will be provided > by BGP+ECMP and also limited by their capabilities. > - have LACP to both Spines from each RTR and then L3 interface on each > spine, BGP from each spine to each RTR. Load balancing is provided by > BGP multipath+ECMP+LACP. In this case LACP bundle from spines POV is > switched. Direct connection between spines is necessary in this case. > ROuters in this topology play CE role for VXLAN fabric but connected > to spines instead of leaves. > > Any recommendations or links to BCP are appreciated. > > Kind regards, > Andrey > > Vincent Bernat писал 2019-09-21 01:34: >> ❦ 20 septembre 2019 11:47 -04, Andrey Kostin <ank...@podolsk.ru>: >> >> >> I am not familiar with MPLS. You need to use QFX10k for the spines as >> the QFX5k are not able to route VXLAN outside (or not able to route at >> all). _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp