On Thu, 31 Jan 2019 at 10:57, Gert Doering <[email protected]> wrote:
> I think Robert is talking about router-to-router LANs, where you have > "prior knowledge" in your FIB. > > Like, OSPF neighbours, or BGP next-hops pointing to LAN adjacencies - so > the router could go out and start the ARP process the moment it learns > "I have a next-hop in BGP pointing to <lan interface>:<ip>". Yeah even this is driven by traffic, you BGP wanting to send packet causes it to be resolved. Heck this does not cause ARP: ip route 1.2.3.0 255.255.255.0 <far_end_link_on_ethernet> This route gets installed and stays installed regardless if far end will resolve or not. And far end wont be resolved until something wants to go to far_end or wants to go to 1.2.3.0/24 Huawei VRP has magic feature to enable periodic ARP for static route, so that static route is not installed if far_end does not resolve or stops resolving. Cisco and Juniper do not. -- ++ytti _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
