Hi, Yes, that should be possible. You can create 4 bridges on compute node and add all of them to bridge_mappings config option. Then You can create 4 networks with different physical_network for each of them and agent will know which bridge should be used for ports from each network. It is described e.g. in [1]. [1] https://ask.openstack.org/en/question/94206/how-to-understand-the-bridge_mappings/?answer=94230#post-id-94230 > Wiadomość napisana przez Soheil Pourbafrani <soheil.ir08 at gmail.com> w dniu 21.11.2018, o godz. 12:08: > > Hi, > > I installed OpenStack on One node (for test) and creating a flat external network I could connect VMs to the provider network (internet). > > In the production environment, we have 4 NIC on each server and each server (compute node) will run 4 instances. My question is, is it possible to create a separate external network based on each NIC (so 4 external networks) and run each instance using one of them? > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack at lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack — Slawek Kaplonski Senior software engineer Red Hat