Date: Fri, 17 Mar 2017 10:06:47 +0100 From: Harry Schmalzbauer <freebsd@omnilan.de> To: "freebsd-net@freebsd.org" <freebsd-net@FreeBSD.org> Subject: Are ./valte-ctl and ./bridge friends or competitors? Message-ID: <58CBA727.3040108@omnilan.de>
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Hello, I'm still having problems understanding netmap(4) and would highly appreciate brief help. I'm running stable/11. I'd like to replace if_bridge(4) with netmap(4), because virtio-net chops jumbu frames (https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215737) and if_bridge(4) requires members to have the same mtu. I'm creating vmnet0 (tap(4)) and vale0 with an physical (keeping host stack usage) port: ifconfig create vmnet0 ./vale-ctl -h vale0:igb0 ./vale-ctl -a vale0:vmnet0 which results in bdg_ctl [149] bridge:0 port:0 vale0:vlegn bdg_ctl [149] bridge:0 port:1 vale0:vlegn^ bdg_ctl [149] bridge:0 port:2 vale0:vmnet0 But vmnet0 reports "Status: no carrier". Quoting 4 netmap: The following command attaches an interface and the host stack to a switch: vale-ctl -h vale2:em0 Other netmap clients attached to the same switch can now communicate with the network card or the host. Is vmnet0 not a "netmap client"? How does ./bridge fit here? I guess it's only capable of shurtcuting netmep ports, so not aedequate for my secnario, where I use igb0 for host and netmap (./vale-ctl -h)? Has anyone ever used vale(4) as bridge for connecting bhyve guests? Thanks, -harry
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