[lxc-devel] [lxd/master] network: Bring mtu device up

[stgraber on Github]

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From 1f15a603800d3463a62ae2bff9b8b80f8f9673af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Graber?= <stgraber at ubuntu.com>
Date: Tue, 19 Mar 2019 22:32:44 -0700
Subject: [PATCH] network: Bring mtu device up
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Signed-off-by: Stéphane Graber <stgraber at ubuntu.com>
---
 lxd/networks.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lxd/networks.go b/lxd/networks.go
index 2f4188b4b6..b957452301 100644
--- a/lxd/networks.go
+++ b/lxd/networks.go
@@ -1070,7 +1070,10 @@ func (n *network) Start() error {
 	if mtu != "" && n.config["bridge.driver"] != "openvswitch" {
 		_, err = shared.RunCommand("ip", "link", "add", "dev", fmt.Sprintf("%s-mtu", n.name), "mtu", mtu, "type", "dummy")
 		if err == nil {
-			networkAttachInterface(n.name, fmt.Sprintf("%s-mtu", n.name))
+			_, err = shared.RunCommand("ip", "link", "set", "dev", fmt.Sprintf("%s-mtu", n.name), "up")
+			if err == nil {
+				networkAttachInterface(n.name, fmt.Sprintf("%s-mtu", n.name))
+			}
 		}
 	}