Make containers inherit their MTU from the bridge.

TrilliumIT · Mar 7, 2016 · dc8931d · dc8931d
1 parent a479894
commit dc8931d
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Showing 4 changed files with 26 additions and 11 deletions.
diff --git a/README.md b/README.md
@@ -52,7 +52,7 @@ Name of the bridge interface
 
 #### bridgeMTU
 
-MTU of the bridge interface
+MTU of the bridge interface. Container interfaces inherit their MTU from the bridge interface.
 
 #### bridgeHardwareAddr
 

diff --git a/glide.lock b/glide.lock
diff --git a/glide.yaml b/glide.yaml
@@ -4,7 +4,7 @@ import:
   version: v0.9.0
 - package: github.com/codegangsta/cli
 - package: github.com/docker/go-plugins-helpers
-  version: e121e40d9473dd84b97bbccd835192dce7096f30
+  version: 94650054f38b80ab066a72e945a9e7553c292ff1
   subpackages:
   - network
 - package: github.com/samalba/dockerclient

diff --git a/vxlan/driver.go b/vxlan/driver.go
@@ -472,7 +472,8 @@ func (d *Driver) Join(r *network.JoinRequest) (*network.JoinResponse, error) {
         }
 	// create and attach local name to the bridge
 	veth := &netlink.Veth{
-		LinkAttrs: netlink.LinkAttrs{Name: "veth_" + r.EndpointID[:5]},
+		LinkAttrs: netlink.LinkAttrs{Name: "veth_" + r.EndpointID[:5],
+                MTU: links.Bridge.LinkAttrs.MTU },
 		PeerName:  "ethc" + r.EndpointID[:5],
 	}
 	if err := netlink.LinkAdd(veth); err != nil {