add problem hint

Signed-off-by: h0nIg <h0nIg@users.noreply.github.com>
containernetworking · Oct 14, 2024 · c52e02b · c52e02b
1 parent 24b0bf9
commit c52e02b
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/plugins/meta/bandwidth/ifb_creator.go b/plugins/meta/bandwidth/ifb_creator.go
@@ -27,11 +27,14 @@ import (
 const latencyInMillis = 25
 
 func CreateIfb(ifbDeviceName string, mtu int) error {
+	// do not set TxQLen > 0 nor TxQLen == -1 until issues have been fixed with numrxqueues / numtxqueues across interfaces
+	// which needs to get set on IFB devices via upstream library: see hint https://github.com/containernetworking/plugins/pull/1097
 	err := netlink.LinkAdd(&netlink.Ifb{
 		LinkAttrs: netlink.LinkAttrs{
-			Name:  ifbDeviceName,
-			Flags: net.FlagUp,
-			MTU:   mtu,
+			Name:   ifbDeviceName,
+			Flags:  net.FlagUp,
+			MTU:    mtu,
+			TxQLen: 0,
 		},
 	})
 	if err != nil {