add problem hint

Signed-off-by: h0nIg <[email protected]>

Author: h0nIg

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 {