T681: Fix QoS DSCP filter

The left shift operation aligns the DSCP/TOS value with its bit position in the IP header. TC expects a DSCP value with this shift
vyos · Jan 13, 2025 · 0d28573 · 0d28573
1 parent 8a83a97
commit 0d28573
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/python/vyos/qos/base.py b/python/vyos/qos/base.py
@@ -89,7 +89,8 @@ def _get_dsfield(self, value):
         if value in self._dsfields:
             return self._dsfields[value]
         else:
-            return value
+            # left shift operation aligns the DSCP/TOS value with its bit position in the IP header.
+            return int(value) << 2
 
     def _calc_random_detect_queue_params(self, avg_pkt, max_thr, limit=None, min_thr=None,
                                          mark_probability=None, precedence=0):