vlan: register proper mtu value

Upon a subinterface creation, the MTU is set to '0' after a reconfig. grout# show interface name vlan210 name: vlan210 id: 3 flags: up vrf: 0 mtu: 0 type: vlan parent: dpdk-p1 vlan_id: 210 Read the parent interface MTU to fill in the proper data. Signed-off-by: Christophe Fontaine <[email protected]>
DPDK · Jan 30, 2025 · 65042b0 · 65042b0
1 parent f876490
commit 65042b0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/modules/infra/control/vlan.c b/modules/infra/control/vlan.c
@@ -125,7 +125,7 @@ static int iface_vlan_reconfig(
 	if (set_attrs & GR_IFACE_SET_FLAGS)
 		iface->flags = flags;
 	if (set_attrs & GR_IFACE_SET_MTU)
-		iface->mtu = mtu;
+		iface->mtu = mtu ? mtu : iface_from_id(cur->parent_id)->mtu;
 	if (set_attrs & GR_IFACE_SET_VRF)
 		iface->vrf_id = vrf_id;