@@ -52,6 +52,10 @@ Test Case 2: test VLAN filtering on/off
testpmd> vlan set filter on 0
testpmd> start
+ Due to the kernel enables Qinq and cannot be closed, the DPDK cn only add `extend on` to make the VLAN filter
+ work normally. Therefore, if the i40e firmware version >= 8.4 the dpdk can only add 'extend on' to make the VLAN filter work normally:
+ testpmd> vlan set extend on 0
+
2. Send 1 packet with VLAN TPID 0xA100 and VLAN Tag 16 on port ``A``,
Verify that the VLAN packet cannot be received in port ``B``.
@@ -77,6 +81,10 @@ Test Case 3: test adding VLAN Tag Identifier with changing VLAN TPID
testpmd> vlan set strip off 0
testpmd> start
+ Due to the kernel enables Qinq and cannot be closed, the DPDK cn only add `extend on` to make the VLAN filter
+ work normally. Therefore, if the i40e firmware version >= 8.4 the dpdk can only add 'extend on' to make the VLAN filter work normally:
+ testpmd> vlan set extend on 0
+
2. Add a VLAN Tag Identifier ``16`` on port ``0``::
testpmd> rx_vlan add 16 0