141. VLAN Ethertype Config Tests

141.1. Description

for single vlan default TPID is 0x8100. for QinQ, default S-Tag+C-Tag VLAN TPIDs 0x88A8 + 0x8100. This feature implemented configuration of VLAN ethertype TPID, such as changing single vlan TPID 0x8100 to 0xA100, or changing QinQ “0x88A8 + 0x8100” to “0x9100+0xA100” or “0x8100+0x8100”

141.2. Prerequisites

  1. Hardware: one Fortville NIC (4x 10G or 2x10G or 2x40G or 1x10G)
  2. Software:
  3. Assuming that DUT ports 0 and 1 are connected to the tester’s port A and B.

141.3. Test Case 1: change VLAN TPID

  1. Start testpmd, start in rxonly mode:

    ./testpmd -c 0xff -n 4 -- -i --portmask=0x3 --tx-offloads=0x8fff
    testpmd> set fwd rxonly
    testpmd> set verbose 1
    testpmd> start
    
  2. Change VLAN TPIDs to 0xA100:

    testpmd> vlan set outer tpid 0xA100 0
    
  3. send a packet with VLAN TPIDs = 0xA100, verify it can be recognized as vlan packet.

141.4. Test Case 2: test VLAN filtering on/off

  1. Start testpmd, setup vlan filter on, start in mac forwarding mode:

    ./testpmd -c 0xff -n 4 -- -i --portmask=0x3 --tx-offloads=0x8fff
    testpmd> set fwd mac
    testpmd> vlan set filter on 0
    testpmd> start
    
  2. Send 1 packet with the VLAN Tag 16 on port A, Verify that the VLAN packet cannot be received in port B.

  3. Disable vlan filtering on port 0:

    testpmd> vlan set filter off 0
    
  4. Send 1 packet with the VLAN Tag 16 on port A, Verify that the VLAN packet can be received in port B.

141.5. Test Case 3: test adding VLAN Tag Identifier with changing VLAN TPID

  1. start testpmd, setup vlan filter on, start in mac forwarding mode:

    ./testpmd -c 0xff -n 4 -- -i --portmask=0x3 --tx-offloads=0x8fff
    testpmd> set fwd mac
    testpmd> vlan set filter on 0
    testpmd> vlan set strip off 0
    testpmd> start
    
  2. Add a VLAN Tag Identifier 16 on port 0:

    testpmd> rx_vlan add 16 0
    
  3. Send 1 packet with the VLAN Tag 16 on port A, Verify that the VLAN packet can be received in port B and TPID is 0x8100

  4. Change VLAN TPID to 0xA100 on port 0:

    testpmd> vlan set outer tpid 0xA100 0
    
  5. Send 1 packet with VLAN TPID 0xA100 and VLAN Tag 16 on port A, Verify that the VLAN packet can be received in port B and TPID is 0xA100

  6. Remove the VLAN Tag Identifier 16 on port 0:

    testpmd> rx_vlan rm 16 0
    
  7. 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.

141.6. Test Case 4: test VLAN header stripping with changing VLAN TPID

  1. start testpmd, setup vlan filter off, vlan strip on, start in mac forwarding mode:

    ./testpmd -c 0xff -n 4 -- -i --portmask=0x3 --tx-offloads=0x8fff
    testpmd> set fwd mac
    testpmd> vlan set filter off 0
    testpmd> vlan set strip on 0
    testpmd> start
    
  2. Send 1 packet with the VLAN Tag 16 on port A. Verify that packet received in port B without VLAN Tag Identifier

  3. Change VLAN TPID to 0xA100 on port 0:

    testpmd> vlan set outer tpid 0xA100 0
    
  4. Send 1 packet with VLAN TPID 0xA100 and VLAN Tag 16 on port A. Verify that packet received in port B without VLAN Tag Identifier

  5. Disable vlan header stripping on port 0:

    testpmd> vlan set strip off 0
    
  6. Send 1 packet with VLAN TPID 0xA100 and VLAN Tag 16 on port A. Verify that packet received in port B with VLAN Tag Identifier.

141.7. Test Case 5: test VLAN header inserting with changing VLAN TPID

  1. start testpmd, enable vlan packet forwarding, start in mac forwarding mode:

    ./testpmd -c 0xff -n 4 -- -i --portmask=0x3 --tx-offloads=0x8fff
    testpmd> set fwd mac
    testpmd> vlan set filter off 0
    testpmd> vlan set strip off 0
    testpmd> start
    
  2. Insert VLAN Tag Identifier 16 on port 1:

    testpmd> tx_vlan set 1 16
    
  3. Send 1 packet without VLAN Tag Identifier on port A. Verify that packet received in port B with VLAN Tag Identifier 16 and TPID is 0x8100

  4. Change VLAN TPID to 0xA100 on port 1:

    testpmd> vlan set outer tpid 0xA100 1
    
  5. Send 1 packet without VLAN Tag Identifier on port A. Verify that packet received in port B with VLAN Tag Identifier 16 and TPID is 0xA100.

  6. Delete the VLAN Tag Identifier 16 on port 1:

    testpmd> tx_vlan reset 1
    
  7. Send 1 packet without VLAN Tag Identifier on port A. Verify that packet received in port B without VLAN Tag Identifier 16.

141.8. Test Case 6: Change S-Tag and C-Tag within QinQ

  1. Start testpmd, enable QinQ, start in rxonly mode:

    ./testpmd -c 0xff -n 4 -- -i --portmask=0x3 --tx-offloads=0x8fff
    testpmd> vlan set qinq on 0
    testpmd> set fwd rxonly
    testpmd> set verbose 1
    testpmd> start
    
  2. Change S-Tag+C-Tag VLAN TPIDs to 0x88A8 + 0x8100:

    testpmd> vlan set outer tpid 0x88A8 0
    testpmd> vlan set inner tpid 0x8100 0
    
  3. Send a packet with set S-Tag+C-Tag VLAN TPIDs to 0x88A8 + 0x8100. verify it can be recognized as qinq packet.

  4. Change S-Tag+C-Tag VLAN TPIDs to 0x9100+0xA100:

    testpmd> vlan set outer tpid 0x9100 0
    testpmd> vlan set inner tpid 0xA100 0
    
  5. Send a packet with set S-Tag+C-Tag VLAN TPIDs to 0x9100+0xA100. verify it can be recognized as qinq packet.

  6. Change S-Tag+C-Tag VLAN TPIDs to 0x8100+0x8100:

    testpmd> vlan set outer tpid 0x8100 0
    testpmd> vlan set inner tpid 0x8100 0
    
  7. Send a packet with set S-Tag+C-Tag VLAN TPIDs to 0x8100+0x8100. verify it can be recognized as qinq packet.

Note:

Send packet with specific S-Tag+C-Tag VLAN TPID:

  1. wrpcap("qinq.pcap",[Ether(dst="68:05:CA:3A:2E:58")/Dot1Q(type=0x8100,vlan=16)/Dot1Q(type=0x8100,vlan=1006)/IP(src="192.168.0.1", dst="192.168.0.2")]).
  2. hexedit qinq.pcap; change tpid field, “ctrl+w” to save, “ctrl+x” to exit.
  3. sendp(rdpcap(“qinq.pcap”), iface=”ens260f0”).

Send packet with specific VLAN TPID:

  1. wrpcap("vlan.pcap",[Ether(dst="68:05:CA:3A:2E:58")/Dot1Q(type=0x8100,vlan=16)/IP(src="192.168.0.1", dst="192.168.0.2")]).
  2. hexedit vlan.pcap; change tpid field, “ctrl+w” to save, “ctrl+x” to exit.
  3. sendp(rdpcap(“vlan.pcap”), iface=”ens260f0”).