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L2BD Ethernet Switching
-----------------------

eth2p-eth-l2bdbasemaclrn-eth-2vhost-1vm-func
''''''''''''''''''''''''''''''''''''''''''''

**L2 bridge-domain test cases**   

 - **[Top] Network Topologies:** TG=DUT=VM 3-node topology with VM and double parallel links.  

 - **[Enc] Packet Encapsulations:** Eth-IPv4-ICMPv4 for L2 switching of IPv4; Eth-IPv6-ICMPv6 for L2 switching of IPv6 use. Both apply to all links.  

 - **[Cfg] DUT configuration:** DUT1 is configured with two L2 bridge-domains (L2BD) switching combined with MAC learning enabled.  

 - **[Ver] TG verification:** Test ICMPv4 (or ICMPv6) Echo Request packets are sent in both directions by TG on links to DUT1 via VM; on receive TG verifies packets for correctness and their IPv4 (IPv6) src-addr, dst-addr and MAC addresses.  

 - **[Ref] Applicable standard specifications:**

+------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Name                                                                         | VPP API Test (VAT) Commands History - Commands Used Per Test Case                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
+==============================================================================+===============================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================+
| TC01: DUT with two L2BDs (MAC learn) switches ICMPv4 between TG and VM links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_dump |br| create_vhost_user_if socket /tmp/sock1 |br| create_vhost_user_if socket /tmp/sock2 |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_flags sw_if_index 6 admin-up |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_l2_bridge sw_if_index 5 bd_id 1 shg 0 enable |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 0 enable |br| sw_interface_set_flags sw_if_index 6 admin-up |br| sw_interface_set_l2_bridge sw_if_index 6 bd_id 2 shg 0 enable |br|  |br| **DUT2:** |br| no VAT command executed |br|  |preout|  |
+------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| TC02: DUT with two L2BDs (MAC learn) switches ICMPv6 between TG and VM links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_dump |br| create_vhost_user_if socket /tmp/sock1 |br| create_vhost_user_if socket /tmp/sock2 |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_flags sw_if_index 6 admin-up |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_l2_bridge sw_if_index 5 bd_id 1 shg 0 enable |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 0 enable |br| sw_interface_set_flags sw_if_index 6 admin-up |br| sw_interface_set_l2_bridge sw_if_index 6 bd_id 2 shg 0 enable |br|  |br| **DUT2:** |br| no VAT command executed |br|  |preout|  |
+------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

eth2p-eth-l2bdbasemaclrn-func
'''''''''''''''''''''''''''''

**L2 bridge-domain test cases**   

 - **[Top] Network Topologies:** TG=DUT1 2-node topology with two links between nodes; TG-DUT1-DUT2-TG 3-node circular topology with single links between nodes.  

 - **[Enc] Packet Encapsulations:** Eth-IPv4-ICMPv4 for L2 switching of IPv4; Eth-IPv6-ICMPv6 for L2 switching of IPv6 use. Both apply to all links.  

 - **[Cfg] DUT configuration:** DUT1 and DUT2 are configured with L2 bridge-domain (L2BD) switching combined with MAC learning enabled.  

 - **[Ver] TG verification:** Test ICMPv4 (or ICMPv6) Echo Request packets are sent in both directions by TG on links to DUT1 and DUT2; on receive TG verifies packets for correctness and their IPv4 (IPv6) src-addr, dst-addr and MAC addresses.  

 - **[Ref] Applicable standard specifications:**

+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Name                                                                     | VPP API Test (VAT) Commands History - Commands Used Per Test Case                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
+==========================================================================+=================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================+
| TC01: DUT reports active interfaces                                      |  |prein| **DUT1:** |br| no VAT command executed |br|  |br| **DUT2:** |br| no VAT command executed |br|  |preout|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| TC02: DUT with L2BD (MAC learning) switch ICMPv4 between two TG links    |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 1 shg 0 enable |br|  |br| **DUT2:** |br| no VAT command executed |br|  |preout|                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| TC03: DUT1 and DUT2 with L2BD (MAC learning) switch between two TG links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_set_l2_bridge sw_if_index 3 bd_id 1 shg 0 enable |br|  |br| **DUT2:** |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 0 enable |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_set_l2_bridge sw_if_index 3 bd_id 2 shg 0 enable |br|  |preout|  |
+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

eth2p-eth-l2bdbasemacstc-eth-2vhost-1vm-func
''''''''''''''''''''''''''''''''''''''''''''

**L2 bridge-domain test cases**   

 - **[Top] Network Topologies:** TG=DUT=VM 3-node topology with VM and double parallel links.  

 - **[Enc] Packet Encapsulations:** Eth-IPv4-ICMPv4 for L2 switching of IPv4; Eth-IPv6-ICMPv6 for L2 switching of IPv6 use. Both apply to all links.  

 - **[Cfg] DUT configuration:** DUT1 is configured with two L2 bridge-domains (L2BD) switching combined with static MACs.  

 - **[Ver] TG verification:** Test ICMPv4 (or ICMPv6) Echo Request packets are sent in both directions by TG on links to DUT1 via VM; on receive TG verifies packets for correctness and their IPv4 (IPv6) src-addr, dst-addr and MAC addresses.  

 - **[Ref] Applicable standard specifications:**

+--------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Name                                                                           | VPP API Test (VAT) Commands History - Commands Used Per Test Case                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
+================================================================================+===========================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================+
| TC01: DUT with two L2BDs (static MACs) switches ICMPv4 between TG and VM links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_dump |br| create_vhost_user_if socket /tmp/sock1 |br| create_vhost_user_if socket /tmp/sock2 |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_flags sw_if_index 6 admin-up |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 0 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_l2_bridge sw_if_index 5 bd_id 1 shg 0 enable |br| l2fib_add_del mac fa:16:3e:11:f1:2f bd_id 1 sw_if_index 2 |br| l2fib_add_del mac fa:16:3e:8c:0b:8f bd_id 1 sw_if_index 5 |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 0 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 0 enable |br| sw_interface_set_flags sw_if_index 6 admin-up |br| sw_interface_set_l2_bridge sw_if_index 6 bd_id 2 shg 0 enable |br| l2fib_add_del mac fa:16:3e:8c:0b:8f bd_id 2 sw_if_index 1 |br| l2fib_add_del mac fa:16:3e:11:f1:2f bd_id 2 sw_if_index 6 |br|  |br| **DUT2:** |br| no VAT command executed |br|  |preout|  |
+--------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| TC02: DUT with two L2BDs (static MACs) switches ICMPv6 between TG and VM links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_dump |br| create_vhost_user_if socket /tmp/sock1 |br| create_vhost_user_if socket /tmp/sock2 |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_flags sw_if_index 6 admin-up |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 0 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 5 admin-up |br| sw_interface_set_l2_bridge sw_if_index 5 bd_id 1 shg 0 enable |br| l2fib_add_del mac fa:16:3e:11:f1:2f bd_id 1 sw_if_index 2 |br| l2fib_add_del mac fa:16:3e:8c:0b:8f bd_id 1 sw_if_index 5 |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 0 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 0 enable |br| sw_interface_set_flags sw_if_index 6 admin-up |br| sw_interface_set_l2_bridge sw_if_index 6 bd_id 2 shg 0 enable |br| l2fib_add_del mac fa:16:3e:8c:0b:8f bd_id 2 sw_if_index 1 |br| l2fib_add_del mac fa:16:3e:11:f1:2f bd_id 2 sw_if_index 6 |br|  |br| **DUT2:** |br| no VAT command executed |br|  |preout|  |
+--------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

eth2p-eth-l2bdbasemacstc-func
'''''''''''''''''''''''''''''

**L2 bridge-domain test cases**   

 - **[Top] Network Topologies:** TG-DUT1-DUT2-TG 3-node circular topology with single links between nodes.  

 - **[Enc] Packet Encapsulations:** Eth-IPv4-ICMPv4 for L2 switching of IPv4; Eth-IPv6-ICMPv6 for L2 switching of IPv6 use. Both apply to all links.  

 - **[Cfg] DUT configuration:** DUT1 and DUT2 are configured with L2 bridge-domain (L2BD) switching combined with static MACs.  

 - **[Ver] TG verification:** Test ICMPv4 (or ICMPv6) Echo Request packets are sent in both directions by TG on links to DUT1 and DUT2; on receive TG verifies packets for correctness and their IPv4 (IPv6) src-addr, dst-addr and MAC addresses.  

 - **[Ref] Applicable standard specifications:**

+-------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Name                                                                    | VPP API Test (VAT) Commands History - Commands Used Per Test Case                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
+=========================================================================+=============================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================+
| TC01: DUT1 and DUT2 with L2BD (static MACs) switch between two TG links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 0 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 1 shg 0 enable |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_set_l2_bridge sw_if_index 3 bd_id 1 shg 0 enable |br| l2fib_add_del mac fa:16:3e:8c:0b:8f bd_id 1 sw_if_index 1 |br| l2fib_add_del mac fa:16:3e:f7:92:c8 bd_id 1 sw_if_index 3 |br|  |br| **DUT2:** |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 0 arp-term 0 |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 0 enable |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_set_l2_bridge sw_if_index 3 bd_id 2 shg 0 enable |br| l2fib_add_del mac fa:16:3e:8c:0b:8f bd_id 2 sw_if_index 3 |br| l2fib_add_del mac fa:16:3e:f7:92:c8 bd_id 2 sw_if_index 1 |br|  |preout|  |
+-------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

eth4p-eth-l2bdbasemaclrn-l2shg-func
'''''''''''''''''''''''''''''''''''

**L2 bridge-domain test cases**   

 - **[Top] Network Topologies:** TG=DUT1=DUT2=TG 3-node circular topology with double parallel links.  

 - **[Enc] Packet Encapsulations:** Eth-IPv4-ICMPv4 for L2 switching of IPv4; Eth-IPv6-ICMPv6 for L2 switching of IPv6 use. Both apply to all links.  

 - **[Cfg] DUT configuration:** DUT1 and DUT2 are configured with L2 bridge-domain (L2BD) switching combined with MAC learning enabled and Split Horizon Groups (SHG).  

 - **[Ver] TG verification:** Test ICMPv4 (or ICMPv6) Echo Request packets are sent in both directions by TG on links to DUT1 and DUT2; on receive TG verifies packets for correctness and their IPv4 (IPv6) src-addr, dst-addr and MAC addresses.  

 - **[Ref] Applicable standard specifications:**

+--------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Name                                                                           | VPP API Test (VAT) Commands History - Commands Used Per Test Case                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+================================================================================+===================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================+
| TC01: DUT1 and DUT2 with L2BD (MAC learn) and SHG switch between four TG links |  |prein| **DUT1:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 1 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 1 shg 3 enable |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 1 shg 3 enable |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_set_l2_bridge sw_if_index 3 bd_id 1 shg 0 enable |br|  |br| **DUT2:** |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_dump |br| bridge_domain_add_del bd_id 2 flood 1 uu-flood 1 forward 1 learn 1 arp-term 0 |br| sw_interface_set_flags sw_if_index 2 admin-up |br| sw_interface_set_l2_bridge sw_if_index 2 bd_id 2 shg 4 enable |br| sw_interface_set_flags sw_if_index 1 admin-up |br| sw_interface_set_l2_bridge sw_if_index 1 bd_id 2 shg 4 enable |br| sw_interface_set_flags sw_if_index 3 admin-up |br| sw_interface_set_l2_bridge sw_if_index 3 bd_id 2 shg 0 enable |br|  |preout|  |
+--------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+