+Delete the configured extra IPv4/IPv6 Addresss and verify traffic
+ [Documentation] Delete IPv4/IPv6 Address configuration on Interfaces and verify traffic
+ FOR ${index} IN RANGE 0 ${LOOP_COUNT}
+ OpenStackOperations.Execute Command on VM Instance @{network_list}[${index}] @{VM_IPV6}[${index}] sudo ip -6 addr del @{EXTRA_NW_IPV6}[${index}]/64 dev eth0
+ END
+ FOR ${index} IN RANGE 0 ${LOOP_COUNT}
+ OpenStackOperations.Execute Command on VM Instance @{network_list}[${index}] @{VM_IPV4}[${index}] sudo ifconfig eth0:1 down
+ END
+ BuiltIn.Wait Until Keyword Succeeds 10x 30s Verify Ipv4 Data No Traffic
+ BuiltIn.Wait Until Keyword Succeeds 10x 30s Verify Ipv6 Data No Traffic
+ BuiltIn.Wait Until Keyword Succeeds 10x 40s Verify Table 21 for No VPN Routes
+
+Configure Again Extra IPv4/IPv6 Addresss On Interface For Subnet Routing
+ [Documentation] Extra IPv4/IPv6 Address configuration on Interfaces
+ FOR ${index} IN RANGE 0 ${LOOP_COUNT}
+ OpenStackOperations.Execute Command on VM Instance @{network_list}[${index}] @{VM_IPV6}[${index}] sudo ip -6 addr add @{EXTRA_NW_IPV6}[${index}]/64 dev eth0; sudo ifconfig eth0 allmulti; ip -6 a
+ END
+ FOR ${index} IN RANGE 0 ${LOOP_COUNT}
+ OpenStackOperations.Execute Command on VM Instance @{network_list}[${index}] @{VM_IPV4}[${index}] sudo ifconfig eth0:1 @{EXTRA_NW_IPV4}[${index}] netmask 255.255.255.0 up; ip a
+ END
+ BuiltIn.Wait Until Keyword Succeeds 10x 30s Verify Ipv4 Data Traffic
+ BuiltIn.Wait Until Keyword Succeeds 10x 30s Verify Ipv6 Data Traffic
+
+Remove Interface From Router And Verify Traffic
+ [Documentation] Remove subnet from router and check data path verification
+ ${router_id} = OpenStackOperations.Get Router Id ${ROUTER}
+ FOR ${interface} IN @{SUBNETS4}
+ OpenStackOperations.Remove Interface ${ROUTER} ${INTERFACE}
+ END
+ ${interface_output} = OpenStackOperations.Show Router Interface ${ROUTER}
+ FOR ${interface} IN @{SUBNETS6}
+ OpenStackOperations.Remove Interface ${ROUTER} ${INTERFACE}
+ END
+ ${interface_output} = OpenStackOperations.Show Router Interface ${ROUTER}
+ FOR ${interface} IN @{SUBNETS4}
+ ${subnet_id} = OpenStackOperations.Get Subnet Id ${INTERFACE}
+ BuiltIn.Should Not Contain ${interface_output} ${subnet_id}
+ END
+ FOR ${interface} IN @{SUBNETS6}
+ ${subnet_id} = OpenStackOperations.Get Subnet Id ${INTERFACE}
+ BuiltIn.Should Not Contain ${interface_output} ${subnet_id}
+ END
+ BuiltIn.Wait Until Keyword Succeeds 10x 30s Verify Ipv4 Data No Traffic
+
+Add Interface To Router And Verify Traffic
+ [Documentation] Add interface router to again and check data path verification
+ FOR ${interface} IN @{SUBNETS4}
+ OpenStackOperations.Add Router Interface ${ROUTER} ${interface}
+ END
+ FOR ${interface} IN @{SUBNETS6}
+ OpenStackOperations.Add Router Interface ${ROUTER} ${interface}
+ END
+ BuiltIn.Wait Until Keyword Succeeds 10x 60s Verify Ipv4 Data Traffic
+ BuiltIn.Wait Until Keyword Succeeds 10x 60s Verify Ipv6 Data Traffic
+