+| Initialize IPv6 forwarding over SRv6 with encapsulation with '${n}' x SID '${prepos}' decapsulation in 3-node circular topology
+| | [Documentation]
+| | ... | Set UP state on VPP interfaces in path on nodes in 3-node circular
+| | ... | topology. Get the interface MAC addresses and setup neighbours on all
+| | ... | VPP interfaces. Setup IPv6 addresses on all interfaces. Set segment
+| | ... | routing for IPv6 for required number of SIDs and configure IPv6 routes
+| | ... | on both DUT nodes.
+| | ...
+| | ${tg1_if1_mac}= | Get Interface MAC | ${tg} | ${tg_if1}
+| | ${tg1_if2_mac}= | Get Interface MAC | ${tg} | ${tg_if2}
+| | ${dut1_if2_mac}= | Get Interface MAC | ${dut1} | ${dut1_if2}
+| | ${dut2_if1_mac}= | Get Interface MAC | ${dut2} | ${dut2_if1}
+| | VPP Set If IPv6 Addr | ${dut1} | ${dut1_if1} | ${dut1_if1_ip6} | ${prefix}
+| | VPP Set If IPv6 Addr | ${dut1} | ${dut1_if2} | ${dut1_if2_ip6} | ${prefix}
+| | VPP Set If IPv6 Addr | ${dut2} | ${dut2_if1} | ${dut2_if1_ip6} | ${prefix}
+| | VPP Set If IPv6 Addr | ${dut2} | ${dut2_if2} | ${dut2_if2_ip6} | ${prefix}
+| | Suppress ICMPv6 router advertisement message | ${nodes}
+| | :FOR | ${number} | IN RANGE | 2 | ${dst_addr_nr}+2
+| | | ${hexa_nr}= | Convert To Hex | ${number}
+| | | Add Ip Neighbor | ${dut1} | ${dut1_if1} | ${tg_if1_ip6_subnet}${hexa_nr}
+| | | ... | ${tg1_if1_mac}
+| | | Add Ip Neighbor | ${dut2} | ${dut2_if2} | ${tg_if2_ip6_subnet}${hexa_nr}
+| | | ... | ${tg1_if2_mac}
+| | Add Ip Neighbor | ${dut1} | ${dut1_if2} | ${dut2_if1_ip6} | ${dut2_if1_mac}
+| | Add Ip Neighbor | ${dut2} | ${dut2_if1} | ${dut1_if2_ip6} | ${dut1_if2_mac}
+| | ${sid1}= | Set Variable If
+| | ... | "${n}" == "1" | ${dut2_sid1}
+| | ... | "${n}" == "2" | ${dut2_sid1_1}
+| | ${sid2}= | Set Variable If
+| | ... | "${n}" == "1" | ${dut1_sid2}
+| | ... | "${n}" == "2" | ${dut1_sid2_1}
+| | Vpp Route Add | ${dut1} | ${sid1} | ${sid_prefix} | ${dut2_if1_ip6}
+| | ... | ${dut1_if2}
+| | Vpp Route Add | ${dut2} | ${sid2} | ${sid_prefix} | ${dut1_if2_ip6}
+| | ... | ${dut2_if1}
+| | Set SR Encaps Source Address on DUT | ${dut1} | ${dut1_sid1}
+| | @{sid_list_dir0}= | Run Keyword If | "${n}" == "1"
+| | ... | Create List | ${dut2_sid1}
+| | ... | ELSE IF | "${n}" == "2"
+| | ... | Create List | ${dut2_sid1_1} | ${dut2_sid1_2}
+| | Configure SR Policy on DUT | ${dut1} | ${dut1_bsid} | encap
+| | ... | @{sid_list_dir0}
+| | Configure SR Steer on DUT | ${dut1} | L3 | ${dut1_bsid}
+| | ... | ip_addr=${tg_if2_ip6_subnet} | prefix=${sid_prefix}
+| | Run Keyword If | "${n}" == "1"
+| | ... | Configure SR LocalSID on DUT | ${dut2} | ${dut2_sid1} | end.dx6
+| | ... | interface=${dut2_if2} | next_hop=${tg_if2_ip6_subnet}2
+| | Run Keyword If | "${n}" == "2"
+| | ... | Configure SR LocalSID on DUT | ${dut2} | ${dut2_sid1_1} | end
+| | Run Keyword If | "${n}" == "2" and "${prepos}" != "without"
+| | ... | Configure SR LocalSID on DUT | ${dut2} | ${dut2_sid1_2} | end.dx6
+| | ... | interface=${dut2_if2} | next_hop=${tg_if2_ip6_subnet}2
+| | Run Keyword If | "${n}" == "2" and "${prepos}" == "without"
+| | ... | Vpp Route Add | ${dut2} | ${dut2_sid1_2} | ${sid_prefix}
+| | ... | ${tg_if2_ip6_subnet}2 | ${dut2_if2}
+| | Set SR Encaps Source Address on DUT | ${dut2} | ${dut2_sid2}
+| | @{sid_list_dir1}= | Run Keyword If | "${n}" == "1"
+| | ... | Create List | ${dut1_sid2}
+| | ... | ELSE IF | "${n}" == "2"
+| | ... | Create List | ${dut1_sid2_1} | ${dut1_sid2_2}
+| | Configure SR Policy on DUT | ${dut2} | ${dut2_bsid} | encap
+| | ... | @{sid_list_dir1}
+| | Configure SR Steer on DUT | ${dut2} | L3 | ${dut2_bsid}
+| | ... | ip_addr=${tg_if1_ip6_subnet} | prefix=${sid_prefix}
+| | Run Keyword If | "${n}" == "1"
+| | ... | Configure SR LocalSID on DUT | ${dut1} | ${dut1_sid2} | end.dx6
+| | ... | interface=${dut1_if1} | next_hop=${tg_if1_ip6_subnet}2
+| | Run Keyword If | "${n}" == "2"
+| | ... | Configure SR LocalSID on DUT | ${dut1} | ${dut1_sid2_1} | end
+| | Run Keyword If | "${n}" == "2" and "${prepos}" != "without"
+| | ... | Configure SR LocalSID on DUT | ${dut1} | ${dut1_sid2_2} | end.dx6
+| | ... | interface=${dut1_if1} | next_hop=${tg_if1_ip6_subnet}2
+| | Run Keyword If | "${n}" == "2" and "${prepos}" == "without"
+| | ... | Vpp Route Add | ${dut1} | ${dut1_sid2_2} | ${sid_prefix}
+| | ... | ${tg_if1_ip6_subnet}2 | ${dut1_if1}
+