+
+| Send IPv4 ping packet and verify headers
+| | [Documentation] | Send ICMP Echo Request message from source port of source\
+| | ... | node to destination port of destination node and check the received\
+| | ... | ICMP Echo Reply message for correctness inlcuding source and\
+| | ... | destination IPv4 and MAC addresses and ttl value. If the destination\
+| | ... | node is TG type the ttl of received ICMP Echo Request message is\
+| | ... | checked too and corresponding ICMP Echo Reply message is created.
+| | ...
+| | ... | *Arguments:*
+| | ...
+| | ... | _NOTE:_ Arguments are based on topology:
+| | ... | TG(if1)->(if1)DUT(if2)->TG(if2)
+| | ...
+| | ... | - tx_node - Source node to execute scripts on (mostly TG).
+| | ... | Type: dictionary
+| | ... | - tx_port - Source interface of tx_node. Type: string
+| | ... | - rx_node - Destinantion node. Type: dictionary
+| | ... | - rx_port - Destination interface of rx_node. Type: string
+| | ... | - src_ip - IP address of source interface or source remote host.
+| | ... | Type: string
+| | ... | - dst_ip - IP address of destination interface or destination remote
+| | ... | host. Type: string
+| | ... | - first_hop_mac - Destination MAC address for the first hop in
+| | ... | the path. Type: string
+| | ... | - hops - Expected number of hops. Type: string or integer
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send IPv4 ping packet and verify headers \| ${nodes['TG']} \
+| | ... | \| eth2 \| ${nodes['DUT1']} \| eth3 \| 16.0.0.1 \| 32.0.0.1 \
+| | ... | \| 08:00:27:cc:4f:54 \| 1 \|
+| | ...
+| | [Arguments] | ${tx_node} | ${tx_port} | ${rx_node} | ${rx_port}
+| | ... | ${src_ip} | ${dst_ip} | ${first_hop_mac} | ${hops}
+| | ...
+| | ${src_mac}= | Get interface MAC | ${tx_node} | ${tx_port}
+| | ${dst_mac}= | Get interface MAC | ${rx_node} | ${rx_port}
+| | ${is_dst_tg}= | Is TG node | ${rx_node}
+| | ${tx_port_name}= | Get interface name | ${tx_node} | ${tx_port}
+| | ${rx_port_name}= | Get interface name | ${rx_node} | ${rx_port}
+| | ${args}= | Traffic Script Gen Arg | ${rx_port_name} | ${tx_port_name}
+| | ... | ${src_mac} | ${dst_mac} | ${src_ip} | ${dst_ip}
+| | ${args}= | Catenate | ${args} | --hops ${hops}
+| | ... | --first_hop_mac ${first_hop_mac} | --is_dst_tg ${is_dst_tg}
+| | Run Traffic Script On Node | ipv4_ping_ttl_check.py | ${tx_node} | ${args}
+
+| Send IPv6 echo request packet and verify headers
+| | [Documentation] | Send ICMPv6 Echo Request message from source port of\
+| | ... | source node to destination port of destination node and check\
+| | ... | the received ICMPv6 Echo Reply message for correctness inlcuding\
+| | ... | source and destination IPv4 and MAC addresses and hlim value. If\
+| | ... | the destination node is TG type the hlim of received ICMP Echo\
+| | ... | Request message is checked too and corresponding ICMP Echo Reply\
+| | ... | message is created and sent.
+| | ...
+| | ... | *Arguments:*
+| | ...
+| | ... | _NOTE:_ Arguments are based on topology:
+| | ... | TG(if1)->(if1)DUT(if2)->TG(if2)
+| | ...
+| | ... | - tx_node - Source node to execute scripts on (mostly TG).
+| | ... | Type: dictionary
+| | ... | - tx_port - Source interface of tx_node. Type: string
+| | ... | - rx_node - Destinantion node. Type: dictionary
+| | ... | - rx_port - Destination interface of rx_node. Type: string
+| | ... | - src_ip - IPv6 address of source interface or source remote host.
+| | ... | Type: string
+| | ... | - dst_ip - IPv6 address of destination interface or destination remote
+| | ... | host. Type: string
+| | ... | - src_nh_mac - Destination MAC address for the first hop in
+| | ... | the path in direction from source node. Type: string
+| | ... | - hops - Expected number of hops. Type: string or integer
+| | ... | - dst_nh_mac - Destination MAC address for the first hop in
+| | ... | the path in direction from destination node (Optional). Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send IPv6 echo request packet and verify headers \
+| | ... | \| ${nodes['TG']} \| eth2 \| ${nodes['DUT1']} \| eth3 \| 3ffe:5f::1 \
+| | ... | \| 3ffe:5f::2 \| 08:00:27:cc:4f:54 \| 1 \|
+| | ...
+| | [Arguments] | ${tx_node} | ${tx_port} | ${rx_node} | ${rx_port} | ${src_ip}
+| | ... | ${dst_ip} | ${src_nh_mac} | ${hops} | ${dst_nh_mac}=${NONE}
+| | ...
+| | ${src_mac}= | Get interface MAC | ${tx_node} | ${tx_port}
+| | ${dst_mac}= | Get interface MAC | ${rx_node} | ${rx_port}
+| | ${is_dst_tg}= | Is TG node | ${rx_node}
+| | ${tx_port_name}= | Get interface name | ${tx_node} | ${tx_port}
+| | ${rx_port_name}= | Get interface name | ${rx_node} | ${rx_port}
+| | ${args}= | Traffic Script Gen Arg | ${rx_port_name} | ${tx_port_name}
+| | ... | ${src_mac} | ${dst_mac} | ${src_ip} | ${dst_ip}
+| | ${args}= | Catenate | ${args} | --h_num ${hops} | --src_nh_mac ${src_nh_mac}
+| | ... | --dst_nh_mac ${dst_nh_mac} | --is_dst_tg ${is_dst_tg}
+| | Run Traffic Script On Node | icmpv6_echo_req_resp.py | ${tx_node} | ${args}
+
+| Send packet and verify marking
+| | [Documentation] | Send packet and verify DSCP of the received packet.
+| | ...
+| | ... | *Arguments:*
+| | ... | - node - TG node. Type: dictionary
+| | ... | - tx_if - TG transmit interface. Type: string
+| | ... | - rx_if - TG receive interface. Type: string
+| | ... | - src_mac - Packet source MAC. Type: string
+| | ... | - dst_mac - Packet destination MAC. Type: string
+| | ... | - src_ip - Packet source IP address. Type: string
+| | ... | - dst_ip - Packet destination IP address. Type: string
+| | ...
+| | ... | *Example:*
+| | ... | \| Send packet and verify marking \| ${nodes['TG']} \| eth1 \| eth2 \
+| | ... | \| 08:00:27:87:4d:f7 \| 52:54:00:d4:d8:22 \| 192.168.122.2 \
+| | ... | \| 192.168.122.1 \|
+| | ...
+| | [Arguments] | ${node} | ${tx_if} | ${rx_if} | ${src_mac} | ${dst_mac}
+| | ... | ${src_ip} | ${dst_ip}
+| | ...
+| | ${dscp}= | DSCP AF22
+| | ${tx_if_name}= | Get Interface Name | ${node} | ${tx_if}
+| | ${rx_if_name}= | Get Interface Name | ${node} | ${rx_if}
+| | ${args}= | Traffic Script Gen Arg | ${rx_if_name} | ${tx_if_name}
+| | ... | ${src_mac} | ${dst_mac} | ${src_ip} | ${dst_ip}
+| | ${dscp_num}= | Get DSCP Num Value | ${dscp}
+| | ${args}= | Set Variable | ${args} --dscp ${dscp_num}
+| | Run Traffic Script On Node | policer.py | ${node} | ${args}