+| Node "${from_node}" interface "${from_port}" can route to node "${to_node}" interface "${to_port}" ${hops} hops away using IPv4
+| | ${src_ip}= | Get IPv4 address of node "${from_node}" interface "${from_port}" from "${nodes_ipv4_addr}"
+| | ${dst_ip}= | Get IPv4 address of node "${to_node}" interface "${to_port}" from "${nodes_ipv4_addr}"
+| | ${src_mac}= | Get interface mac | ${from_node} | ${from_port}
+| | ${dst_mac}= | Get interface mac | ${to_node} | ${to_port}
+| | ${is_dst_tg}= | Is TG node | ${to_node}
+| | ${adj_node} | ${adj_int}= | Get adjacent node and interface | ${nodes} | ${from_node} | ${from_port}
+| | ${args}= | Traffic Script Gen Arg | ${to_port} | ${from_port} | ${src_mac}
+| | | ... | ${dst_mac} | ${src_ip} | ${dst_ip}
+| | ${args}= | Catenate | ${args} | --hops ${hops} | --first_hop_mac ${adj_int['mac_address']}
+| | | ... | --is_dst_tg ${is_dst_tg}
+| | Run Traffic Script On Node | ipv4_ping_ttl_check.py | ${from_node} | ${args}
+
+| Ipv4 icmp echo sweep
+| | [Documentation] | Type of the src_node must be TG and dst_node must be DUT
+| | [Arguments] | ${src_node} | ${dst_node} | ${start_size} | ${end_size} | ${step}
+| | Append Nodes | ${src_node} | ${dst_node}
+| | Compute Path
+| | ${src_port} | ${src_node}= | First Interface
+| | ${dst_port} | ${dst_node}= | Last Interface
+| | ${src_ip}= | Get IPv4 address of node "${src_node}" interface "${src_port}" from "${nodes_ipv4_addr}"
+| | ${dst_ip}= | Get IPv4 address of node "${dst_node}" interface "${dst_port}" from "${nodes_ipv4_addr}"
+| | ${src_mac}= | Get Interface Mac | ${src_node} | ${src_port}
+| | ${dst_mac}= | Get Interface Mac | ${dst_node} | ${dst_port}
+| | ${args}= | Traffic Script Gen Arg | ${src_port} | ${src_port} | ${src_mac}
+| | | ... | ${dst_mac} | ${src_ip} | ${dst_ip}
+| | ${args}= | Set Variable
+| | ... | ${args} --start_size ${start_size} --end_size ${end_size} --step ${step}
+| | Run Traffic Script On Node | ipv4_sweep_ping.py | ${src_node} | ${args} | ${20}
+
+| Send ARP request and validate response
+| | [Arguments] | ${tg_node} | ${vpp_node}
+| | ${link_name}= | Get first active connecting link between node "${tg_node}" and "${vpp_node}"
+| | ${src_if}= | Get interface by link name | ${tg_node} | ${link_name}
+| | ${dst_if}= | Get interface by link name | ${vpp_node} | ${link_name}
+| | ${src_ip}= | Get IPv4 address of node "${tg_node}" interface "${src_if}" from "${nodes_ipv4_addr}"
+| | ${dst_ip}= | Get IPv4 address of node "${vpp_node}" interface "${dst_if}" from "${nodes_ipv4_addr}"
+| | ${src_mac}= | Get node link mac | ${tg_node} | ${link_name}
+| | ${dst_mac}= | Get node link mac | ${vpp_node} | ${link_name}
+| | ${args}= | Traffic Script Gen Arg | ${src_if} | ${src_if} | ${src_mac}
+| | | ... | ${dst_mac} | ${src_ip} | ${dst_ip}
+| | Run Traffic Script On Node | arp_request.py | ${tg_node} | ${args}
+
+| IP addresses are set on interfaces
+| | [Documentation] | Iterates through @{args} list and Set Interface Address
+| | ... | for every (${dut_node}, ${interface}, ${address},
+| | ... | ${prefix}) tuple.
+| | ...
+| | ... | *Arguments:*
+| | ... | - ${dut_node} - Node where IP address should be set to.
+| | ... | Type: dictionary
+| | ... | - ${interface} - Interface name. Type: string
+| | ... | - ${address} - IP address. Type: string
+| | ... | - ${prefix} - Prefix length. Type: integer
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| IP addresses are set on interfaces \
+| | ... | \| ${dut1_node} \| ${dut1_to_dut2} \| 192.168.1.1 \| 24 \|
+| | ... | \| ... \| ${dut1_node} \| ${dut1_to_tg} \| 192.168.2.1 \| 24 \|
+| | ...
+| | [Arguments] | @{args}
+| | :FOR | ${dut_node} | ${interface} | ${address} | ${prefix} | IN | @{args}
+| | | Set Interface Address | ${dut_node} | ${interface} | ${address}
+| | | ... | ${prefix}