2.49. test_srv6 module

class test_srv6.TestSRv6(methodName='runTest')

Bases: framework.VppTestCase

SRv6 Test Case

compare_rx_tx_packet_End(tx_pkt, rx_pkt)

Compare input and output packet after passing End (without PSP)

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_End_DX2(tx_pkt, rx_pkt)

Compare input and output packet after passing End.DX2

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_End_DX4(tx_pkt, rx_pkt)

Compare input and output packet after passing End.DX4

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_End_DX6(tx_pkt, rx_pkt)

Compare input and output packet after passing End.DX6

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_End_PSP(tx_pkt, rx_pkt)

Compare input and output packet after passing End with PSP

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_T_Encaps(tx_pkt, rx_pkt)

Compare input and output packet after passing T.Encaps

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_T_Encaps_IPv4(tx_pkt, rx_pkt)

Compare input and output packet after passing T.Encaps for IPv4

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_T_Encaps_L2(tx_pkt, rx_pkt)

Compare input and output packet after passing T.Encaps for L2

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

compare_rx_tx_packet_T_Insert(tx_pkt, rx_pkt)

Compare input and output packet after passing T.Insert

Parameters:

• tx_pkt – transmitted packet
• rx_pkt – received packet

configure_interface(interface, ipv6=False, ipv4=False, ipv6_table_id=0, ipv4_table_id=0)

Configure interface. :param ipv6: configure IPv6 on interface :param ipv4: configure IPv4 on interface :param ipv6_table_id: FIB table_id for IPv6 :param ipv4_table_id: FIB table_id for IPv4

create_packet_header_IPv4(dst)

Create packet header: IPv4 header, UDP header

Parameters:dst – IPv4 destination address

IPv4 source address is 123.1.1.1 UDP source port and destination port are 1234

create_packet_header_IPv6(dst)

Create packet header: IPv6 header, UDP header

Parameters:dst – IPv6 destination address

IPv6 source address is 1234::1 UDP source port and destination port are 1234

create_packet_header_IPv6_IPv4(dst_inner, dst_outer)

Create packet header: IPv4 encapsulated in IPv6: IPv6 header, IPv4 header, UDP header

Parameters:

• dst_inner (ipv4address) – inner IPv4 destination address
• dst_outer (ipv6address) – outer IPv6 destination address

IPv6 source address is 1234::1 IPv4 source address is 123.1.1.1 UDP source port and destination port are 1234

create_packet_header_IPv6_IPv6(dst_inner, dst_outer)

Create packet header: IPv6 encapsulated in IPv6: IPv6 header, IPv6 header, UDP header

Parameters:

• dst_inner (ipv6address) – inner IPv6 destination address
• dst_outer (ipv6address) – outer IPv6 destination address

IPv6 source addresses are 1234::1 and 4321::1 UDP source port and destination port are 1234

create_packet_header_IPv6_L2(dst_outer, vlan=0)

Create packet header: L2 encapsulated in IPv6: IPv6 header, L2

Parameters:

• dst_outer (ipv6address) – outer IPv6 destination address
• vlan – L2 vlan; if vlan!=0 then add 802.1q header

create_packet_header_IPv6_SRH(sidlist, segleft)

Create packet header: IPv6 header with SRH, UDP header

Parameters:

• sidlist (list) – segment list
• segleft (int) – segments-left field value

IPv6 destination address is set to sidlist[segleft] IPv6 source addresses are 1234::1 and 4321::1 UDP source port and destination port are 1234

create_packet_header_IPv6_SRH_IPv4(dst, sidlist, segleft)

Create packet header: IPv4 encapsulated in SRv6: IPv6 header with SRH, IPv4 header, UDP header

Parameters:

• dst (ipv4address) – inner IPv4 destination address
• sidlist (list) – segment list of outer IPv6 SRH
• segleft (int) – segments-left field of outer IPv6 SRH

Outer IPv6 destination address is set to sidlist[segleft] IPv6 source address is 1234::1 IPv4 source address is 123.1.1.1 UDP source port and destination port are 1234

create_packet_header_IPv6_SRH_IPv6(dst, sidlist, segleft)

Create packet header: IPv6 encapsulated in SRv6: IPv6 header with SRH, IPv6 header, UDP header

Parameters:

• dst (ipv6address) – inner IPv6 destination address
• sidlist (list) – segment list of outer IPv6 SRH
• segleft (int) – segments-left field of outer IPv6 SRH

Outer IPv6 destination address is set to sidlist[segleft] IPv6 source addresses are 1234::1 and 4321::1 UDP source port and destination port are 1234

create_packet_header_IPv6_SRH_L2(sidlist, segleft, vlan=0)

Create packet header: L2 encapsulated in SRv6: IPv6 header with SRH, L2

Parameters:

• sidlist (list) – segment list of outer IPv6 SRH
• segleft (int) – segments-left field of outer IPv6 SRH
• vlan – L2 vlan; if vlan!=0 then add 802.1q header

Outer IPv6 destination address is set to sidlist[segleft] IPv6 source address is 1234::1

create_packet_header_IPv6_SRH_SRH_IPv6(dst, sidlist1, segleft1, sidlist2, segleft2)

Create packet header: IPv6 encapsulated in SRv6 with 2 SRH: IPv6 header with SRH, 2nd SRH, IPv6 header, UDP header

Parameters:

• dst (ipv6address) – inner IPv6 destination address
• sidlist1 (list) – segment list of outer IPv6 SRH
• segleft1 (int) – segments-left field of outer IPv6 SRH
• sidlist2 (list) – segment list of inner IPv6 SRH
• segleft2 (int) – segments-left field of inner IPv6 SRH

Outer IPv6 destination address is set to sidlist[segleft] IPv6 source addresses are 1234::1 and 4321::1 UDP source port and destination port are 1234

create_packet_header_L2(vlan=0)

Create packet header: L2 header

Parameters:vlan – if vlan!=0 then add 802.1q header

create_stream(src_if, dst_if, packet_header, packet_sizes, count)

Create SRv6 input packet stream for defined interface.

Parameters:

• src_if (VppInterface) – Interface to create packet stream for
• dst_if (VppInterface) – destination interface of packet stream
• packet_header – Layer3 scapy packet headers, L2 is added when not provided, Raw(payload) with packet_info is added
• packet_sizes (list) – packet stream pckt sizes,sequentially applied to packets in stream have
• count (int) – number of packets in packet stream

Returns:

list of packets

get_payload_info(packet)

Extract the payload_info from the packet

send_and_verify_pkts(input, pkts, output, compare_func)

Send packets and verify received packets using compare_func

Parameters:

• input – ingress interface of DUT
• pkts – list of packets to transmit
• output – egress interface of DUT
• compare_func – function to compare in and out packets

setUp()

Perform test setup before each test case.

classmethod setUpClass()

setup_interfaces(ipv6=[], ipv4=[], ipv6_table_id=[], ipv4_table_id=[])

Create and configure interfaces.

Parameters:

• ipv6 – list of interface IPv6 capabilities
• ipv4 – list of interface IPv4 capabilities
• ipv6_table_id – list of intf IPv6 FIB table_ids
• ipv4_table_id – list of intf IPv4 FIB table_ids

Returns:

List of created interfaces.

tearDown()

Clean up test setup after each test case.

teardown_interfaces()

Unconfigure and bring down interface.

test_SRv6_End()

Test SRv6 End (without PSP) behavior.

test_SRv6_End_DT4()

Test SRv6 End.DT4 behavior.

test_SRv6_End_DT6()

Test SRv6 End.DT6 behavior.

test_SRv6_End_DX2()

Test SRv6 End.DX2 behavior.

test_SRv6_End_DX4()

Test SRv6 End.DX4 behavior.

test_SRv6_End_DX6()

Test SRv6 End.DX6 behavior.

test_SRv6_End_X()

Test SRv6 End.X (without PSP) behavior.

test_SRv6_End_X_with_PSP()

Test SRv6 End.X with PSP behavior.

test_SRv6_End_with_PSP()

Test SRv6 End with PSP behavior.

test_SRv6_T_Encaps()

Test SRv6 Transit.Encaps behavior for IPv6.

test_SRv6_T_Encaps_IPv4()

Test SRv6 Transit.Encaps behavior for IPv4.

test_SRv6_T_Encaps_L2(*args, **kwargs)

Test SRv6 Transit.Encaps behavior for L2.

test_SRv6_T_Insert()

Test SRv6 Transit.Insert behavior (IPv6 only).

verify_captured_pkts(dst_if, capture, compare_func)

Verify captured packet stream for specified interface. Compare ingress with egress packets using the specified compare fn

Parameters:

• dst_if – egress interface of DUT
• capture – captured packets
• compare_func – function to compare in and out packet