2.76. test_srv6_as module

class test_srv6_as.TestSRv6(methodName='runTest')

Bases: framework.VppTestCase

SRv6 Static Proxy plugin Test Case

compare_rx_tx_packet_End_AS_IPv4_in(tx_pkt, rx_pkt)

Compare input and output packet after passing End.AS

Parameters:
  • tx_pkt – transmitted packet
  • rx_pkt – received packet
compare_rx_tx_packet_End_AS_IPv4_out(tx_pkt, rx_pkt)

Compare input and output packet after passing End.AS with IPv4

Parameters:
  • tx_pkt – transmitted packet
  • rx_pkt – received packet
compare_rx_tx_packet_End_AS_IPv6_in(tx_pkt, rx_pkt)

Compare input and output packet after passing End.AS

Parameters:
  • tx_pkt – transmitted packet
  • rx_pkt – received packet
compare_rx_tx_packet_End_AS_IPv6_out(tx_pkt, rx_pkt)

Compare input and output packet after passing End.AS with IPv6

Parameters:
  • tx_pkt – transmitted packet
  • rx_pkt – received packet
compare_rx_tx_packet_End_AS_L2_in(tx_pkt, rx_pkt)

Compare input and output packet after passing End.AS

Parameters:
  • tx_pkt – transmitted packet
  • rx_pkt – received packet
compare_rx_tx_packet_End_AS_L2_out(tx_pkt, rx_pkt)

Compare input and output packet after passing End.AS with L2

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()

Create packet header: IPv4 header, UDP header

Parameters:dst – IPv4 destination address

IPv4 source address is 123.1.1.1 IPv4 destination address is 124.1.1.1 UDP source port and destination port are 1234

create_packet_header_IPv6()

Create packet header: IPv6 header, UDP header

Parameters:dst – IPv6 destination address

IPv6 source address is 1234::1 IPv6 destination address is 4321::1 UDP source port and destination port are 1234

create_packet_header_IPv6_SRH_IPv4(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 IPv4 destination address is 124.1.1.1 UDP source port and destination port are 1234

create_packet_header_IPv6_SRH_IPv6(sidlist, segleft)

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

Parameters:
  • sidlist (list) – segment list of outer IPv6 SRH
  • segleft (int) – segments-left field of outer IPv6 SRH

Outer IPv6 source address is set to 5678::1 Outer IPv6 destination address is set to sidlist[segleft] IPv6 source addresses is 1234::1 IPv6 destination address is 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_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

run_SRv6_End_AS_IPv4(sid_list, test_sid_index, rewrite_src_addr)

Run SRv6 End.AS test with IPv4 traffic.

run_SRv6_End_AS_IPv6(sid_list, test_sid_index, rewrite_src_addr)

Run SRv6 End.AS test with IPv6 traffic.

run_SRv6_End_AS_L2(sid_list, test_sid_index, rewrite_src_addr)

Run SRv6 End.AS test with L2 traffic.

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()

Perform class setup before running the testcase Remove shared memory files, start vpp and connect the vpp-api

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_AS_IPv4_SRH()

Test SRv6 End.AS behavior with IPv4 traffic and SRH rewrite.

test_SRv6_End_AS_IPv4_noSRH()

Test SRv6 End.AS behavior with IPv4 traffic and no SRH rewrite.

test_SRv6_End_AS_IPv6_SRH()

Test SRv6 End.AS behavior with IPv6 traffic and SRH rewrite.

test_SRv6_End_AS_IPv6_noSRH()

Test SRv6 End.AS behavior with IPv6 traffic and no SRH rewrite.

test_SRv6_End_AS_L2_SRH()

Test SRv6 End.AS behavior with L2 traffic and SRH rewrite.

test_SRv6_End_AS_L2_noSRH()

Test SRv6 End.AS behavior with L2 traffic and no SRH rewrite.

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