2.125. 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.

classmethod tearDownClass()¶: Perform final cleanup after running all tests in this 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