2.63. test_ip6_vrf_multi_instance module¶

IP6 VRF Multi-instance Test Case HLD:

NOTES:

higher number of pg-ip6 interfaces causes problems => only 15 pg-ip6 interfaces in 5 VRFs are tested
jumbo packets in configuration with 15 pg-ip6 interfaces leads to problems too

config 1

add 15 pg-ip6 interfaces
configure 5 hosts per pg-ip6 interface
configure 4 VRFs
add 3 pg-ip6 interfaces per VRF

test 1

send IP6 packets between all pg-ip6 interfaces in all VRF groups

verify 1

check VRF data by parsing output of ip_route_dump API command
all packets received correctly in case of pg-ip6 interfaces in the same VRF
no packet received in case of pg-ip6 interfaces not in VRF
no packet received in case of pg-ip6 interfaces in different VRFs

config 2

reset 2 VRFs

test 2

send IP6 packets between all pg-ip6 interfaces in all VRF groups

verify 2

check VRF data by parsing output of ip_route_dump API command
all packets received correctly in case of pg-ip6 interfaces in the same VRF
no packet received in case of pg-ip6 interfaces not in VRF
no packet received in case of pg-ip6 interfaces in different VRFs

config 3

add 1 of reset VRFs and 1 new VRF

test 3

send IP6 packets between all pg-ip6 interfaces in all VRF groups

verify 3

check VRF data by parsing output of ip_route_dump API command
all packets received correctly in case of pg-ip6 interfaces in the same VRF
no packet received in case of pg-ip6 interfaces not in VRF
no packet received in case of pg-ip6 interfaces in different VRFs

config 4

reset all VRFs (i.e. no VRF except VRF=0 created)

test 4

send IP6 packets between all pg-ip6 interfaces in all VRF groups

verify 4

check VRF data by parsing output of ip_route_dump API command
all packets received correctly in case of pg-ip6 interfaces in the same VRF
no packet received in case of pg-ip6 interfaces not in VRF
no packet received in case of pg-ip6 interfaces in different VRFs

class test_ip6_vrf_multi_instance.TestIP6VrfMultiInst(methodName='runTest')¶

Bases: framework.VppTestCase

IP6 VRF Multi-instance Test Case

create_stream(src_if, packet_sizes)¶

Create input packet stream for defined interface using hosts list.

Parameters

src_if (object) – Interface to create packet stream for.
packet_sizes (list) – List of required packet sizes.

Returns

Stream of packets.

create_stream_crosswise_vrf(src_if, vrf_id, packet_sizes)¶

Create input packet stream for negative test for leaking across different VRFs for defined interface using hosts list.

Parameters

src_if (object) – Interface to create packet stream for.
vrf_id (int) – The FIB table / VRF ID where src_if is assigned.
packet_sizes (list) – List of required packet sizes.

Returns

Stream of packets.

create_vrf_and_assign_interfaces(count, start=1)¶

Create required number of FIB tables / VRFs, put 3 pg-ip6 interfaces to every FIB table / VRF.

Parameters

count (int) – Number of FIB tables / VRFs to be created.
start (int) – Starting number of the FIB table / VRF ID. (Default value = 1)

create_vrf_by_id_and_assign_interfaces(set_id, vrf_id=4294967295)¶

Create a FIB table / VRF by vrf_id, put 3 pg-ip6 interfaces to FIB table / VRF.

Parameters: vrf_id (int) – Required table ID / VRF ID. (Default value = 0xffffffff, ID will be selected automatically)

reset_vrf_and_remove_from_vrf_list(vrf_id, if_set_id=None)¶

Reset required FIB table / VRF and remove it from VRF list.

Parameters: vrf_id (int) – The FIB table / VRF ID to be reset.

run_crosswise_vrf_test()¶

Create packet streams for every pg-ip6 interface in VRF towards all pg-ip6 interfaces in other VRFs, send all prepared packet streams and verify that:

no packet received on all configured pg-ip6 interfaces

Raises: RuntimeError – If any packet is captured on any pg-ip6 interface.

run_verify_test()¶

Create packet streams for all configured pg interfaces, send all prepared packet streams and verify that:

all packets received correctly on all pg-ip6 interfaces assigned to VRFs
no packet received on all pg-ip6 interfaces not assigned to VRFs

Raises: RuntimeError – If no packet captured on pg-ip6 interface assigned to VRF or if any packet is captured on pg-ip6 interface not assigned to VRF.

setUp()¶: Clear trace and packet infos before running each test.

classmethod setUpClass()¶: Perform standard class setup (defined by class method setUpClass in class VppTestCase) before running the test case, set test case related variables and configure VPP.

show_commands_at_teardown()¶: Allow subclass specific teardown logging additions.

tearDown()¶: Show various debug prints after each test.

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

test_ip6_vrf_01()¶: IP6 VRF Multi-instance test 1 - create 4 VRFs

test_ip6_vrf_02()¶: IP6 VRF Multi-instance test 2 - reset 2 VRFs

test_ip6_vrf_03()¶: IP6 VRF Multi-instance 3 - add 2 VRFs

test_ip6_vrf_04()¶: IP6 VRF Multi-instance test 4 - reset 4 VRFs

test_ip6_vrf_05()¶: IP6 VRF Multi-instance test 5 - auto allocate vrf id

verify_capture(pg_if, capture)¶

Verify captured input packet stream for defined interface.

Parameters

pg_if (object) – Interface to verify captured packet stream for.
capture (list) – Captured packet stream.

verify_vrf(vrf_id, if_set_id=None)¶

Check if the FIB table / VRF ID is configured.

Parameters: vrf_id (int) – The FIB table / VRF ID to be verified.
Returns: 1 if the FIB table / VRF ID is configured, otherwise return 0.

test_ip6_vrf_multi_instance.is_ipv6_misc_ext(p)¶: Is packet one of uninteresting IPv6 broadcasts (extended to filter out ICMPv6 Neighbor Discovery - Neighbor Advertisement packets too)?