[3.0.3.1-3~liberty] DPDK: Generic Link Local Service Is Failing on DPDK Setup

[chhandak]

Description:
Linklocal service is failing with DPDK. Test case test_generic_link_local_service is failing in sanity. Same is passing with Kernel vrouter on same build.

Details
---------

1. Configured following link local service

"linklocal_services": {
            "linklocal_service_entry": [
                {
                    "ip_fabric_DNS_service_name": "",
                    "ip_fabric_service_ip": [
                        "192.16.7.60">>>>>>>>>>>>>>>>Contrail Internal VIP
                    ],
                    "ip_fabric_service_port": 8775,
                    "linklocal_service_ip": "169.254.169.254",
                    "linklocal_service_name": "metadata",
                    "linklocal_service_port": 80
                },
                {
                    "ip_fabric_DNS_service_name": "a5b7s13-test",
                    "ip_fabric_service_ip": [],
                    "ip_fabric_service_port": 8084,
                    "linklocal_service_ip": "169.254.1.2",
                    "linklocal_service_name": "cfgmintrospect",
                    "linklocal_service_port": 8084
                }
            ]
        },

2. Then script is trying to execute wget http://169.254.1.2:8084 which is failing.

3. Flow output
Action:F=Forward, D=Drop N=NAT(S=SNAT, D=DNAT, Ps=SPAT, Pd=DPAT, L=Link Local Port)
 Other:K(nh)=Key_Nexthop, S(nh)=RPF_Nexthop
 Flags:E=Evicted, Ec=Evict Candidate, N=New Flow, M=Modified Dm=Delete Marked
TCP(r=reverse):S=SYN, F=FIN, R=RST, C=HalfClose, E=Established, D=Dead

    Index Source:Port/Destination:Port Proto(V)
-----------------------------------------------------------------------------------
    15912<=>116780 11.1.1.3:22 6 (2->0)
                         11.1.1.2:43289
(Gen: 1, K(nh):27, Action:N(SD), Flags:, TCP:SSrEEr, S(nh):27, Stats:24/4391, SPort 52577)

    30916<=>504368 10.87.121.54:8084 6 (0->2)
                         192.16.7.6:38297
(Gen: 1, K(nh):5, Action:N(SDPdL), Flags:, TCP:Sr, S(nh):10, Stats:0/0, SPort 62276)

    40224<=>449804 10.87.121.54:8084 6 (0->2)
                         192.16.7.6:52282
(Gen: 1, K(nh):5, Action:N(SDPdL), Flags:, TCP:Sr, S(nh):10, Stats:0/0, SPort 65098)

    44936<=>217440 11.1.1.3:51584 6 (2->0)
                         169.254.1.2:8084
(Gen: 1, K(nh):27, Action:N(SPsD), Flags:, TCP:S, S(nh):27, Stats:6/444, SPort 53059)

   116780<=>15912 192.16.7.6:43289 6 (0->2)
                         169.254.0.5:22
(Gen: 1, K(nh):5, Action:N(SD), Flags:, TCP:SSrEEr, S(nh):5, Stats:20/2921, SPort 51323)

   217440<=>44936 10.87.121.54:8084 6 (0->2)
                         192.16.7.6:34223
(Gen: 1, K(nh):5, Action:N(SDPdL), Flags:, TCP:Sr, S(nh):10, Stats:0/0, SPort 63826)

   449804<=>40224 11.1.1.3:51585 6 (2->0)
                         169.254.1.2:8084
(Gen: 1, K(nh):27, Action:N(SPsD), Flags:, TCP:S, S(nh):27, Stats:6/444, SPort 50183)

   504368<=>30916 11.1.1.3:51586 6 (2->0)
                         169.254.1.2:8084
(Gen: 1, K(nh):27, Action:N(SPsD), Flags:, TCP:S, S(nh):27, Stats:6/444, SPort 63803)

root@a5b7s16:~#

4. Same port is reachable from Agent compute node
root@a5b7s16:~# telnet 192.16.7.60 8775
Trying 192.16.7.60...
Connected to 192.16.7.60.

[Vinod Nair (vinodnair)]

Adding the Link local service manually works fine
{

    linklocal_service_name: TST1
    ip_fabric_service_ip: [
        13.1.0.10
    ]
    linklocal_service_ip: 169.254.169.250
    ip_fabric_service_port: 8082
    ip_fabric_DNS_service_name:
    linklocal_service_port: 90
    lls_fab_address_ip: IP

}

[Kiran (kiran-kn80)]

Chhandak will re-check in the next run.

[Jeba Paulaiyan (jebap)]

This passed in 3.1.1.0-42 Mitaka Sanity run.