The topology is simular to MSFT's testbed, in which the following is the interface information:
DUT Portchannel0 Fanout switch
Ethernet0 ----------- Interface 3
Ethernet4 ----------- Interface 4
.... (skip)
root@sonic:/home/admin# show ver
SONiC Software Version: SONiC.SONiC-Ingrasys-20170907-116ba4b
Distribution: Debian 8.9
Kernel: 3.16.0-4-amd64
Build commit: 116ba4b
Build date: Thu Sep 7 17:02:06 UTC 2017
Built by: sonic@debian
Docker images:
REPOSITORY TAG IMAGE ID SIZE
docker-syncd-brcm latest ef4f137855e2 318.5 MB
docker-orchagent-brcm latest 8a50662f894d 258.5 MB
docker-lldp-sv2 latest 9c3be667f967 256.7 MB
docker-dhcp-relay latest a63a2e7d63d0 253.6 MB
docker-database latest 81b09d914a1d 251.8 MB
docker-snmp-sv2 latest 132ed59ee781 291.4 MB
docker-teamd latest 2063afbf01b6 255.5 MB
docker-platform-monitor latest 3a9763be5e0c 271.1 MB
docker-fpm-quagga latest e653769681bb 262.1 MB
root@sonic:/home/admin# show platform sum
Platform: x86_64-ingrasys_s9100-r0
HwSKU: INGRASYS-S9100-C32
ASIC: broadcom
...
Sep 1 03:16:40.0 sonic NOTICE orchagent: :- addNeighbor: Created neighbor 52:54:00:8e:56:47 on Ethernet124
Sep 1 03:16:40.0 sonic NOTICE orchagent: :- addNextHop: Created next hop fc00::7e on Ethernet124
Sep 1 03:16:42.0 sonic NOTICE orchagent: :- addNeighbor: Created neighbor 52:54:00:79:a8:6d on Ethernet64
Sep 1 03:16:42.0 sonic NOTICE orchagent: :- addNextHop: Created next hop fc00::42 on Ethernet64
Sep 1 03:16:42.0 sonic NOTICE orchagent: :- addNeighbor: Created neighbor 52:54:00:aa:7a:e8 on Ethernet92
Sep 1 03:16:42.0 sonic NOTICE orchagent: :- addNextHop: Created next hop fc00::5e on Ethernet92
Sep 1 03:16:42.0 sonic NOTICE orchagent: :- addNeighbor: Created neighbor 52:54:00:a7:5a:e6 on Ethernet108
Sep 1 03:16:42.0 sonic NOTICE orchagent: :- addNextHop: Created next hop fc00::6e on Ethernet108
Sep 1 03:16:44.0 sonic NOTICE orchagent: :- addNeighbor: Created neighbor 52:54:00:83:0e:1e on Ethernet120
Sep 1 03:16:44.0 sonic NOTICE orchagent: :- addNextHop: Created next hop fc00::7a on Ethernet120
Sep 1 03:16:46.0 sonic NOTICE orchagent: :- addNeighbor: Created neighbor 52:54:00:dd:85:74 on Ethernet80
Sep 1 03:16:46.0 sonic NOTICE orchagent: :- addNextHop: Created next hop fc00::52 on Ethernet80
Sep 1 03:16:54.0 sonic NOTICE orchagent: :- on_port_state_change: Get port state change notification id:100000000001f status:2
Sep 1 03:16:54.0 sonic NOTICE orchagent: :- setHostIntfsOperStatus: Set operation status DOWN to host interface Ethernet64
Sep 1 03:16:54.0 sonic NOTICE orchagent: :- doPortTask: Set port Ethernet64 admin status to up
Sep 1 03:16:54.0 sonic NOTICE orchagent: :- doPortTask: Set port Ethernet64 MTU to 9216
Sep 1 03:16:59.0 sonic NOTICE orchagent: :- on_port_state_change: Get port state change notification id:100000000001f status:1
Sep 1 03:16:59.0 sonic NOTICE orchagent: :- setHostIntfsOperStatus: Set operation status UP to host interface Ethernet64
Sep 1 03:16:59.0 sonic NOTICE orchagent: :- doPortTask: Set port Ethernet64 admin status to up
Sep 1 03:16:59.0 sonic NOTICE orchagent: :- doPortTask: Set port Ethernet64 MTU to 9216
Sep 1 03:25:41.0 sonic NOTICE orchagent: :- on_port_state_change: Get port state change notification id:1000000000019 status:2
Sep 1 03:25:41.0 sonic NOTICE orchagent: :- setHostIntfsOperStatus: Set operation status DOWN to host interface Ethernet0
Sep 1 03:25:41.0 sonic NOTICE orchagent: :- doPortTask: Set port Ethernet0 admin status to up
Sep 1 03:25:41.0 sonic NOTICE orchagent: :- doPortTask: Set port Ethernet0 MTU to 9216
Sep 1 03:25:41.0 sonic NOTICE orchagent: :- removeLagMember: Remove member Ethernet0 from LAG PortChannel0 lid:2000000000588 lmid:1a00000000058a
Sep 1 03:25:42.0 sonic NOTICE orchagent: :- addNextHopGroup: Create next hop group nhgid:50000000005ed nh:10.0.0.5,10.0.0.9,10.0.0.13,10.0.0.17,10.0.0.21,10.0.0.25,10.0.0.29
Sep 1 03:25:44.0 sonic NOTICE orchagent: :- addNextHopGroup: Create next hop group nhgid:50000000005ee nh:fc00::a,fc00::12,fc00::1a,fc00::22,fc00::2a,fc00::32,fc00::3a
Sep 1 03:25:47.0 sonic ERR orchagent: :- meta_generic_validation_remove: object 0x50000000005d8 reference count is 1, can't remove
Sep 1 03:25:47.0 sonic ERR orchagent: :- removeNextHopGroup: Failed to remove next hop group nhgid:50000000005d8
Sep 1 03:25:51.0 sonic NOTICE orchagent: :- removeNeighbor: Removed next hop fc00::2 on PortChannel0
Sep 1 03:25:51.0 sonic NOTICE orchagent: :- removeNeighbor: Removed neighbor 52:54:00:d2:8f:2f on PortChannel0
Sep 1 03:25:56.0 sonic ERR syncd: brcm_sai_remove_next_hop:373 L3 egress destroy failed with error Operation still running (0xfffffff6).
Sep 1 03:25:56.0 sonic ERR syncd: :- processEvent: failed to execute api: remove, key: SAI_OBJECT_TYPE_NEXT_HOP:oid:0x40000000005b4, status: SAI_STATUS_OBJECT_IN_USE
Sep 1 03:25:56.0 sonic NOTICE orchagent: :- handle_switch_shutdown_request: switch shutdown request
Sep 1 03:25:56.0 sonic ERR orchagent: :- on_switch_shutdown_request: Syncd stopped
Sep 1 03:25:56.0 sonic INFO supervisord: orchagent terminate called without an active exception
Sep 1 03:25:56.0 sonic NOTICE syncd: :- exit_and_notify: sending switch_shutdown_request notification to OA
Sep 1 03:25:56.0 sonic NOTICE syncd: :- exit_and_notify: notification send successfull
Sep 1 03:25:56.0 sonic WARNING syncd: :- exit_and_notify: sleep forever to keep data plane active
Sep 1 03:25:57.489931 sonic INFO swss.sh[1873]: 2017-09-01 03:25:57,489 INFO exited: orchagent (terminated by SIGABRT (core dumped); not expected)