10.10.10.2/30                 10.10.10.1/30
   [EX4650] ge-0/0/54 -------- [SSE-X3548]


OSPF relationship stays stuck in INIT:

switch> show ospf neighbor 
Address         Interface     State       ID      Pri  Dead
10.10.10.1    et-0/0/54.0     Init     10.0.0.1    1    33

OSPF traceoptions shows the following errors:

switch# run show log ospf-log       

Oct 6 20:15:48 trace_on: Tracing to "/var/log//ospf-log" started

Oct 6 20:15:48.098373 OSPF sent Hello 10.10.10.2 -> 224.0.0.5 (et-0/0/54.0 IFL 558 area 0.0.0.0)

Oct 6 20:15:48.098390  Version 2, length 48, ID 10.0.0.1, area 0.0.0.0

Oct 6 20:15:48.098397  mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128

Oct 6 20:15:48.098408  dead_ivl 40, DR 10.10.10.2, BDR 0.0.0.0

Oct 6 20:15:48.099366 OSPF sent Hello 10.10.10.2 -> 224.0.0.5 (et-0/0/54.0 IFL 558 area 0.0.0.0)

Oct 6 20:15:48.099382  Version 2, length 48, ID 10.0.0.1, area 0.0.0.0

Oct 6 20:15:48.099388  mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128

Oct 6 20:15:48.099400  dead_ivl 40, DR 10.10.10.2, BDR 0.0.0.0

Oct 6 20:15:48.150482 ospf2_build_router_lsa ospf_clean_ext_prefix_type called

Oct 6 20:15:48.150521 OSPF built router LSA, area 0.0.0.0, link count 1

Oct 6 20:15:52.812675 OSPF rcvd Hello 10.10.10.1 -> 224.0.0.5 (et-0/0/54.0 IFL 558 area 0.0.0.0)

Oct 6 20:15:52.812698  Version 2, length 44, ID 10.0.0.2, area 0.0.0.0

Oct 6 20:15:52.812717  checksum 0x0, authtype 0

Oct 6 20:15:52.812721  mask 255.255.255.252, hello_ivl 10, opts 0x2, prio 1

Oct 6 20:15:52.812725  dead_ivl 40, DR 10.10.10.1, BDR 0.0.0.0

Oct 6 20:15:52.812734 Strict BFD: NOT SUPPORTED by neighbor 10.10.10.1 <--- This suggests that Strict-BFD was enabled on the EX however, it was not.
 

It turns out this Supermicro model SSE-X3548 cannot provision an IP address on the physical interface, so an IP has to be configured on a VLAN interface. After configuring the VLAN interface and passing that VLAN on the physical interface facing the EX, the OSPF adjacency came up as "Full" successfully.