EZZ8138I

Explanation
 This message is produced when an inbound unicast
IPv4 or IPv6 packet is received on a backup parallel OSPF Interface.
It is required that inbound unicast OSPF packets are received on the
primary OSPF interface. 
Receiving OSPF packets on
a backup OSPF interface can result in the following conditions:New OSPF adjacencies cannot form, which prevents OMPROUTE from
learning new routes from its neighbors.
Existing OSPF adjacencies fail with an EZZ7921I message for IPv4
adjacencies, or an EZZ7954I message for IPv6 adjacencies. This causes
OMPROUTE to lose any existing routes previously learned from its neighbors.

This scenario might occur if OMPROUTE is running
with parallel OSPF interfaces in the same subnet as another OMPROUTE
that is the designated router or backup designated router and shares
an OSA card in QDIO mode with that other OMPROUTE.  If one OMPROUTE
has the shared OSA card as the primary OSPF interface and the other
OMPROUTE has the shared OSA card as the backup OSPF interface, this
message is issued and the OSPF adjacency is not formed. 
 In
the message text: jobname
The name of the OMPROUTE instance.
ipversion
The IP version (IPv4 or IPv6).
interface
The name of the interface on which the packet was received.

System action
 OMPROUTE continues but  the inbound packet is
discarded.

Operator response
 Contact the system programmer.

System programmer response
If the problem is because
an OSA card is being shared, change the Router_Priority value to 0
on the OSPF_Interface statement in the OMPROUTE  configuration for
both systems.  This prevents OMPROUTE from becoming the designated
router or backup designated router.   If OMPROUTE  must be capable
of acting as the designated router or backup designated router, code
the Parallel_OSPF option on the OSPF_Interface statements to the same
value, either Primary or Backup, in the OMPROUTE configuration for
both systems.
If the problem persists after taking
this corrective action, collect an IP packet trace and an OMPROUTE
debug trace and contact the IBM® software
support center.

User response
 Not applicable.

Problem determination
 See the system programmer response.

Source
 z/OS® Communications
Server TCP/IP: OMPROUTE

Module
 SPF ,EZA6RSPF

Routing code
 10

Descriptor code
 12

Example
  EZZ8138I OMPROUT1 discarded  a packet that was received on backup IPV6  interface QDIO6201