EZZ8157I

Explanation
 This event was generated for the neighboring designated
router (specified by the neighbor value), which
exceeded the loop threshold for the number of adjacency attempts allowed
before reaching full adjacency.  This event might be caused by a problem
with remote  networking hardware.  If OMPROUTE finds a redundant parallel
interface (primary  or backup) that can reach the same neighbor in
the LAN,  OMPROUTE changes the interface state to SUSPEND and issues
message EZZ8158I to indicate that OMPROUTE will attempt to establish
an adjacency over the redundant interface.   If OMPROUTE does not
find a redundant parallel interface, OMPROUTE continues to attempt
to establish an adjacency to that neighbor over the same interface.
  See the network design considerations with z/OS® Communications Server information
in z/OS Communications Server: IP Configuration
Guide for more information about futile neighbor
state loops.
 In the message text: jobname
The name of the OMPROUTE application.
ipversion
The IP version that OSPF is running. Possible values for ipversion are:
 IPv6
OSPF for IPv6
IPv4
OSPF for IPv4

neighbor 
neighbor  is one of the following:  The interface address of the neighboring OSPF router, if the ipversion value
is IPv4.
The router ID of the neighboring OSPF router,  if the ipversion value
is IPv6. 

interface
The name of the local interface over which OMPROUTE failed to
form an adjacency with the specified neighbor.
threshold_value
The neighbor state loop threshold value for the number of adjacency
attempts with a specified neighbor.

System action
 OMPROUTE continues and tries to establish an
adjacency with the neighbor over  the same interface or over a redundant
parallel interface (primary or backup),  if one is available.

Operator response
 Contact the system programmer

System programmer response
 If connectivity problems persist,
investigate the reason that the adjacency  could not be established.
 Inspect the remote networking hardware components, such as routers,
switches, or cabling, that might contribute to the problem.

User response
 Not applicable.

Problem determination
 See the system programmer response.

Source
 z/OS Communications
Server TCP/IP: OMPROUTE

Module
 SPFNBR, EZA6RSPB

Routing code
 10

Descriptor code
 12

Automation
 This message goes to the console or syslog.

Example

 For
IPv4:  EZZ8157I OMPROUTE IPv4 OSPF detected futile neighbor state loop with  neighbor 10.1.1.2 on 
         interface OSAGBE1 after 10 adjacency attempts 

 For
IPv6:  EZZ8157I OMPROUTE IPv6 OSPF detected futile neighbor state loop with  neighbor 10.1.1.5 on 
         interface OSAGBE1 after 10 adjacency attempts  