EZZ8165I

Explanation
 OMPROUTE detected another OSPF router in the OSPF
autonomous system that is using the same router ID as OMPROUTE.  The
router ID must be a unique 32-bit number for each router in the autonomous
system.   Duplicate router IDs can prevent adjacencies from forming
between routers that are directly connected.  Duplicate router IDs
can also cause increased CPU usage for other OSPF routers and intermittent
routing failures.   Packets might be lost, which causes performance
problems, or hosts might become unreachable. 
 In the message
text:  ip_version
The version of IP that OSPF is running.
router_number
The OSPF router ID for the IP version, in dotted decimal format.

System action
 If OMPROUTE was started within the
last dead router interval, OMPROUTE ends. If OMPROUTE has been running
for longer than the dead router interval, OMPROUTE continues.

Operator response
 Contact the system programmer.

System programmer response
 If the router_number value
is not correct for OMPROUTE, verify that the correct OMPROUTE configuration
file was used when OMPROUTE was started. Ensure that the correct router
ID is configured. If the router ID is not configured in the OMPROUTE
configuration file, code an IPv6_OSPF statement for IPv6 or an OSPF
statement for IPv4 to configure the router ID. 
 See the steps for configuring OSPF and RIP (IPv4 and IPv6) in z/OS Communications Server: IP Configuration
Guide for more information about coding a router
ID for OMPROUTE.
 If the OMPROUTE configuration file uses the
INCLUDE statement, use debug level 1 to see the complete  configuration
file used by OMPROUTE.   
 If the router_number value
is correct for OMPROUTE, you must identify the duplicate router in
the network.  Use the D TCPIP,,OMPROUTE,OSPF,NBR or D TCPIP,,OMPROUTE,IPV6OSPF,NBR
command to identify the designated router. Determine which router
is advertising a duplicate router ID. 

User response
 Not applicable.

Problem determination
 Not applicable.

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

Module
 SPF, SPFLOOD, EZA6RSPF, EZA6RSPL

Routing code
 10

Descriptor code
 12

Automation
 This message is issued to the system console. The
system programmer can use automation to be notified to investigate
the router ID configuration. 

Example
  EZZ8165I DUPLICATE IPV4 OSPF ROUTER ID 10.2.3.4 DETECTED