z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM)
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EZZ7960I

z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM)
SC27-3657-01

EZZ7960I
IPV6 OSPF INTERFACES name1 AND name2 DISCOVERED ON SAME LINK WITH DIFFERENT INSTANCE ID VALUES

Explanation

OMPROUTE determined that the two IPv6 OSPF interfaces identified by name1 and name2 are attached to the same link. This might have been determined due to the interfaces being configured to OMPROUTE with a common prefix parameter or due to OSPF protocol packets sent by one interface being received by the other interface. In addition, the two interfaces are using different instance ID values, either explicitly configured using the INSTANCE parameter of the IPV6_OSPF_INTERFACE statement or inherited from the INSTANCE parameter of the IPV6_OSPF statement.. OMPROUTE supports multiple instances, but does not keep separate link state databases by instance.

name1 and name2 are the names of the two interfaces.

System action

Both interfaces will participate in the IPv6 OSPF protocol. Each interface will communicate only with those routers on the link that are using the same instance ID value as that interface is using. However, because OMPROUTE does not keep separate link state databases by instances, OMPROUTE will include the link state information learned over one interface in the set of information sent over the other interface, thus mixing together the two sets of link state information.

Operator response

Contact the system programmer

System programmer response

If you do not intend to have these two interfaces use different instance ID values or you do not want OMPROUTE to mix the two sets of link state information, modify the OMPROUTE configuration file to configure common instance ID values for the two interfaces using the INSTANCE parameter of the IPV6_OSPF_INTERFACE statement. If you modify OMPROUTE configuration as a result of the message, stop and restart OMPROUTE for the changes to take effect.

Module

EZA6RCFG, EZA6RSPF

Procedure name

chkMulti6, inspf6, spfnetup6

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