z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM)
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EZZ7968I

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

EZZ7968I
Hello interval missed on interface interface

Explanation

This message indicates that at least one interface missed hello intervals and the Dead Router Interval is approaching. A routing daemon for a complex network topology has many time-sensitive tasks. On busy systems, if these tasks exceed a certain time period (Dead Router Interval), adjacent routers will determine that OMPROUTE became inactive and drop routes.

interface is the name of the OSPF interface that missed at least two hello intervals.

System action

OMPROUTE continues.

Operator response

Verify that the interface is active on the network.

System programmer response

OMPROUTE might not be configured with the proper dispatching priority to process the dynamic routing protocol traffic for the network. If adjacent routers drop routes learned from OMPROUTE, then the dispatching priority of OMPROUTE must be increased or the Dead Router Interval lengthened.

Module

SPFTIMER, EZA6RSFT

Procedure name

spf_htim, spf_htim6

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