Symptom: An AppleTalk Enhanced IGRP router is stuck in Active mode. The router repeatedly sends error messages similar to the following to the console:
%DUAL-3-SIA: Route 2.24 Stuck-in-Active
Note Occasional messages of this type are not a cause for concern. This is how an Enhanced IGRP router recovers if it does not receive replies to its queries from all its neighbors. However, if these error messages occur frequently, you should investigate the problem.
For a more detailed explanation of Enhanced IGRP Active mode, see the section "Enhanced IGRP Active/Passive Modes" later in this chapter.
Table 9-15 outlines the problems that might cause this symptom and describes solutions to those problems.
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