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Solaris Network Connectivity Troubleshooting and Data Gathering (Doc ID 1264150.1)

Last updated on OCTOBER 14, 2019

Applies to:

Solaris Operating System - Version 10 3/05 and later
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)

Purpose

This document will discuss

1.) Requirements, recommendations and methods to troubleshoot and correct Ethernet network connectivity problems

2.) Requirements, recommendations and methods to collect data when opening an SR for Oracle Solaris support staff.

The following scenarios are covered:

Troubleshooting Steps

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In this Document
Purpose
Troubleshooting Steps
 1. PROBLEM: Interface reporting repeated "link up/link down" errors in /var/adm/messages, NOT due to any system or network administrative activity.
 POSSIBLE CAUSES and CORRECTIVE ACTIONS:
 DATA COLLECTION:
 2. PROBLEM: No connectivity inbound or outbound (on same subnet, otherwise a possible routing/subnetting problem**)
 POSSIBLE CAUSES and CORRECTIVE ACTIONS:
 DATA COLLECTION:
 3. PROBLEM: This host can't ping another host (outbound communication on same subnet, otherwise a possible routing and/or subnetting problem**)
 POSSIBLE CAUSES and CORRECTIVE ACTIONS:
 DATA COLLECTION:
 4. PROBLEM: Another host can't ping this host (inbound communication on same subnet, otherwise a possible routing and/or subnetting problem**)
 POSSIBLE CAUSES and CORRECTIVE ACTIONS:
 DATA COLLECTION:
 **CONNECTIVITY BETWEEN INTERFACES ON DIFFERENT IP NETWORKS (SUBNETS)
 Q. How to tell if interfaces are on the same subnet?
 A. Compare the "broadcast" address.
 ADDITIONAL POSSIBLE CAUSES AND CORRECTIVE ACTIONS:
References

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