How to Analyze Problems When Trying to Configure Solaris IP Multipathing (IPMP) (Doc ID 1020085.1)

Last updated on SEPTEMBER 29, 2020

Applies to:

Purpose

This document describes which troubleshooting steps to take when trying to resolve problems related to configuring IPMP.

Symptoms: 
mpathd error messages in /var/adm/messages:
"No test address configured on interface disabling probe-based failure detection on it"
"Test address address is not unique; disabling probe based failure detection on "
"The link has gone down on "
"Successfully failed over from NIC to NIC
"NIC repair detected on "
"Successfully failed back to NIC " "The link has come up on "

* interfaces configured for IPMP missing the "UP" and/or "RUNNING" flag in the ifconfig -a output

* interfaces configured for IPMP showing as "FAILED" in "ifconfig -a" output

Purpose/Scope:

If you need assistance on problems related to IPMP/in.mpathd errors, please refer to: Analyzing errors for IP Multipathing (IPMP) configurations <Document 1020155.1>

If you need assistance on problems related to interfaces in "FAILED" status in an IPMP group, please refer to: "Analyzing problems with network interfaces showing "FAILED" in ifconfig -a output" <Document 1020233.1>

If you need assistance on problems related to interfaces in an IPMP group not failing over, please refer to: "Network interface does not fail over in a IPMP configuration" <Document 1019110.1>

Available Documentation:in.mpathd(1M)The official Sun[TM] IP Multipathing documentation is found on http://www.oracle.com/technetwork/indexes/documentation/index.html

As of this writing, the most current documentation relating to using IPMP is in the "System Administration Guide: IP Services"

Other related information (man pages):
dladm(1M)
ifconfig(1M)
kstat(1M)
ndd(1M)
netstat(1M)
ps(1M)
grep(1)
snoop(1m)
tail(1)
pgrep,pkill(1)

blogs.sun.com entries:

http://blogs.oracle.com/sunay/entry/solaris_networking_the_magic_revealed 

GLDv3 implementation in Solaris 10 

IP/IPMP in the Solaris 10 network enviroment

Troubleshooting Steps