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Sun Fire[TM] 12K/15K/E20K/E25K: IPMP with Dynamic Reconfiguration (DR) (Doc ID 1005025.1)

Last updated on JANUARY 18, 2022

Applies to:

Sun Fire 12K Server - Version Not Applicable and later
Sun Fire 15K Server - Version Not Applicable and later
Solaris Operating System - Version 8.0 and later
Sun Fire E20K Server - Version Not Applicable and later
Sun Fire E25K Server - Version Not Applicable and later
All Platforms

Goal

This doc assumes familiarity with IPMP (IP Multipathing) and it does not contain description on how to configure IPMP.
It only describes the procedures to remove a network interface from an IPMP multipathing group and subsequently add it back using Dynamic Reconfiguration (DR).
Dynamic Reconfiguration (IPMP RCM Module) for IPMP, works with IPMP in.mpathd(1M) daemon to failover or failback network interfaces that are part of a DR operation so that IPMP is aware of the current DR operation.
Restricted by IPMP, a network interface cannot be shared between network groups. It can not combine IPv4 and IPv6 protocols in the same multipathing group although DR with IPMP works for both IPv4 and IPv6.
The DR procedures described here is for IPMP with IPv4.
It is important to note that each network interface in the domain should have a unique MAC address. Please ensure setting local-mac-address? to true in the OpenBoot PROM. Also any network interface that has been certified to work with IPMP would be able to work under DR.
Solaris[TM] releases 8 9 and 10 have been verified to work with IPMP and DR. Below is the software and patch matrix required to run IPMP with DR properly:
 
Solaris 8
108528 Solaris Kernel Patch (in.mpathd, ip, icmp, ifconfig)
109898 ARP Patch
109900 /etc/init.d/network and /sbin/ifparse Patch
109902 in.ndpd multipathing offlining IPMP capability (Update 3)
110378 mipagent patch needed for offlining capability
111802 Introduce RCM suspend/resume (Update 6)
110839 introduce RCM IPMP module (Update 6)
Solaris 9
112233 Solaris Kernel Patch (ip)
112911 ifconfig, in.mpathd and in.routed Patch
112912 libinetcfg Patch
112854 icmp Patch
113464 IPMP Headers Patch
Solaris 10
118833 Solaris kernel patch
120011 Solaris kernel patch
141532 in.mpathd patch

Solution

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