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Transfer IP addresses seamlessly in IBM i from one Ethernet Line description to another line description without interruption
It is currently not possible in IBM i to transfer an IP address from one Ethernet line description to another without interruption. The IP address must be stopped, deleted and recreated with the reference to the new Ethernet line description. If the default gateway is affected, it must also be deleted and recreated. Downtime cannot be avoided in the IBM i OS. In AIX, however, this is possible without downtime. The AIX command is for example: "ifconfig en0 10.111.10.20 transfer en1". https://www.ibm.com/support/knowledgecenter/ssw_aix_72/i_commands/ifconfig.html
This functionality should also be available in IBM i.
The customer operates his business critical IBM Power 980 24x7 with IBM i and AIX LPARs. The network interfaces should be switched from VIOS-SEA to vNIC without interruption during ongoing operation. The active IP address can be transferred seamlessly to the new vNIC Ethernet line descprition. No business critical downtime is needed.
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