Only One of the Multiple NICs Configured in the Same Subnet Works on Unbreakable Enterprise Kernel
(Doc ID 1252266.1)
Last updated on FEBRUARY 20, 2019
Applies to:Linux OS - Version Oracle Linux 5.5 and later
Oracle Cloud Infrastructure - Version N/A and later
When setting up iSCSI multipathing with DELL EqualLogic storage, it is required to have 2 network interface cards (NIC) going through different switches to reach the same storage where both NICs are configured in the same subnet.
After installing the Unbreakable Enterprise Kernel (2.6.32-100.0.19 or later) the network is limited to go through only one NIC.
With the Red Hat compatible kernel (2.6.18* on Oracle Linux 5), the network traffic can go out through both NICs.
Installed and booted with Unbreakable Enterprise Kernel.
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