Server: Virtio-net and Istio
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Virtio-net failover: An introduction
Virtio-net failover is a virtualization technology that allows a virtual machine (VM) to switch from a Virtual Function I/O (VFIO) device to a virtio-net device when the VM needs to be migrated from a host to another.
On one hand, the Single Root I/O Virtualization (SR-IOV) technology allows a device like a networking card to be split into several devices (the Virtual Functions) and with the help of the VFIO technology, the kernel of the VM can directly drive these devices. This is interesting in terms of performance, because it can reach the same level as a bare metal system. In this case, the cost of the performance is that a VFIO device cannot be migrated.
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Istio / Announcing Istio 1.13.6
This release contains bug fixes to improve robustness. This release note describes what’s different between Istio 1.13.5 and 1.13.6.
FYI, Go 1.18.4 has been released, which includes 9 security fixes. We recommend you to upgrade to this newer Go version if you are using Go locally.
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Istio / Announcing Istio 1.14.2
This release contains bug fixes to improve robustness and some additional support. This release note describes what’s different between Istio 1.14.1 and Istio 1.14.2.
FYI, Go 1.18.4 has been released, which includes 9 security fixes. We recommend you to upgrade to this newer Go version if you are using Go locally.