2 research outputs found
Enhancement of LivCloud for live cloud migration
Virtualization techniques aim at handling the growing demand for computing, storage and communication resources
in cloud computing. However, cloud providers often offer their
own proprietary virtualization platforms. As a result, cloud
users’ VMs are tightly coupled to providers’ IaaS, hindering
live migration of VMs to different providers. A number of live
cloud migration approaches have been proposed to solve this
coupling issue. Our approach, named LivCloud, is among those
approaches. It is designed over two stages, basic design stage
and the enhancement stage. The implementation of the basic
design has been introduced and evaluated on Amazon EC2 and
Packet bare metal cloud. This paper discusses the implementation
of the second stage, the enhancement of the basic design on
Packet. In particular, it illustrates how LivCloud is implemented
in two different scenarios. The first scenario deploys KVM
bridge networking, OpenvSwitch and C scripts used to meet the
network configuration changes during the VMs relocating. This
scenario achieves better downtime of one second compared to the
basic design of LivCloud. The second scenario uses OpenVPN,
OpenDayLight (ODL) and Cisco OpenFlow Manager (OFM) to
successfully live migrate VMs back and forth between LivCloud
and Packet. This scenario achieves better downtime between
400 and 600 milliseconds. As part of the discussion, the paper
proposes a third potential scenario to successfully meet the live
cloud migration requirements. This scenario aims to eliminate
any downtime occurred in the first two scenarios by utilizing
the Open Overlay Router (OOR), Locator Identifier Separator
Protocol (LISP) and ODL