| Abstract | This paper describes Trellis, a software platform for hostingmultiple virtual networks on shared commodity hardware.
Trellis allows each virtual network to define its own topol-
ogy, control protocols, and forwarding tables, which low-
ers the barrier for deploying custom services on an isolated,
reconfigurable, and programmable network, while amor-
tizing costs by sharing the physical infrastructure. Trellis
synthesizes two container-based virtualization technologies,
VServer and NetNS, as well as a new tunneling mechanism,
EGRE, into a coherent platform that enables high-speed vir-
tual networks. We describe the design and implementation,
of Trellis, including kernel-level performance optimizations,
and evaluate its supported packet-forwarding rates against
other virtualization technologies. We are in the process of
upgrading the VINI facility to use Trellis. We also plan to
release Trellis as part of MyVINI, a standalone software dis-
tribution that allows researchers and application developers
to deploy their own virtual network hosting platforms.
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