Product manual
AX Series Network Partition: Solution Guide [Basic] Second Edition
© 2009-2010 ALAXALA Networks Corporation. All rights reserved.
5
1. Introduction to Network Partition
1.1 Virtualization of networks
System virtualization is a technology for separating or integrating system resources regardless of their physical
configuration. Virtualization has advantages in cost and operation due to its small physical resource requirements
compared to the assumed system size.
There are several network virtualization technologies already available, including MPLS-VPN. Unfortunately,
these existing technologies are generally designed for large-scale systems or require expensive and
high-performance devices, and thus are difficult to introduce into enterprise systems from both budgetary and
technological standpoints. Currently, opportunities for adopting these technologies are limited.
ALAXALA Networks provides a new solution to these problems: network partitions.
Figure 1.1-1 Network partition: A simple network virtualization
Network partition uses a combination of VRF (Virtual/VPN Routing and Forwarding) technology that logically
separates Layer 3 functionality and VLAN technology that establishes Layer 2 logical networks. This
combination allows the creation of multiple logical networks with a simple physical configuration.
Actual operation of network partitions requires you to know about the configuration of VRF (which is not as
complicated as MPLS-VPN) and the traditional concepts and configurations of VLANs. Required devices
include any one of the AX6700S, AX6600S, or AX6300S series switches with an option license for VRF
(OP-NPAR) as the core, and L2 switches, such as a AX2400S series or the AX1200S series one, as the
distribution or access edges. Network partition provides a solution for establishing a virtualized enterprise
network system with advantages in cost and technology.
Low-cost L2 switch
for the downstrea
m
Point 3
Partition 2 Partition 1
L2 Networ
k
Integrates VRF in
the core switch
Point 2
Independent policy
for each
p
artition
Point 1
P2
P2P2
P1 P1
P1
VLAN
VLAN
VLAN
VRF2VRF1