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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<chapter id="tor-config-req">
<title>Top of the Rack (TOR) Configuration Requirements</title>
<para>The switching infrastructure provides connectivity for the ENFV Core
infrastructure operations, tenant networks (East/West) and provider
connectivity (North/South). It also provides needed connectivity for the
Storage Area Network (SAN).</para>
<para>To avoid traffic congestion, it is strongly encouraged that 3
physically separated networks be used: 1 physical network for administration
and control, 1 physical network for tenant private and public networks, and
1 for SAN. The switching connectivity can (but does not need to) be fully
redundant, in such case it comprises a redundant 10GE switch pair for each
of the 3 networks.</para>
<para>The physical TOR switches are not automatically configured from the
Fuel ENFV reference platform. All networks involved in the ENFV Core
infrastructure as well as the provider networks and the private tenant VLANs
need to be manually configured.</para>
<para>Manual configuration of the ENFV Core 1.0 hardware platform should be
carried out according to the <ulink
url="https://wiki.opnfv.org/display/pharos/Pharos+Specification">ENFV Core
Pharos specification</ulink>.</para>
</chapter>
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