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Introduction
This addendum introduces the ELS10-27MDU. It explains the default
configuration and provides the user with the necessary information to
manage and configure this switch. This addendum is provided in
conjunction with the ELS10-27TX User Guide, and does not repeat the
information found in that document. The user should refer to the
ELS10-27TX User Guide for basic switch installation, management and
technical information.
Product Overview
The ELS10-27MDU is a 24 port 10BASE-T switch with three Fast Ethernet
ports. It is a specially modified version of the ELS10-27TX, designed to
provide Internet access in Multiple Dwelling Units (MDUs), such as
hotels, apartment buildings, and dormitories. The ELS10-27MDU has
unique firmware, designed for product installation in MDU environments,
in which security and restriction of data traffic between user ports are the
primary considerations. This is accomplished by using the special VLAN
configuration features of the switch.
The default configuration of the ELS10-27MDU is designed to limit traffic
between the ports for purposes of security. This configuration may be
modified as needed. There are 24 10BASE-T ports (user ports), and 3 Fast
Ethernet ports (ports 25, 26 and 27). Port 27 is the uplink port, and Ports 25
and 26 are downlink ports. The downlink ports pass traffic only to an
uplink port, and similarly the uplink port passes traffic only to a downlink
port (or to the user ports on that switch) when multiple ELS10-27MDU
switches are cascaded. The uplink port at the highest level in a cascaded
configuration of switches would typically be connected to a router with a
connection to the Internet. Security is provided by restricting traffic as
follows: