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NBase Communications
NH 210
Features
Standards
Complies with IEEE 802.3 and IEEE 802.3ustandards
Functionality
8 switched 10Base-T Ethernet ports and two
built-in
high-speed ports
VLAN
Up to four VLAN groups can be configured to protect
against multicast and broadcast storms (NH 210-2K)
Security
Per/port intrusion control capabilities
Cost-effective
Switching performance at hub prices
ASIC Technology
Enables wire-speed switching between the 10Mbps and
100Mbps ports
Management
Windows 95™ -based management by
MegaView
Diagnostics
Diagnostic LEDs on each port for easy installation and
maintenance
Theory of Operation
Ethernet segment switches divide a large unwieldy local network into smaller
segments, insulating each from the other’s local traffic and increasing aggre-
gate bandwidth, while still retaining full connectivity. The NH 210 is designed
to be self-configuring and extremely fast, making installation simple and pro-
viding an increase in available bandwidth.
The switch learns on which port stations are located by remembering the
source address of every packet received on every port. When packets are
received for stations that the switch has learned, they will be forwarded to
only the port that the station is on. This is in contrast to a hub which sends
every packet to every port.
If the switch receives a packet addressed to a station which the switch has not
learned, the packet is sent to every port, except the port on which it was
received, just as a hub would. This insures that full connectivity is maintained.
The high port density of the NH 210 allows for dedicated, high-performance
workstation links.
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Содержание NH 210
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