Nortel BAYSTACK 450 24 PORT 10/100 SWITCH BROWN 仕様ガイド
BayStack 410 and 450 Switches Data Sheet
2
Figure 1: In the unlikely event
of a switch failure,
the stack integrity
is maintained: cascade
signals loop back at
point of failure.
the stack integrity
is maintained: cascade
signals loop back at
point of failure.
Table 1: Port, MDA, and Stacking Module Slot Configurations
of the BayStack 410 and 450 Switches.
Autosensing
Cascade
10BASE-T/
Stacking
100BASE-TX
MDA
Module
BayStack Switches
Ports
Slot
Slot
BayStack 450-12T
12
1
1
BayStack 450-24T
24
1
1
Baystack 410-24T
24 (10BASE-T only)
1
1
BayStack 450-12F
12 (100BASE-FX only)
1
1
optimal speed, each switched port also
automatically detects and supports
full-duplex connections to servers,
power-user endstations or other switches
as well as half-duplex connections to legacy
NICs or hubs. The BayStack 410-24T
Switch is a cost-effective, stackable switch
that supports 24 10BASE-T ports.
automatically detects and supports
full-duplex connections to servers,
power-user endstations or other switches
as well as half-duplex connections to legacy
NICs or hubs. The BayStack 410-24T
Switch is a cost-effective, stackable switch
that supports 24 10BASE-T ports.
High-Density Fiber Ports
The BayStack 450-12F Switch has twelve
100BASE-FX mini MT-RJ ports, one
MDA slot, and a cascade module slot.
Up to eight BayStack 450-12F Switches
can be stacked to achieve up to 128
100BASE-FX ports (with 4-port
100BASE-FX MDA on each switch).
The BayStack 450-12F Switch can also
be stacked with the BayStack 410-24T,
450-12T, and 450-24T Switches to
accommodate flexible networks.
100BASE-FX mini MT-RJ ports, one
MDA slot, and a cascade module slot.
Up to eight BayStack 450-12F Switches
can be stacked to achieve up to 128
100BASE-FX ports (with 4-port
100BASE-FX MDA on each switch).
The BayStack 450-12F Switch can also
be stacked with the BayStack 410-24T,
450-12T, and 450-24T Switches to
accommodate flexible networks.
Redundant Cascade
Stacking Architecture
Stacking Architecture
Unlike other stacking switches, BayStack
410 and 450 Switches are designed with
a fail-safe cascade stacking architecture
(see Figure 1). Cascade cables connect
up to 8 stacked switches into a self-healing
configuration that protects the stack’s
connectivity by looping connection
410 and 450 Switches are designed with
a fail-safe cascade stacking architecture
(see Figure 1). Cascade cables connect
up to 8 stacked switches into a self-healing
configuration that protects the stack’s
connectivity by looping connection
As described in Table 1, BayStack 450
Switches are available in 24- and 12-port
configurations, each with a Media
Dependent Adapter (MDA) slot, as well
as a cascade stacking module slot. The
BayStack 410-24T has 24 10BASE-T
ports, one MDA slot, and one cascade
stacking module slot.
Switches are available in 24- and 12-port
configurations, each with a Media
Dependent Adapter (MDA) slot, as well
as a cascade stacking module slot. The
BayStack 410-24T has 24 10BASE-T
ports, one MDA slot, and one cascade
stacking module slot.
Features and Benefits
Flexible High-Speed
Uplink Options
Uplink Options
100BASE-FX and 10BASE-T/100BASE-
TX MDAs for the BayStack 410 and 450
Switches provide high-speed connections
to the network center. Specifically for the
BayStack 450 Switches, Gigabit Ethernet
and future ATM uplinks provide greater
speed connections to the backbone.
TX MDAs for the BayStack 410 and 450
Switches provide high-speed connections
to the network center. Specifically for the
BayStack 450 Switches, Gigabit Ethernet
and future ATM uplinks provide greater
speed connections to the backbone.
Full Autosensing
on Every Port
on Every Port
Every UTP port on the BayStack 450-12T
and 450-24T Switches are equipped with
autosense technology to automatically
detect and support the speed and mode of
a connected device. As well as automatically
determining whether a connected device
is operating at 10 Mbps or 100 Mbps
and automatically adjusting to the
and 450-24T Switches are equipped with
autosense technology to automatically
detect and support the speed and mode of
a connected device. As well as automatically
determining whether a connected device
is operating at 10 Mbps or 100 Mbps
and automatically adjusting to the
signals back at a point of failure. In the
unlikely event of a switch failure, all
other units in a stack remain operational
without interruption.
unlikely event of a switch failure, all
other units in a stack remain operational
without interruption.
The redundant cascade stacking
architecture is a safer, smarter alternative
to current “matrix” stacking switches,
which suffer from a single point of failure
design flaw — should the base unit fail,
all connectivity to all switches in the
stack is lost.
architecture is a safer, smarter alternative
to current “matrix” stacking switches,
which suffer from a single point of failure
design flaw — should the base unit fail,
all connectivity to all switches in the
stack is lost.
Wire-speed Throughput
2.5 Gigabit per second (Gbps) switching
fabric and custom switching ASICs
support full 802.1D-compliant MAC
Layer frame forwarding and filtering
across all ports at the peak rate of 3 million
packets per second for the BayStack 450
Switches. The non-blocking architecture
of the BayStack 410-24T Switch allows
packets to be forwarded at 1 million
packets per second.
fabric and custom switching ASICs
support full 802.1D-compliant MAC
Layer frame forwarding and filtering
across all ports at the peak rate of 3 million
packets per second for the BayStack 450
Switches. The non-blocking architecture
of the BayStack 410-24T Switch allows
packets to be forwarded at 1 million
packets per second.