Nortel Ethernet Switch 425-24T + UK&IRE Power Cord AL2012C41-E5 用户手册

产品代码
AL2012C41-E5
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Nortel Ethernet Switch 425 switches are
stackable 10/100 Mbps Layer 2 Ethernet
switches featuring easy configuration and
stackability, flexible choices for high-speed
uplinks, and Web-based management
using a Web browser. The Ethernet
Switch 425 products have been archi-
tected to support DiffServ classification
for advanced Quality of Service (QoS). 
Combining high port density with low
per-port pricing for a cost-effective
switching solution, the Ethernet Switch
425 family is designed for small to
medium-sized enterprises and branch
offices that consider price to be a
predominant decision factor when
acquiring advanced networking func-
tionality such as:
> High-density, cost-effective stackable
switching
> Flexible combo uplink port options
> Easy set-up
The Ethernet Switch 425 switches are
available in two models — the Ethernet
Switch 425-24T switch and the
Ethernet Switch 425-48T switch. The
Ethernet Switch 425-24T switch has 24
10BASE-T/100BASE-TX autosensing
ports, two flexible combo uplink ports
and built-in stacking ports. The switch
can be used either as a standalone unit
or in a stack of up to eight switches that
can be easily managed as a single unit,
to provide up to 192 10/100-Mbps
ports plus eight flexible combination
gigabit ports.
The Ethernet Switch 425-48T can also
be used as a standalone or in a stack of
up to eight switches for up to 384
10/100-Mbps ports. Advanced features
such as Distributed Multi-Link Trunking,
IGMP Snooping, VLAN Trunking and
flexible management tools help efficiently
manage the network traffic. Nortel
Ethernet Switch 425 products are ideal
stackable switching solutions for small
and medium enterprises needing perform-
ance and scalability at cost-effective prices.
Features and benefits
Wire-speed throughput
High-speed switching ASICs support
full line-rate forwarding and filtering
across all ports. The Ethernet Switch
425-24T leverages a 16-Gbps architec-
ture to deliver a peak forwarding rate of
6.6 million packets per second (Mpps)
and up to 52.8 Mpps in a full stack.
The Ethernet Switch 425-48T leverages a
32-Gbps switching architecture to deliver
a peak forwarding rate of 10.2 Mpps and
up to 81.6 Mpps in a full stack.
Auto MDI/MDI-X
The Ethernet Switch 425 products can
be connected to a hub or another switch
quickly and cost-effectively. Instead of
requiring a crossover cable for this
purpose, with the Ethernet Switch 425
you can use either a crossover or straight-
through cable. When a cable is connected
to one of the 10/100 ports on the switch,
the switch port automatically detects the
signal on the cable and configures itself.
This feature eliminates the need for an
MDI/MDI-X port; any port may be
used for connection to another hub 
or switch.
Full autosensing on every port
Every UTP port on the Ethernet Switch
425 switches is equipped with auto-
negotiation technology to automatically
detect and support the speed and mode
of a connected device. The ports deter-
mine whether a connected device is
operating at 10 Mbps or 100 Mbps and
automatically adjust to the optimal
Figure 1. Ethernet Switch 425-24T 
Figure 2. Ethernet Switch 425-48T 
Figure 3. Small/medium enterprise solution
Distributed
Multi-Link Trunking
Multi-Link
Trunking
Floor 3
Floor 2
Network
Center
Ethernet Switch 425 
Ethernet Switch 425
Ethernet Routing Switch 1612G
10/100 Mbps
connections
Servers