Nortel Networks BayStack 460-24T-PWR User Manual
resiliency, with the addition of Power over
Ethernet capability. It enables enterprise
customers to power devices while maintaining connectivity to standard 10/100 Mbps
Ethernet devices such as PCs and servers.
All 24 ports of the BayStack 460 Switch
can be powered.
BoSS v3.0 (BayStack operating system
Switching Software) allows the BayStack
460 Switch to stack with other BayStack
switches. BoSS also simplifies software
upgrades with a single image for different
BayStack switches.
Part of the successful BayStack* family,
Nortel Networks BayStack 460-24T-PWR
Power over Ethernet Switch is a resilient,
secure stackable switch with Power over
Ethernet (PoE) capabilities to IEEE P802.3af
compliant devices such as IP phones, wireless access points, network cameras, security
and lighting devices, and access control
devices (badge readers)
(Figure 1). The
switch has all of the features of the BayStack
Business Policy Switch such as advanced
Quality of Service (QoS) and high-
BayStack 460-24T-PWR
Power over Ethernet Switch
Nortel Networks
Figure 1: The BayStack 460-24T-PWR
Power over Ethernet Switch
BayStack 460-24T-PWR Power
over Ethernet Switch
• Power to IP phones, wireless access points,
network cameras, security and lighting
devices, and access control devices
• Provides power to all 24 ports
• IEEE P802.3af compliant to power multiple
vendors’ equipment
• Automatically provides power to a detected
device
• Enables data and power to be transmitted
over a single cable without using power
outlets
• Flexible stacking across different BayStack
switches—a stack is managed as a single
entity with a single IP address
• Simple software upgrades with single
image for different switches
• Network availability with QoS features
• Fail-safe stacking design assures
continuous uptime
• Resilient connectivity for minimal
network downtime
• Secure access and data traffic protection
Product Brief
High-density Power over
Ethernet switch
The BayStack 460-24T-PWR Switch has
24 10/100 Mbps autosensing ports, one
MDA (Media Dependent Adapter) slot
for uplink connectivity, and one cascade
module slot for stacking. Up to eight
switches can be stacked to achieve up to
224 10/100 ports (using 4-port 10/100
Mbps MDA per switch) that can be easily
managed as a single unit. The 2.5 Gbps
cascading bandwidth offers dedicated bandwidth between switches without sacrificing
any uplink ports. The uplink ports can be
used for connections to backbone switches
such as the Passport 8600 Switch.
Full autosensing on every port
Every UTP port on the BayStack 460
Switch is equipped with autosensing technology to automatically detect and support
the speed and mode of a connected device.
The ports determine whether a connected
device is operating at 10 Mbps or 100
Mbps, and automatically adjust to the
optimal speed. Each of the switched ports
can also automatically detect and support
full-duplex connections to servers, poweruser endstations or other switches, as well
as half-duplex connections to legacy NICs
or hubs.
IEEE P802.3af compliant
The BayStack 460-24T-PWR Switch is
IEEE P802.3af compliant. It can provide
Power over Ethernet to any IEEE P802.3af
compliant device such as IP phones, wireless access points, network cameras, security
and lighting devices, and access control
devices. The benefit of being interoperable
with standards-based equipment means
that customers are not forced to tie themselves to any one vendor, as the switch has
the flexibility to power multiple vendors’
devices. It can supply power up to 15.4
Watts per port, which meets the IEEE
P802.3af standard. This is more than
sufficient to power most devices.
Auto discovery feature
The BayStack 460-24T-PWR Switch automatically recognizes the connection of a
device and immediately sends power to it.
This automatic capability ensures fast
connectivity without manual intervention.
Dynamic power management
Each port can be configured to limit the
power delivered to a device. Each port can
also be configured for power priority
level—Low, High, and Critical. On the
switch, total available power is monitored.
In the case where all available power is fully
utilized, the switch may turn off lower priority ports and turn on higher priority ports.
Active circuit protection
The BayStack 460 Switch can automatically
disable a port if there is a short. All the other
ports on the switch will remain active and
will not be affected by the disabled port.
Plug-n-play IP telephony
switching
The BayStack 460 Switch provides simplified Web-based configurations on data and
power properties. The graphical user interfaces make it simple to set up data and
power configurations.
Convenience of a single cable
With the BayStack 460 Switch, data and
power can be transmitted over one cable
without using a power outlet. There is no
need for a separate cable connecting the
device to a power outlet.
Significant space and
cost savings
Traditionally, a mid-span patch panel
device connects to a standard Ethernet
switch and the device sends power over
standard UTP cat 5 cable; in essence, two
units are needed for Power over Ethernet
capability. In contrast, the BayStack 460
Switch integrates standard LAN switch
functionality with the power over UTP
cable capability of a mid-span patch panel
into one unit. This can result in significant
cost and space savings.
BoSS v3.0 (BayStack operating
system Switching Software)
With the release of BoSS v3.0, Nortel
Networks becomes the first vendor to offer
a single software image that can support
four different switch types: BayStack 46024T-PWR, BayStack Business Policy
Switch, BayStack 470-48T, and BayStack
2
Figure 2: In the unlikely event of a
switch failure, the stack
integrity is maintained:
cascade signals loop back
at point of failure.
Unit 8
Unit 7
Unit 6
Unit 5
Unit 4
Unit 3
Unit 2
Unit 1
Table 1: Stacking matrix
BayStack BayStack BayStack BayStack BayStack
460-24T-PWR 470-24T 470-48T Business 450
Policy Switch
BayStack 460-24T-PWR Yes Yes Yes Yes Yes
with BoSS v3.0
BayStack 470-24T Yes Yes Yes Yes Yes
with BoSS v3.0
BayStack 470-48T Yes Yes Yes Yes No
with BoSS v3.0
BayStack Business Policy Yes Yes Yes Yes Yes
Switch with BoSS v3.0
BayStack 450* Yes Yes No Yes Yes
Note: *BayStack 450 must have BayStack 450 software v4.2 or higher.
BayStack 460-24T-PWR Switch Stack
Passport 8600 Switch
BayStack 460-24T-PWR Switch Stack
Passport 8600 Switch
Interswitch Trunk
All ports active
Figure 4: Split Multi-Link Trunking (SMLT)
Figure 3: Distributed Multi-Link Trunking
across stack for higher bandwidth
and fault tolerance
Multi-Gigabit
load-balancing
and failover
protection for
uninterrupted
access to the
network center
BayStack 460-24T-PWR Switch Stack
Passport 8600 Switch Server
470-24T. BoSS simplifies network operations and provides the flexibility of stacking
different switches in the same stack.
Simplified network operations
BoSS simplifies network operations by
reducing the number of steps required for
switch software updates. With BoSS, only a
single image needs to be downloaded from
Nortel Networks Web site for four different
switch types. Loading the image to different
switches is also considerably simplified. The
image is loaded only to the base unit of the
stack which automatically loads it to other
switches in the stack. Finally, keeping track
of the version numbers is much easier as only
one version number needs to be remembered.
Flexible stacking with other
BayStack Switches
Using BoSS, the BayStack 460 Switch is
able to stack with any combination of
BayStack switches.
–BayStack 460-24T-PWR Switch can
be stacked with any combination of
BayStack 470-48T, BayStack 470-24T,
BayStack Business Policy Switch, and
BayStack 450.
Using BoSS v3.0, a maximum of eight
switches can be stacked in any valid
combination (Table 1).
It should be noted that the BayStack 470-48T
cannot be stacked with the BayStack 450.
Fail-safe stacking and resiliency
A key differentiation for the BayStack 460
Switch is its resilient stacking feature. The
BayStack 460 Switch can stack up to eight
units with a cascade stacking design, assuring continuous uptime even if a switch in
the stack should fail. A loop-back—or
redundant cascade cable—is used to seamlessly connect the entire stack to eliminate
any single point of failure (Figure 2).
Multi-Link Trunking
Multi-Link Trunking (MLT) enables
grouping of links between the BayStack
460 Switch and another switch or a server
to provide greater bandwidth with active
redundant links.
10/100 ports) or up to 8 Gbps (when used
with Gigabit uplink ports) with active
redundant links in one trunk. Up to six
trunks are supported per switch or stack.
Split Multi-Link Trunking (SMLT) eliminates single points of failure and allows
wiring closet switches, such as the BayStack
460, to have multiple active connections
to the network core. The BayStack 460
Switch’s ability to have multiple connections to a Passport 8600 network core
allows customers to double network bandwidth with no extra investment. The
Passport 8600 provides a self-healing
network which delivers the reliability and
availability required by today’s missioncritical applications. By combining the
reliability of the Passport 8600 with the
resilient trunking features of the BayStack
460 (DMLT, MLT, etc.), Nortel Networks
has created the next generation of flexible
networking solutions
(Figure 4).
With Nortel Networks unique Distributed
Multi-Link Trunking (DMLT) feature,
trunked ports can span multiple units of
the stack for fail-safe connectivity to
mission-critical servers and the network
center
(Figure 3). This can provide band-
width of up to 800 Mbps (when used with
3
Common look and feel
All BayStack switches, including the
BayStack 460 Switch, have a common
“look and feel” which reduces training
costs. This allows the switches to be
managed in a similar fashion via a broad set
of management tools. These tools include
Web, Command Line Interface (CLI),
Java™-based Device Manager (JDM),
Optivity* Network Management System
(NMS), Optivity Switch Manager (OSM),
and Optivity Policy Services (OPS).
End-to-end IP telephony
The BayStack 460 Switch provides enterprises with another option for end-to-end
deployment of IP telephony. Succession
1000, Business Communications Manager,
Meridian, and BayStack all provide the
choices that allow enterprises—from small
and medium businesses to large campus
infrastructures—to deploy the solution that
is right for them and offers the flexibility to
implement infrastructure changes at their
own pace.
Figure 5 depicts an example of a
small- to mid-sized enterprise solution with
the BayStack 460 Switch. Figure 6 shows
an example of a large enterprise solution.
MAC addresses
BayStack 460 Switches support up to
16,000 MAC addresses per switch or stack
for deployment of large-scale enterprise
networks with many attached devices and
workgroups, allowing for scalability and
cost-effectiveness.
VLAN support
Up to 256 port-based VLANs can be configured per individual switch or per stack to
extend the broadcast domain and segment
network traffic. The 256 VLANs can be
spread among port-based and MAC source
address-based VLANs (up to a maximum of
48 MAC source address-based VLANs). The
256 VLANs can be on a standalone switch or
across a stack. Protocol-based VLANs allow
switch ports to be assigned to a broadcast
domain based on the protocol information
within the packet. These VLANs can localize
broadcast traffic and assure that the specified
protocol type packets are sent only to the
protocol-based VLAN ports.
Shared VLAN (SVL) and individual VLAN
(IVL) learning is supported. With SVL
support, all VLANs in the switch share the
same forwarding database. IVL allows individual VLANs to have separate forwarding
databases within the switch, and it allows the
switch to handle duplicate MAC addresses if
the addresses are in different VLANs.
4
Figure 5: Small to medium enterprise solution
Business Communications
Manager
BayStack 460 Stack
Business Series
Terminals
Servers
Desktop
users
802.11
Wireless
LAN
i2004
Standard LAN
Power over Ethernet
Power
10/100
Mbps
Net
camera
Figure 6: Large enterprise solution
Passport 8600
BayStack 460 Stack
Succession
1000
CallPilot 2.0 Desktop
users
802.11
Wireless
LAN
i2004
Standard LAN
Power over Ethernet
Servers
Analog
Phones
Succession Media
Gateway
Power
10/100
Mbps
Distributed Multi-Link Trunking
Net
camera
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