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Product Overview
The Enterasys B5 is a scalable, high-performance Gigabit Ethernet switch that provides support 
for the bandwidth-intensive and latency-sensitive requirements of today’s demanding business 
applications. The B5 is an excellent choice for environments that require complete multi-
layer switching capabilities and support for high density 10/100/1000 Ethernet ports, cost 
effective10GE uplinks, dual IPv4/IPv6 management, basic routing and policy-based automation 
capabilities for advanced edge deployments.
The B5 incorporates the new 802.3at high-power PoE on all ports, translating into increased 
power provisioning for power-hungry devices such as Pan/Tilt/Zoom (PTZ) IP surveillance cameras, 
IP videophones, third party 802.11n access points and virtual desktops. Built-in high-power PoE 
support is a cost effective alternative for customers in place of purchasing separate PoE midspans, 
which can take away valuable rack space, add cost and contribute more cabling to the wiring closet.
The B5 provides high port density in a 1U footprint and is environmentally friendly by design. The 
B5’s overall energy efficiency is further enhanced by a low current draw and an extreme tolerance 
for high environmental temperatures. A highly-scalable architecture and a comprehensive lifetime 
warranty ensure that a B5 network investment will sustain a secure, feature-rich and cost-effective 
network well into the future.
The B5’s highly customizable Layer 2/3/4 packet classification capabilities work together with 
the 8 hardware-based priority queues associated with each Ethernet port to support a suite of 
differentiated services with as many as 8 distinct priority levels to provide guaranteed Quality 
of Service (QoS) for critical voice and video network traffic. In conjunction with its non-blocking 
L2 switching and L3 routing architecture, the B5’s intelligent queuing mechanisms ensure that 
mission-critical applications receive prioritized access to network resources.
There is nothing more important 
than our customers.
Benefits
Business Alignment
•  Aligns network resource utilization with
business goals and priorities
•  Reliable network operation for mission-
critical applications
Operational Efficiency
•  Management automation capabilities
reduce network operational expenses
•  Automatic discovery and deployment
of VoIP services
Security
•  Ability to audit network for adherence
to compliance regulations, such as PCI
or HIPAA
•  Network resources securely allocated
according to user roles
•  Network security maintained
concurrently with user mobility
Support and Service
•  Industry-leading customer satisfaction
and first call resolution rates
•  Personalized services, including site
surveys, network design, installation,
and training
•  Comprehensive lifetime warranty,
including feature upgrades and more
Future-proofed with 802.3at
high-power PoE support
Automatic discovery and deployment
of VoIP services
High-availability stacking assures
reliable network operations
Automated management features
reduce operational costs
Investment protection via
comprehensive lifetime warranty
1.47 Tbps capacity and 809.5 Mpps
B-Series B5
Gigabit Ethernet Stackable Edge Switch
DATASHEET