Page 1 of 12 • Data Sheet
• High performance, high
density
— 160 Gbps of stacking
bandwidth; 160 Gbps
switch fabric with 40
Gbps per switch dedicated
to stacking
— Up to 360 gigabit ports
or 384 10/100 ports with
32 gigabit uplinks in a
single stack
• High-availability services
— IEEE 802.3ad Link
Aggregation
— Closed Loop Stacking
— Optional redundant
power
— Redundant stack
management
• Advanced Quality of Service
— Extensive traffic classifi-
cation capabilities
— Ingress rate limiting
— Weighted Round Robin
Queuing
— Extensive VLAN support
• Sophisticated Security
— IEEE 802.1x
Authentication
— SSH and RADIUS
— Optional policy license
upgrade available for full
Secure Networks support
SecureStack B2 Switch Family
• H i g h - d e n s i t y, high-availability stackable 10/100 or 10/100/1000 switching
• Option to deliver Secure Networks to the stackable edge
• Extensive QoS support for VoIP and real-time broadcast/multicast
• Power over Ethernet available
• Complete stack management via NetSight
®
, web or CLI
Advanced Layer 2+ Switching in a
High-Density Stackable
The SecureStack B2 switch family delivers
advanced Layer 2+ switching in a single
stack with up to 360 gigabit ports or 384
10/100 ports with 32 gigabit uplinks.
Reliability and availability is assured
with support for Closed Loop Stacking,
redundant uplink connections, redundant
power options and redundant stack man-
agement. An optional policy license will be
made available approximately six months
after initial shipments that will allow
SecureStack B2 switches to enforce security
at the network edge.
High-Performance and
High-Availability Stacking
SecureStack B2 switches incorporate
integrated stacking ports that support up
to 20 Gbps of bi-directional bandwidth
between any two adjacent switches for a
total of 160 Gbps of stacking bandwidth.
No additional stack module is required to
stack the switches. Each switch has a 160
Gbps switch fabric with 40 Gbps per switch
dedicated to stacking. In an eight switch
stack, 320 Gbps of switching bandwidth
is dedicated to stacking. A single stack can
be comprised of any combination of
SecureStack B2 switches allowing a mixture
of high-density 10/100, 10/100/1000 and/or
Power-over-Ethernet ports to be linked to
the network core via copper, multimode
fiber and/or single-mode fiber Gigabit.
Closed Loop Stacking can be implemented,
which assures that a single switch or cable
connection failure in the stack will not impact
the overall stack operation. Stack switch
units can be added to or removed from the
stack with minimal packet interruption.
Up to eight SecureStack B2 switches can be
supported in a stack with a single IP
address for complete stack management.
Redundant stack management is supported
by assigning a primary and secondary stack
manager.
Switching Services
All SecureStack B2 switches support stan-
dards-based switching. The IEEE s t a n-
dards for switching (IEEE 802.1D MAC
Bridges) and IEEE 802.1t (802.1D
Maintenance), as well as Multiple Spanning
Trees (IEEE 802.1s) and Rapid Recon-
vergence (IEEE 802.1w), are fully supported.
All switches support up to 8,000 addresses
and have eight hardware queues per port.
Ethernet Flow Control (IEEE 802.3x) as
well as standards-based Link Aggregation
(IEEE 802.3ad) are fully supported in
every switch model. In addition, all switches
support Jumbo Frames (frames up to 9,216
bytes) and IGMP Snooping v1 and v2.
Extensive Traffic Classification
SecureStack B2 switches comprise the
ideal family of switches for delivering any
converged network solution. A major com-
ponent for supporting converged networks is
traffic classification. All SecureStack B2
switches deliver extensive Layer 2/3/4
packet classification and marking at the
edge based on any of the following:
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