8
In addition, the ProVision ASIC has built in processes
that include end-to-end data checking, embedded
RAM error correction, and ECC on an external DRAM.
These processes enable the integrity of traffic as it
passes through the switch, protecting traffic from
environmental elements.
Investment protection—The ProVision ASIC confers
investment protection through a programmable network
processor feature that allows some future requirements
to be accommodated. The network processor is based
on patented technology from HP. New algorithms can
be programmed into the ASIC to support new traffic
classifications by inspecting deep into the data packets;
this enables the HP switches based on ProVision ASIC
to support applications and policy rules that do not
yet exist.
Higher reliability and lower TCO—The ProVision ASIC
integrates with components that are normally found
on separate chips, such as the embedded processor,
memory (for example, TCAM, input), packet classifier,
MAC, and network processor. Because it is so highly
integrated, the ProVision ASIC leads to a reduced
number of components needed throughout the switch,
which translates into increased reliability, lower power
consumption, and lower TCO. It also means higher port
density due to the smaller, overall form factor.
Choice and scalability
The network applications are not homogeneous—and
with their choice of 10/100, 10GbE, Gigabit, PoE, and
PoE+ ports, the 5400 and 3500 Switch Series provide
outstanding flexibility to right-size your network to
support diverse applications and use models.
High availability is critical to enable customers to
support uptime imperatives for their business while
allowing them to reliably and seamlessly scale their
network over time. The HP 5400 and 3500 Switch
Series provide a wide range of platform
high-availability features to meet these needs:
•Virtual Router Redundancy Protocol (VRRP),
which allows groups of two routers to dynamically
back each other up to create highly available
routed environments
•HP Switch Meshing, which dynamically load
balances across multiple active redundant links in a
Layer 2 environment to increase available aggregate
bandwidth
•Distributed trunking, which allows a switch or server
to connect to two upstream switches with one logical
trunk—increases resiliency and enables load sharing
in enterprise networks and data centers
(12 paginas)
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