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Used Cisco Catalyst 6500 Virtual Switching System 1440
Part # VSS1440
Product
Description: This VSS network system virtualization
technology pools multiple Cisco Catalyst 6500 Series Switches
into one virtual switch. It increases operational efficiency and
boosts nonstop communications while it scales the system
bandwidth capacity to 1.4 Tbps. At the initial phase, a VSS will
allow two physical Cisco Catalyst 6500 Series Switches to
operate as a single logical virtual switch called a virtual
switching system 1440 (VSS1440).
VSS1440 is formed by two Cisco
Catalyst 6500 Series Switches with the Virtual Switching
Supervisor 720-10GE. The 10 Gigabit Ethernet uplinks on the
Virtual Switching Supervisor 720-10G or any port on the
WS-X6708-10G module. VSSs supports all Cisco Catalyst 6500
Series Switches 6700 Series modules in centralized or
distributed (using DFC3C or DFC3CXL) forwarding mode.
In a VSS, the data plane and switch fabric
with capacity of 720 Gbps of supervisor engine in each chassis
are active at the same time on both chassis, combining for an
active 1400-Gbps switching capacity per VSS. Only one of the
virtual switch members has the active control plane. Both
chassis are kept in sync with the interchassis Stateful
Switchover (SSO) mechanism along with Nonstop Forwarding (NSF)
to provide nonstop communication even in the event of failure of
one of the member supervisor engines or chassis.




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