Cisco WS-C4506 - Syst. Catalyst 4500 Switch Manual de usuario Pagina 57

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BRKARC-3445
57
System High Availability
Cisco Catalyst 4507R-E and 4510R-E
support the use of redundant
supervisors
Dedicated supervisor slots
Supervisor hardware redundancy will
leverage three software mechanisms
to improve network resiliency and
provide for enhanced operational
change processes
SSO—Stateful Switchover
NSFNon-Stop Forwarding
ISSU—In-Service Software
Upgrade
Stateful Switchover (SSO)
L2 and L4 Protocols
Non-Stop Forwarding
(NSF) L3
In-Service Software
Upgrades (ISSU)
Redundant Supervisors
Redundant SupervisorsSSO, NSF, and ISSU
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