Cisco WS-C4506 - Syst. Catalyst 4500 Switch Manual de usuario Pagina 76

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© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Public
BRKARC-3445
78
Resiliency with Catalyst 4500E
Redundant supervisor
engines
Redundant power supplies
Connect to redundant
power circuits
Redundant fans
Hot-swappable line cards
with High MTBF
Generic On-Line
Diagnostics (GOLD)
Non-Stop Forwarding with
Stateful Switchover
(NSF/SSO) Rapid Supervisor
Engine Switchover Ensures
Continuous Packet
Forwarding in a
Layer 2/3 Environment
IP Calls Do Not Drop!!!
Control Plane Policing
(CoPP)—Rate Limits the
Traffic to the Supervisor
CPU Ensuring Stability,
Availability and Predictable
Network Performance
High Feature Capacity:
Concurrent Enablement of
Multiple Services Such as
QoS, Multicast, Security
without Impacting Switching or
Routing Performance
Future proof with ample
Service resources
Independent Services
resources
High performance
Supervisors
Power over Ethernet (PoE)
scalability
In Service Software Upgrade
(ISSU)—upgrade or downgrade
full IOS software image without
disrupting the network;
eliminates planned downtime
for software upgrades.
Eliminates
Planned Outages
Safeguard Against
Unplanned Outages
Hardware Redundancy
and Detection
Safeguards Against Unpredictable Outages
Hardware Redundancy
and Detection
Safeguards Against Unpredictable Outages
ISSU
Eliminates
Planned
Maintenance Outages
CoPP
Protects Against
CPU Overload
Ensures Seamless
Recovery
NSF/SSO
Prevents
Performance
Degradation
Services
at Wire
Speed
High Feature
Capacity
Delivering
Nonstop
Operations
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