Network Intelligence—from the Core to the Edge
Whatever the size of the network, intelligent services can ease the strain of migration and expansion. By delivering Layer 2– 4 services
across the entire network, from the core to the edge, Cisco Catalyst switches provide the advanced quality of service, enhanced security,
and high availability evolving networks require. All Cisco Catalyst network platforms run on Cisco IOS
and a solid foundation for building Internet applications.
Medium-Sized Network
M
Security
Small-Business Network
QoS
High Availability
Si
Si
Si
QoS
IP
Internet VPN
High Availability
Security
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Internet VPN
PSTN Network
Quality of Service
QoS features ensure critical applications receive the bandwidth they
need by differentiating and prioritizing traffic, so time-sensitive
packets like voice and video are handled accordingly. With Cisco
Catalyst switches, QoS can be extended to the network edge,
minimizing both upstream and downstream congestion. This also
makes it easy to set policies on a per-user basis and frees up
router processing power.
Enhanced Security
The need for security increases as services and devices are added
to the network. Safeguards must be taken to ensure only authorized
users can gain access to the network, to restrict access to sensitive
network areas, and to prevent data and voice traffic from traveling
to the wrong PC or IP phone. Cisco Catalyst switches support
multiple layers of security for end-to-end protection of network
controls and resources.
High Availability
The Cisco Catalyst family also increases network uptime—and
employee productivity—through a unique combination of features
designed to ensure maximum availability. Capabilities include
high-performance IP routing, Layer 2 and Layer 3 load balancing,
bandwidth aggregation technology, multicast management via
Internet Group Management Protocol (IGMP) snooping and
Protocol Independent Multicast (PIM), and Cisco Spanning-Tree
Protocol enhancements such as BackboneFast, UplinkFast,
PortFast, and CrossStack UplinkFast.
Software, creating a unified network
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