Cisco Systems Intelligent Switching manuale d’uso

Cisco Catalyst ® Swit c h ing Solutions Guide Intelligent Switching for the Evolving Network 3580 IS Solutions Guide 11/19/02 2:06 PM Page 1[...]

Intelligent switc hing for the ev olving network: Easing network migration, adaptation, and expansion. Catalyst: An agent that precipitates or accelerates a reaction, development, or c hange. 3580 IS Solutions Guide 11/19/02 2:07 PM Page 2[...]

Q: Wh y start with intelligent switc hing? Q: Wh y c hange an ything? A: Because there really isn ’ t any alternative. Just as living things must adapt to changing conditions in their environments, businesses and other organizations must continually adapt their networks to changing requirements. After all, it’ s hard to find a network manager w[...]

Q: What about security? Q: How impor tant is QoS? A: QoS is very impor tant— and becoming more so every day . Advanced QoS prioritizes and directs traffic to minimize congestion and ensure applications are allotted the bandwidth they need. Without those features, the performance advantages of Gigabit Ethernet (or Fast Ethernet, for that matter) c[...]

Q: Wh y mak e the move to Gig abit Ethernet? The primary security features and applications supported by these switches include access control lists (ACLs), filtering, port security , IEEE 802.1x, multilevel console security , and Secure Shell (SSH) Protocol. This unique combination provides the enhanced security needed to support new and expanding[...]

Network Intelligence—from the Core to the Edge Si IP M Internet VPN PSTN Network Si Si Secur ity QoS High A v ailability Internet VPN High A v ailability QoS Secur ity Quality of Service QoS features ensure critical applications receive the bandwidth they need by differentiating and prioritizing traf fic, so time-sensitive pac kets lik e voice an[...]

Q: But an ything this advanced must be dif ficult to deploy and manage, right? Q: Wh y use Cisco Catalyst switc hes to ease network evolution? A: L ots of reasons—as lots of people can at test. Cisco Systems’ achievements and contributions have made it one of the world’ s most admired companies. Service providers, PTT s, governments, academic[...]

The Cisco Catalyst Series switches provide a comprehensive set of management tools to simplify the deployment and management of switches and intelligent network services. The CiscoW orks family of W eb-based management tools enables network administrators to easily and quickly deploy end-to-end network services. Configuration, administration, monit[...]

Pr oduct Overview 7 • Cisco Catalyst 3550 Ser ies is a new line of enterprise-class, stackable, multilayer switches. With a range of Fast Ethernet and Gigabit Ethernet configurations, it can serve as both a powerful access layer switch for medium enterprise wiring closets, and as a backbone switch for midsize networks. For the first time, cus- to[...]

Catalyst 6500 with Catalyst 6500/4500 Si Si Si Catalyst 3550-12G or 12T with Catalyst 3550/2950 Stack Si Catalyst 6500/450 0 with Catalyst 3550 Stack Si IP Catalyst 6500/450 0 Catalyst 6500/450 0/ 3550 Core/ Distribution L ayer M Access L ayer Si Every network is unique, just like the organizations they serve. These diagrams illustrate four common [...]

A network is, and probably always will be, a work in progress. Companies grow , requirements change, and new applications emerge, presenting opportunities for even greater efficiency and productivity . Cisco Catalyst switches are designed to make those transitions almost effortless. They provide stability in an ever -changing landscape, delivering [...]

A VVID Cisco Architecture for V oice, Video, and Integrated Data. As the industry’ s only enterprise-wide, standards-based network architecture, Cisco A VVID provides the roadmap for combining business and technology strategies into one cohesive model. Av ailability The amount of time that a network or device is operational — in other words, th[...]

Fram e The basic unit of Ethernet data traffic. An Ethernet frame can vary in size from a minimum length of 64 bytes to a maximum length of 1522 bytes. An Ethernet frame contains the Ethernet destination address, Ethernet source address, 802.1Q/1p fields, and TCP/IP packet. Gigabit Ether net An extension of the Ethernet standard, offering speeds of[...]

Lay er 2 The data link layer in the OSI Model. For Ethernet, this applies to the Ethernet frame that contains the Ethernet destination address, Ethernet source address and 802.1Q/1p fields. See also Layer 3. Lay er 3 The physical layer in the OSI Model. For TCP/IP , this applies to the IP packet that contains the IP destination address, IP source a[...]

Catalyst: An agent that precipitates or accelerates a reaction, development, or c hange. 3580 IS Solutions Guide 11/19/02 2:07 PM Page 13[...]

Fo r more information www .cisco.com/g o/catalyst2950 www .cisco.com/g o/catalyst3550 www .cisco.com/g o/catalyst450 0 www .cisco.com/g o/catalyst650 0 3580 IS Solutions Guide 11/19/02 2:07 PM Page 14[...]

Corpor ate Headquart ers Cisco Sy stems, I nc. 170 W est T a sman D rive San Jose , CA 95134-1706 USA www .cisco.com T el: 408 526-400 0 800 553-NE TS (6387) Fax: 408 526-410 0 Europe an Head quarters Cisco Systems Intern ational BV Haar lerb ergp ark Haarlerb ergweg 13-1 9 1101 CH Ams terdam The Netherl ands www-euro pe.cisco. com T el: 31 0 20 35[...]