Cisco 2950 Software Configuration Guide - Page 54

Network Configuration Examples Chapter 1 Overview Figure 1-6 Large Campus Configuration WAN IP telephony network or PSTN Cisco CallManager Cisco 7200 Cisco access or 7500 router gateway Servers Catalyst 6500 switch Catalyst 2950, 2900 XL, 3500 XL, and 3550 GigaStack cluster 1 Gbps (2 Gbps full duplex) Catalyst 3550-24PWR cluster Workstations running Cisco SoftPhone software IP IP Cisco IP Phones IP IP IP Cisco IP Phones 60995 Multidwelling Network Using Catalyst 2950 Switches A growing segment of residential and commercial customers are requiring high-speed access to Ethernet metropolitan-area networks (MANs). Figure 1-7 shows a configuration for a Gigabit Ethernet MAN ring using Catalyst 3550 multilayer switches as aggregation switches in the mini-point-of-presence (POP) location. These switches are connected through 1000BASE-X GBIC ports. The resident switches can be Catalyst 2950 switches, providing customers with high-speed connections to the MAN. Catalyst 2900 LRE XL or 2950 LRE Layer 2-only switches also can be used as residential switches for customers requiring connectivity through existing telephone lines. The Catalyst LRE switches can then connect to another residential switch or to an aggregation switch. For more information about these switches, refer to the Catalyst 2950 Desktop Switch Hardware Installation Guide. 1-20 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10