Cisco Systems 2950 Large Campus Configuration

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Catalyst2950 Desktop Switch Software Configuration Guide
78-11380-05
Chapter1 Overview Network Configuration Examples
Figure1-3 Collapsed Backbone and Switch Cluster Configuration
Large Campus Configuration
Figure 1-4 shows a configuration for a network of more than 1000users. Because it can aggregate up to
130 Gigabi t connections, a Catalyst 6500 multilayer switch is used as the backbone switch.
You can use the workgroup configurations shown in previous examples to create workgroups with
Gigabit uplinks to the Catalyst 6500 switch. For example, you can use switch clusters that have a mix of
Catalyst 2950 switches.
The Catalyst 6500 switch provides the workgroups with Gigabit access to core resources:
•Cisco7000 series router for access to the WAN and the Internet.
•Server farm that includes a call-processing server running Cisco CallM ana ger softwa re. Cisc o
CallManager controls call processing, routing, and IP phone features and configuration.
•Cisco Access gateway (such as Cisco Access Digital Trunk Gateway or Cisco Access Analog Trunk
Gateway) that connects the IP network to the Public Switched Telephone Network (PSTN) or to
users in an IP telephony network.
IP IP IP
IP
Catalyst 3550-12T or
Catalyst 3550-12G switch
200 Mbps
Fast EtherChannel
(400-Mbps full-duplex
Fast EtherChannel)
Gigabit
servers
Cisco
CallManager
60994
Cisco 2600 router
1 Gbps
(2 Gbps full duplex)
Cisco
IP Phones
Cisco IP Phones
Workstations running
Cisco SoftPhone software
Catalyst
2950,
2900 XL,
3550, and
3500 XL
GigaStack cluster
Catalyst
3524-PWR XL
GigaStack cluster
Catalyst 2950, 2900 XL,
3550, and 3500 XL
GigaStack cluster
IP
Si