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Cisco 2950 - Catalyst Switch User Manual

Cisco 2950 - Catalyst Switch
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1-21
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-10
Chapter 1 Overview
Network Configuration Examples
All ports on the residential Catalyst 2950 and 2955 switches (and Catalyst LRE switches if they are
included) are configured as 802.1Q trunks with protected port and STP root guard features enabled. The
protected port feature provides security and isolation between ports on the switch, ensuring that
subscribers cannot view packets destined for other subscribers. STP root guard prevents unauthorized
devices from becoming the STP root switch. All ports have IGMP snooping or CGMP enabled for
multicast traffic management. ACLs on the uplink ports to the aggregating Catalyst 3550 multilayer
switches provide security and bandwidth management.
The aggregating switches and routers provide services such as those described in the previous examples,
Small to Medium-Sized Network Configuration” and “Large Campus Configuration.”
Figure 1-7 Catalyst 2950 Switches in a MAN Configuration
50833
Service
Provider
POP
Mini-POP
Gigabit MAN
Residential
location
Catalyst 3550
multilayer
switches
Catalyst
switches
Catalyst 6500
switches
Cisco 12000
Gigabit switch routers
Si Si
Si Si
Si Si
Si
Si
Residential
gateway (hub)
Set-top box
TV
PC
Set-top box
TV

Table of Contents

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Cisco 2950 - Catalyst Switch Specifications

General IconGeneral
Forwarding Rate6.6 Mpps
Jumbo Frame SupportNo
Weight8.8 lbs (4 kg)
RAM16 MB
Flash Memory8 MB
ManageableYes
Form FactorRack-mountable
Ports24 Ethernet 10/100 ports
Uplink Ports2 x 10/100/1000Base-T ports
VLANs250
MAC Address Table Size8000
Power Supply100-240 VAC, 50-60 Hz
Dimensions4.4 cm x 44.5 cm x 24.2 cm
Operating Temperature0 to 40 °C (32 to 104 °F)
Storage Temperature-25 to 70 °C (-13 to 158 °F)
Operating Humidity10% to 85% (non-condensing)
Storage Humidity5% to 95% (non-condensing)

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