Cisco CATALYST 2950-24 XL 24 PORT RJ45 RACK MOUNT 10/100 SWITCH STANDARD SOFTWARE Specification Guide
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Catalyst 2950 Switch Hardware Installation Guide
OL-6156-01
Chapter 1 Overview
Features
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Catalyst 2950G-12-EI—12 10/100 Ethernet ports and 2 GBIC module slots
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Catalyst 2950G-24-EI—24 10/100 Ethernet ports and 2 GBIC module slots
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Catalyst 2950G-24-EI-DC—24 10/100 Ethernet ports and 2 GBIC module slots with
DC-input power
DC-input power
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Catalyst 2950G-48-EI—48 10/100 Ethernet ports and 2 GBIC module slots
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Catalyst 2950ST-8 LRE switch—8 LRE ports, 2 10/100/1000 Ethernet ports, and
2 small-form-factor pluggable (SFP) module slots. (Two of the four uplink ports are active at
one time.)
2 small-form-factor pluggable (SFP) module slots. (Two of the four uplink ports are active at
one time.)
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Catalyst 2950ST-24 LRE switch—24 LRE ports, 2 10/100/1000 Ethernet ports, and
2 SFP module slots. (Two of the four uplink ports are active at one time.)
2 SFP module slots. (Two of the four uplink ports are active at one time.)
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Catalyst 2950ST-24 LRE 997 switch—24 LRE ports, 2 10/100/1000 Ethernet ports, and
2 SFP module slots with DC-input power. (Two of the four uplink ports are active at one time.)
2 SFP module slots with DC-input power. (Two of the four uplink ports are active at one time.)
Note
See the Catalyst 2950 LRE switch release notes for a list of supported SFP modules for the
Catalyst 2950 LRE switches.
Catalyst 2950 LRE switches.
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Catalyst 2950SX-24 switch—24 10/100 Ethernet ports and 2 1000BASE-SX ports
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Catalyst 2950T-24 switch—24 10/100 Ethernet ports and 2 10/100/1000 Ethernet ports
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Catalyst 2950SX-48-SI switch—48 10/100 Ethernet ports and 2 1000BASE-SX ports
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Catalyst 2950T-48-SI switch—48 10/100 Ethernet ports and 2 10/100/1000 Ethernet ports
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On Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches,
support for these GBIC modules:
support for these GBIC modules:
1000BASE-SX GBIC
1000BASE-LX/LH GBIC
1000BASE-ZX GBIC
1000BASE-T GBIC (model WS-5483)
Coarse Wave Division Multiplexer (CWDM) fiber-optic GBIC
GigaStack GBIC
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Configuration
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For 10/100 ports, autonegotiates the speed and duplex settings
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For 10/100/1000 ports on the Catalyst 2950T-24 switch, autonegotiates the speed and supports
only full-duplex mode
only full-duplex mode
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For 10/100/1000 ports on the Catalyst 2950T-48-SI and 2950 LRE switches, autonegotiates the
speed and duplex setting when operating at 10 or 100 Mbps. When the switch is running at 1000
Mbps, it supports only full-duplex mode.
speed and duplex setting when operating at 10 or 100 Mbps. When the switch is running at 1000
Mbps, it supports only full-duplex mode.
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For 100BASE-FX ports, supports only 100-Mbps and full-duplex settings
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For 1000BASE-SX ports, supports only 1000-Mbps and full-duplex settings
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Supports 8192 MAC addresses
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Checks for errors on a received packet, determines the destination port, stores the packet in
shared memory, and then forwards the packet to the destination port
shared memory, and then forwards the packet to the destination port