So basically there are various models for the Cisco 3550 that have specific hardware limitations. To verify which model you currently have you can run this command
Switch>show version
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA13, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by cisco Systems, Inc.
Compiled Fri 27-Feb-09 22:20 by amvarma
Image text-base: 0x80010000, data-base: 0x80570000
ROM: Bootstrap program is C2950 boot loader
Switch uptime is 0 minutes
System returned to ROM by power-on
System image file is "flash:c2950-i6q4l2-mz.121-22.EA13.bin"
cisco WS-C2950-12 (RC32300) processor (revision B0) with 20957K bytes of memory.
Processor board ID FAB0535Q22L
Last reset from system-reset
Running Standard Image
12 FastEthernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:06:D6:AB:A0:40
Motherboard assembly number: 73-5782-08
Motherboard serial number: FAB0535BC1K
Model revision number: B0
Model number: WS-C2950-12
System serial number: FAB0535Q22L
Configuration register is 0xF
After you find the model number compare it with the below versions, this can give you a better indication of what your device can handle.
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Cisco Catalyst 3550-48
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WS-C3550-48-EMI
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● 48 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 rack unit (RU) stackable, multilayer switch
● Delivers enterprise-class intelligent services to the network edge
● Enhanced Multilayer Software Image (EMI) installed
● Provides advanced IP routing
|
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Cisco Catalyst 3550-48
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WS-C3550-48-SMI
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● 48 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch
● Delivers enterprise-class intelligent services and basic IP routing to the network edge
● Standard Multilayer Software Image (SMI) installed, upgradeable to advanced IP routing
|
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Cisco Catalyst 3550-24
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WS-C3550-24-EMI
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● 24 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch
● Delivers enterprise-class intelligent services to the network edge
● EMI installed
● Provides advanced IP routing
|
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Cisco Catalyst 3550-24
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WS-C3550-24-SMI
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● 24 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch
● Delivers enterprise-class intelligent services and basic IP routing to the network edge
● SMI installed, upgradeable to advanced IP routing
|
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Cisco Catalyst 3550-24 PWR
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WS-C3550-24PWR-EMI
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● 24 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch; integrated inline power
● Delivers enterprise-class intelligent services to the network edge
● EMI installed
● Provides advanced IP routing
|
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Cisco Catalyst 3550-24 PWR
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WS-C3550-24PWR-SMI
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● 24 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch; integrated inline power
● Delivers enterprise-class intelligent services and basic IP routing to the network edge
● SMI installed, upgradeable to advanced IP routing
|
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Cisco Catalyst 3550-24 DC
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WS-C3550-24-DC-SMI
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● 24 10/100 ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch, DC powered
● Delivers enterprise-class intelligent services and basic IP routing to the network edge
● SMI installed, upgradeable to advanced IP routing
|
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Cisco Catalyst 3550-24 FX
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WS-C3550-24-FX-SMI
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● 24 100FX multimode fiber ports and 2 GBIC-based Gigabit Ethernet ports
● 1 RU stackable, multilayer switch
● Delivers enterprise-class intelligent services and basic IP routing to the network edge
● SMI installed, upgradeable to advanced IP routing
|
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Cisco Catalyst 3550-12G
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WS-C3550-12G
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● 10 GBIC-based Gigabit Ethernet ports and 2 10/100/1000 ports
● 1.5 RU stackable, multilayer Gigabit Ethernet switch
● Delivers enterprise-class intelligent services to the network edge
● Provides advanced IP routing
|
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Cisco Catalyst 3550-12T
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WS-C3550-12T
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● 10 10/100/1000 ports and 2 GBIC-based Gigabit Ethernet ports
● 1.5 RU stackable, multilayer Gigabit Ethernet switch
● Delivers enterprise-class intelligent services to the network edge
● Provides advanced IP routing
|
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EMI Upgrade Kit
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CD-3550-EMI=
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● EMI upgrade kit for all standard versions of the Cisco Catalyst 3550-24, Catalyst 3550-24 PWR, Catalyst 3550-24 DC, Catalyst 3550-24 FX, and Catalyst 3550-48 Switches
● Provides advanced IP routing
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kind Regards
Jean-Pierre Roux
