Cisco Cisco IOS Software Release 12.2(54)SE

 lists the supported hardware and the minimum Cisco IOS release required.

Catalyst 3750 Metro 24-AC 
switch 

24 10/100 Ethernet ports, 2 1000X standard SFP

1

 

module slots, 2 1000X ES

2

 SFP slots, and 

field-replaceable AC power supply

1.

SFP = small form-factor pluggable

2.

ES = enhanced services

Cisco IOS Release 12.1(14)AX

Catalyst 3750 Metro 24-DC 
switch 

24 10/100 Ethernet ports, 2 1000X standard SFP module 
slots, 2 1000X ES SFP slots, and field-replaceable DC 
power supply

Cisco IOS Release 12.1(14)AX

SFP modules

1000BASE-T, 1000BASE-SX, and 1000BASE-LX

Cisco IOS Release 12.1(14)AX

1000BASE-ZX and CWDM

3

3.

CWDM = coarse wavelength-division multiplexer

Cisco IOS Release 12.1(14)AX1

100BASE-FX MMF

4

4.

MMF = multimode fiber

Cisco IOS Release 12.2(25)EY

1000BASE-BX

Cisco IOS Release 12.2(25)EY2

DOM

5

 support for GLC-BX, CWDM, and DWDM SFPs

5.

DOM = digital optical monitoring

Cisco IOS Release 12.2(44)SE

1000BASE-LX/LH MMF and SMF

1000BASE-SX MMF

DOM support for GLC-ZX-SM SFP, 
1000BASE-LX/LH, and 1000BASE-SX

1000 FX GLC-EX-SMG SFP

Cisco IOS Release 12.2(46)SE

Additional DWDM SFP qualifications

Cisco IOS Release 12.2(50)SE

For a complete list of supported SFPs and part numbers, see the Catalyst 3750 Metro data sheet at: