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3com WX3000 Manuel D’Utilisation

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4-3 
Follow the step below to specify the main configuration file to be used at reboot: 
To do… 
Use the command… 
Remarks 
Specify the main configuration file to 
be used at next reboot 
startup saved-configuration 
filename [ main | backup ] 
Required 
 
Identifying and Diagnosing Pluggable Transceivers 
Introduction to pluggable transceivers 
At present, four types of pluggable transceivers are commonly used, and they can be divided into 
optical transceivers and electrical transceivers based on transmission media as shown in 
. 
Table 4-1 Commonly used pluggable transceivers 
Transceiver type 
Applied environment
Whether can be an 
optical transceiver 
Whether can be an 
electrical transceiver
SFP (Small 
Form-factor 
Pluggable) 
Generally used for 
100M/1000M Ethernet 
interfaces or POS 
155M/622M/2.5G 
interfaces 
Yes Yes 
GBIC (GigaBit 
Interface Converter) 
Generally used for 
1000M Ethernet 
interfaces 
Yes Yes 
XFP (10-Gigabit small 
Form-factor 
Pluggable) 
Generally used for 
10G Ethernet 
interfaces 
Yes No 
XENPAK (10 Gigabit 
EtherNet Transceiver 
Package) 
Generally used for 
10G Ethernet 
interfaces 
Yes Yes 
 
 
For pluggable transceivers supported by the device, refer to 3Com WX3000 Series Unified Switches  
Installation Manual. 
 
Identifying pluggable transceivers 
As pluggable transceivers are of various types and from different vendors, you can perform the 
following configurations to identify main parameters of the pluggable transceivers, including transceiver 
type, connector type, central wavelength of the laser sent, transfer distance and vendor name or vendor 
name specified.