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.
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.
