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4-Port Gigabit Ethernet Layer 3 Switching Module (GBIC) Quick Start Guide
Removing the
Transceiver
If you need to replace a GBIC transceiver, remove the old one by
compressing the side tabs and gently pull the transceiver out of the port.
GBIC
Troubleshooting
After you insert the GBIC transceiver into the port, the system software
verifies whether the transceiver is working properly.
To ensure optimal performance, compatibility, and regulatory compliance,
use only GBIC transceivers that 3Com supports. For a list of currently
supported GBICs, see this 3Com Web site:
http://www.3com.com/gigabit_ethernet/gbics
If the transceiver is not working properly, one of the following error
messages is displayed on the EME Console:
Unqualified GBIC Error
If the system detects that there is an unqualified GBIC installed or there is
a problem with the integrity of the GBIC, it sets the port type to
Unqualified GBIC
, displays a short description at the EME Console
(
Uqual.GBIC
), and captures the error in the event log:
WARNING: The GBIC in Port XX is NOT approved by 3Com & may
violate electromagnetic emission or safety requirements for
your country. Refer to 3Com’s web page
(www.3com.com/gigabit_ethernet/gbics) for our current
approval list.
The following informational messages are shown in the event log:
■
Unqualified GBIC: I2C read error
A transceiver that is not properly connected to the module can cause
this problem. The transceiver connects to the module host board
through a 20-pin connector. If the transceiver is not seated properly, a
clean connection cannot be established.
Corrective Action
To correct this problem, completely remove the transceiver and then
reinsert it. If the problem persists, contact 3Com Technical Support.
For contact information, see the Technical Support appendix in the
CoreBuilder 9000 Enterprise Switch Getting Started Guide
.
■
Unqualified GBIC: Checksum match error
The system also uses checksum error detection to verify the integrity
of the GBIC data that it reads. If the system detects a problem with
the data, the EME Console displays an error message that indicates a
checksum failure.
Summary of Contents for 3CB9RG4
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