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CHAPTER 15
Troubleshooting Switch Components
•
Troubleshooting Network Interfaces on EX3200 and EX4200 Switches on page 193
•
Troubleshooting Uplink Module Installation or Replacement on EX3200 and EX4200
Switches on page 194
Troubleshooting Network Interfaces on EX3200 and EX4200 Switches
Thistopicprovidestroubleshootinginformationforspecificproblemsrelatedtointerfaces
on EX3200 and EX4200 switches.
•
The interface on one of the last four built-in network ports in an EX3200 switch (for
example, interface ge-0/0/23) is down on page 193
•
The interface on the port in which an SFP or SFP+ transceiver is installed in an SFP+
uplink module is down on page 194
The interface on one of the last four built-in network ports in an EX3200 switch (for example,
interface ge-0/0/23) is down
Problem The interface on one of the last four built-in ports (ge-0/0/20 through ge-0/0/23 on
24-port models or ge-0/0/44 through ge-0/0/47 on 48-port models) of an EX3200
switch is down.
An SFP or SFP+ uplink module is installed in the switch and a transceiver is installed in
one of the ports on the uplink module.
Whenyou check the status with the CLI commandshowinterfacesge-or with the J-Web
user interface, the disabled port is not listed.
Cause The last four built-in ports use the same ASIC as the SFP uplink module. Therefore, if
you install a transceiver in an SFP or SFP+ uplink moduleinstalled in an EX3200 switch,
a corresponding base port from the last four built-in ports is disabled.
Solution If you need to use the disabled built-in port, you must remove the transceiver from the
SFP or SFP+ uplink module. Alternatively, you can install an XFP uplink module instead
of anSFP or SFP+ uplink module.There is no conflict between the built-innetwork ports
and the ports on the XFP uplink modules.
193Copyright©2010,Juniper Networks, Inc.