Juniper Networks EX4200 Manual Do Utilizador
Chapter 15
Troubleshooting Switch Components
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Troubleshooting Network Interfaces on EX3200 and EX4200 Switches
This topic provides troubleshooting information for specific problems related to
interfaces on EX3200 and EX4200 switches.
interfaces on EX3200 and EX4200 switches.
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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
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.
in one of the ports on the uplink module.
When you check the status with the CLI command
show interfaces ge-
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 module installed in an EX3200
switch, a corresponding base port from the last four built-in ports is disabled.
if you install a transceiver in an SFP or SFP+ uplink module installed 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 an SFP or SFP+ uplink module. There is no conflict between the built-in
network ports and the ports on the XFP uplink modules.
the SFP or SFP+ uplink module. Alternatively, you can install an XFP uplink module
instead of an SFP or SFP+ uplink module. There is no conflict between the built-in
network ports and the ports on the XFP uplink modules.
Troubleshooting Network Interfaces on EX3200 and EX4200 Switches
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