
show controllers serial
PA-T3 and PA-2T3 Serial Port Adapters 15
show controllers serial
Use the show controllers serial privileged EXEC command to display information that is specific
to the interface hardware.
show controllers serial [slot/port]
show controllers serial
[slot/port-adapter/port] (Cisco 7500 series and Cisco 7000 series
routers with the RSP7000 and RSP7000CI)
Syntax Description
Command Mode
Privileged EXEC
Usage Guidelines
This command first appeared in Cisco IOS Release 10.0.
This command was modified in Cisco IOS Release 11.1 CA to include sample output for the PA-T3
port adapter.
The information displayed is generally useful for diagnostic tasks performed by technical support
personnel only. For the PA-T3, the show controllers serial command also displays configuration
information such as the framing, clock source, bandwidth limit, whether scrambling is enabled, and
DSU mode configured on the interface. Also displayed are the performance statistics for the current
interval and last 15-minute interval and whether any alarms exist.
Sample Display
The following is sample output from the show controllers serial command that shows serial port
1/0/0 on a 1-port T3 serial port adapter installed on a VIP2 in chassis slot 1:
router# show controllers serial 2/0/1
Serial1/0/0 -
Mx T3(1) HW Revision 0x3, FW Revision 2.55
Framing is c-bit, Clock Source is Line
Bandwidth limit is 35000, DSU mode 1, Cable length is 50
Data in current interval (325 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation
0 P-bit Err Secs, 0 P-bit Sev Err Secs
0 Sev Err Framing Secs, 0 Unavailable Secs
0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 P-bit Coding Violation,
0 C-bit Coding Violation,
0 P-bit Err Secs, 0 P-bit Sev Err Secs,
0 Sev Err Framing Secs, 0 Unavailable Secs,
0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs
No alarms detected.
slot (Optional) Slot number of the interface.
port (Optional) Port number on the interface. The port value is always 0.
port-adapter (Optional) On Cisco 7500 series routers and Cisco 7000 series routers
with the RSP7000 and RSP7000CI, the location of the port adapter on
a VIP. The value can be 0 or 1.
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