Specifications

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Cisco 1751 Router Software Configuration Guide
OL-1070-01
Syntax Description
Usage Guidelines
Use the debug vpm port command to limit the debug output to a particular port. The debug output can
be quite voluminous for a single port. A six-port chassis might create problems. Use this debug
command with any or all of the other debug modes.
Examples
The following example shows debug vpm dsp messages only for port 0/0:
debug vpm dsp
debug vpm port 0/0
The following example shows the debug vpm signal messages only for ports 0/0 and 0/1:
debug vpm signal
debug vpm port 0/0
debug vpm port 0/1
The following example shows how to turn off debugging on a port:
no debug vpm port 0/0
The following example shows no output because port level debugs work in conjunction with other
levels:
debug vpm port 0/0
Execution of no debug all turns off all port level debugging. It is usually a good idea to turn off all
debugging and then, one by one, to enter the debug commands you are interested in. This helps to avoid
confusion about which ports you are actually debugging.
debug vpm signal
Use the debug vpm signal EXEC command to collect debug information only for signaling events. Use
the no form of this command to disable debugging output.
[no] debug vpm signal
Usage Guidelines
The debug vpm signal EXEC command collects debug information only for signaling events. This
command can also be useful in resolving problems with signaling to a PBX.
slot-number Slot number in the router where the VIC is installed. Valid entries are
from 0 to 2, depending on the slot where it has been installed.
port Voice port. Valid entries are 0 or 1.