Cisco Broadband Cable Command Reference Guide

Chapter 4 Cisco Cable Modem Termination System Debugging Commands
debug cable dynsrv
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Cisco Broadband Cable Command Reference Guide
debug cable dynsrv
To display information about DOCSIS 1.1 dynamic service flow messages, use the debug cable dynsrv
command in privileged EXEC mode. To disable debugging output, use the no form of this command.
debug cable dynsrv
no debug cable dynsrv
Syntax Description This command has no arguments or keywords.
Command Modes Privileged EXEC
Command History
Release Modification
12.0(7)XR and 12.1(1a)T1 This command was introduced for DOCSIS 1.0+ operation.
12.1(4)CX This command was enhanced for DOCSIS 1.1 operation.
12.2(4)BC1 Support was added to the Release 12.2 BC train.
Usage Guidelines This command activates dynamic service flow debugging, which displays a debugging message
whenever one of the following DOCSIS 1.1 dynamic service messages is processed:
Dynamic Service Add (DSA)—This message is used to create a new service flow.
Dynamic Service Change (DSC)—This message is used to change the attributes of an existing
service flow.
Dynamic Service Deletion (DSD)—This message is used to delete an existing service flow.
Each type of dynamic service message includes a request (DSA-REQ, DSC-REQ, DSD-REQ) and a
response (DSA-RSP, DSC-RSP, DSD-RSP).
Do not use this command when you have a large number of active CMs on your network, because it could
generate a huge amount of output to the console port.
Note Debugging must be enabled for one or more cable interfaces, using the debug cable interface command,
before the debug cable dynsrv command will display any output.
Tip If using the debug cable dynsrv command, also use the debug cable mac-address and the debug cable
tlvs command to enable full DOCSIS MAC-layer debugging.
Examples The following example shows typical output displayed by the debug cable dynsrv command:
Router# debug cable interface c3/0
Router# debug cable dynsrv
CMTS dynsrv debugging is on
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