Hi Jun,
In 12.2(33)SCC and onward we do have a test command to trigger this message. The CM_CTRL DOCSIS messages are not used by any process on the CMTS beside this test command at this time.
This test command is not available to 12.3BC releases.
** WARNING ** Please be aware this is a test command and is not officially supported - we do not ever recommend running test commands in a production IOS device. Please restrict this use to the lab boxes.
The command is "test cable cm-ctrl"
test cable cm-ctrl { | }
test cable cm-ctrl 0016.92fb.55bc ?
<0-65535> Transaction ID
test cable cm-ctrl 0016.92fb.55bc 100 ?
1 Upstream Channel RF Mute
3 CM Reinitialize
4 Disable Forwarding
5 Override DS Status Event Enable Bitmask
6 Override US Status Event Enable Bitmask
tlv CM-CTRL TLVs in hex (<= 80 bytes)
HTH,
Jack