
5-54
Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 5 Cisco CMTS Debugging Commands
debug cable map
debug cable map
To display debugging messages for DOCSIS MAC-layer MAP messages, use the
debug cable map
command in privileged EXEC mode. The
no
form of this command disables debugging output.
debug cable map
[
error
|
sid
[
sid-num
] ]
no debug cable map
[
error
|
sid
[
sid-num
] ]
Syntax Description
Command Modes
Privileged EXEC
Command History
Examples
The following example shows how to display all MAP messages, with and without data grants:
Router#
debug cable map
19:41:53: On interface Cable6/0, sent 5000 MAPs, 1321 MAPs had grant(s)Long Grants
13256993, Total Short Grants 223
------------------ MAP MSG --------------------
us_ch_id: 1 ucd_count: 5 num_elems: 9 reserved: 0
Alloc Start Time: 33792 Ack Time: 33618
Rng_bkoff_start: 0 Rng_bkoff_end: 2
Data_bkoff_start: 1 Data_bkoff_end: 3:
sid:16383 iuc:1 mslot_offset:0
sid:0 iuc:7 mslot_offset:40
------------------ MAP MSG ---------------------
us_ch_id: 1 ucd_count: 5 num_elems: 7 reserved: 0
Alloc Start Time: 33712 Ack Time: 33578
Rng_bkoff_start: 0 Rng_bkoff_end: 2
Data_bkoff_start: 1 Data_bkoff_end: 3
sid:2 iuc:6 mslot_offset:0
sid:16383 iuc:1 mslot_offset:16
sid:0 iuc:7 mslot_offset:40
Table 5-5
describes the fields displayed by the
debug cable map
command.
error
Displays debugging messages about DOCSIS MAP messages that were
received with errors.
sid
[
sid-num
]
Specifies the specific service ID (SID) to be debugged in DOCSIS MAP
messages. The valid range for the optional
sid-num
value is 1 to 8191. If
sid-num is not specified, debugging messages are shown for all SIDs.
Release
Modification
12.1 T
This command was introduced.
12.2(15)BC1 The
error
option was added.