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Cisco Broadband Cable Command Reference Guide
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Chapter 2 Cisco CMTS Configuration Commands
cable sflog
cable sflog
To enable service flow logging and to configure the number and duration of entries in the log, use the
cable sflog
command in global configuration mode. To disable service flow logging, use the
no
form of
the command.
cable sflog
max-entry
number
entry-duration
time
no cable sflog
Syntax Description
Defaults
max-entry
= 0 (service flow logging is disabled) and
entry-duration
= 3600 seconds
Command Modes
Global configuration
Command History
Usage Guidelines
A DOCSIS specification currently being developed requires the DOCSIS CMTS to maintain a log table
that contains entries of deleted service flows. The
cable sflog
command enables the logging of deleted
service flows in this table and also sets the maximum number of entries in the log. When the log becomes
full, the oldest entries are deleted to make room for the newest ones.
This command also configures how long each entry can remain in the log. When an entry has been in the
table for the specified time, the CMTS deletes it, even if the log is not currently full.
To display the service flow log, use SNMP commands to display the docsQosServiceFlowLogEntry
entries in the docsQosServiceFlowLogTable table. These attributes are defined in the
Data Over Cable
System Interface Specification Quality of Service Management Information Base (DOCSIS-QOS MIB)
internet draft.
Cisco IOS Release 12.2(15)BC1 supports version 4 of this DOCSIS-QOS MIB draft, which is available
on the IETF Internet-Drafts web site:
http://http://www.ietf.org/ID.html
max-entry
number
Specifies the maximum number of entries in the service flow log. When the
log becomes full, the oldest entries are deleted to make room for new entries.
The valid range is 0 to 59999, with a default of 0 (which disables service
flow logging).
Note
The
max-entry
value applies to the entire chassis on the
Cisco uBR7100 series and Cisco uBR7200 series routers, but applies
to individual cable line cards on the Cisco uBR10012 router.
entry-duration
time
Specifies how long, in seconds, entries can remain in the service flow log.
The CMTS deletes entries in the log that are older than this value. The valid
range is 1 to 86400 seconds, with a default value of 3600 seconds (1 hour).
Release
Modification
12.2(15)BC1
This command was introduced.