Table of Contents
Advertisement
Chapter 2
Cisco CMTS Configuration Commands
Filter Group Management
The second form of the cable submgmt default command controls the default values for the entries in
the docsSubMgtCmFilterTable, which assigns the CM to one or more filter groups. A filter group
specifies what filters are applied to the traffic going to or coming from each particular CM or CPE
device. Filter groups can be numbered 0 to 1024, where 0 specifies that no filtering is done for that
particular traffic type.
The actual filters specified in these commands must be created by setting the appropriate attributes in
Note
the DOCS-SUBMGT-MIB MIB using SNMP SET commands.
cable submgmt default filter-group cpe downstream group-id
Sets the ocsSubMgtSubFilterDownDefault attribute, which is the default value for the
docsSubMgtSubFilterDownstream attribute in the docsSubMgtCmFilterTable. This attribute applies to
downstream traffic that is sent to the CPE devices behind a particular CM.
cable submgmt default filter-group cpe upstream group-id
Sets the docsSubMgtSubFilterUpDefault attribute, which is the default value for the
docsSubMgtSubFilterUpstream attribute in the docsSubMgtCmFilterTable. This attribute applies to
upstream traffic that is sent by the CPE devices behind a particular CM.
cable submgmt default filter-group cm downstream group-id
Sets the docsSubMgtCmFilterDownDefault attribute, which is the default value for the
docsSubMgtCmFilterDownstream attribute in the docsSubMgtCmFilterTable. This attribute applies to
downstream traffic that is addressed to a particular CM.
cable submgmt default filter-group cm upstream group-id
Sets the docsSubMgtCmFilterUpDefault attribute, which is the default value for the
docsSubMgtCmFilterUpstream attribute in the docsSubMgtCmFilterTable. This attribute applies to
upstream traffic that is sent by a particular CM.
Examples
The following commands specify that the CMTS defaults to actively managing the CPE devices for each
CM that registers, allowing and learning up to four IP addresses for the CPE devices behind that CM.
Router# configure terminal
Router(config)# cable submgmt default active
Router(config)# cable submgmt default learnable
Router(config)# cable submgmt default max-cpe 4
Router(config)#
The following commands specify that the CMTS defaults to actively managing the CPE devices for each
CM that registers. Each CM, however, must specify its own MAX-CPE value; otherwise, that value
defaults to 0 and all traffic to and from the CPE devices for that CM is blocked.
Router# configure terminal
Router(config)# cable submgmt default active
Router(config)# cable submgmt default max-cpe 0
Router(config)#
The following commands specify that the CMTS defaults to not actively managing the CPE devices for
each CM that registers. However, if the CM at registration time indicates that the CMTS is to actively
manage the CPE devices, the CMTS defaults to allowing only one CPE device. Learning also is disabled,
so that one CPE device, therefore, must be specified in the DOCSIS configuration file that the CM uses
to register.
OL-1581-08
Cisco Broadband Cable Command Reference Guide
cable submgmt default
2-247
Advertisement
Table of Contents
