Cisco SR2016T-NA Reference Manual page 40

cable cmcpe-list valid-time
cable cmcpe-list valid-time
To set the length of time that the CMTS will consider the current list of CM and CPE devices to be valid,
use the cable cmcpe-list valid-time command in global configuration mode. To reset the time period to
its default value of 3 minutes, use the no form of this command.
Syntax Description time
Defaults 180 seconds (3 minutes)—Cisco IOS Release 12.2(15)BC1 and earlier releases
900 seconds (15 minutes)—Cisco IOS Release 12.2(15)BC2 and later releases
Command Modes Global configuration
Command History Release
12.0(15)SC1,
12.1(8)EC1,
12.2(4)BC1
12.2(15)BC2
Usage Guidelines The Cisco CMTS maintains an internal list of CMs and CPE devices that are currently connected on its
cable interfaces. The CMTS uses this list to provide the data for various show commands and to respond
to SNMP requests that query the entries in the cdxCmCpeTable table in the
MIB.
By default, the Cisco CMTS uses the current list if it is less than 3 minutes old. If the current list is older
than 3 minutes, the Cisco CMTS considers it invalid and rebuilds a new list. This prevents the CMTS
from having to build a new list for every query, which could impact system performance.
You can use the cable cmcpe-list valid-time command to change the length of time that the CMTS
considers the current CM and CPE device list to be valid. This allows you to find the optimum time value
that provides the most current information without affecting the number of CPU cycles that are available
for network processing.
Cisco Broadband Cable Command Reference Guide
2-28
cable cmcpe-list valid-time time
no cable cmcpe-list valid-time
Specifies the time period, in seconds, that the Cisco CMTS should consider
the current CM/CPE list to be valid. In Cisco IOS Release 12.2(15)BC1 and
earlier releases, the valid range is 0 to 3600 seconds, with a default value of
180 seconds (3 minutes). In Cisco IOS Release 12.2(15)BC2 and later
releases, the valid range is 0 to 86400 seconds, with a default value of 900
seconds (15 minutes).
Modification
This command was introduced for the Cisco uBR7100 series and
Cisco uBR7200 series routers.
This command was supported on the 12.2 BC train for the Cisco uBR10012
router.
The maximum range for time was expanded from 3600 to 86400 seconds,
and the default was changed from 180 to 900 seconds.
Chapter 2 Cisco CMTS Configuration Commands
CISCO-DOCS-EXT-MIB
OL-1581-08