Cisco SR2016T-NA Reference Manual page 366

cable upstream threshold
Command History Release
12.1(7)CX1
12.2(8)BC2
Usage Guidelines
Separate CNR thresholds are assigned to the primary and secondary modulation profiles. Both profiles,
however, are assigned the same correctable and uncorrectable FEC values.
The uncorrectable FEC error count includes packets that have header checksum errors and "no unique
Note
word detected" errors.
Examples
The following example shows upstream 5 configured with the CNR threshold for the primary modulation
profile set to 20 dB, the CNR threshold for the secondary modulation profile set to 10 dB, the correctable
FEC error rate set to 5 percent of total packets received on the upstream, and the uncorrectable FEC error
rate set to 1 percent of total packets received on the upstream:
Router(config)# interface cable 3/0
Router(config-if)# cable upstream 5 threshold cnr-profile1 20 cnr-profile2 10 corr-fec 5
uncorr-fec 1
Router(config-if)#
Related Commands Command
cable modulation-profile
cable upstream hop-
priority
cable upstream
modulation-profile
show cable hop
show cable modulation-
profile
Cisco Broadband Cable Command Reference Guide
2-354
Modification
This command was introduced for Cisco CMTS routers using the
Cisco uBR-MC16S cable interface line card.
Support was added for the Cisco uBR10012 router and the
Cisco uBR-LCP2-MC16S cable interface line card. Also, the ranges
and defaults for the correctable and uncorrectable FEC error
thresholds were changed.
Description
Creates a cable modulation profile.
Determines the order of the corrective actions to be taken when ingress
noise exceeds the allowable value for an upstream.
Configures an upstream for one modulation profile (static profile) or two
modulation profiles (Dynamic Upstream Modulation).
Displays the current hop period and threshold for an upstream, along with
other statistics.
Displays the cable modulation profiles that have been created.
Chapter 2 Cisco CMTS Configuration Commands
OL-1581-08