Chapter 21: Integrated Upstream Agility
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
671
The basis for creating the example shown in the figure above is the list of commands that pertain to the figure from the
previous page plus the following commands:
configure cable spectrum-group trigger 30 period 14400
configure cable spectrum-group 5 state 1 trigger 30 next-state 1
configure cable spectrum-group 5 state 2 trigger 30 next-state 1
configure cable spectrum-group 5 state 3 trigger 30 next-state 1
configure cable spectrum-group 5 state 4 trigger 30 next-state 1
configure cable spectrum-group 5 state 5 trigger 30 next-state 1
configure cable spectrum-group 5 state 6 trigger 30 next-state 1
The state diagram above can be represented by the state table in below. For completion, we have added more detail
around the definition of the degradation triggers and the periodic triggers. As shown in the state table below, each state
has a unique set of degradation triggers and periodic triggers.
Table 87.
State Table That Matches the State Diagram
States
Triggers
Current
Next
Num.
Definition
1
2
10
{SNR<25 dB} AND {%unc. fec errors>3% OR %(unc + cor) fec errors> 4% }
2
3
10
{SNR<25 dB} AND {%unc. fec errors>3% OR %(unc + cor) fec errors> 4% }
3
4
10
{SNR<25 dB} AND {%unc. fec errors>3% OR %(unc + cor) fec errors> 4% }
4
5
10
{SNR<25 dB} AND {%unc. fec errors>3% OR %(unc + cor) fec errors> 4% }
5
6
10
{SNR<25 dB} AND {%unc. fec errors>3% OR %(unc + cor) fec errors> 4% }
2
1
30
period 14400 seconds
3
1
30
period 14400 seconds
4
1
30
period 14400 seconds
5
1
30
period 14400 seconds
