i have cisco UBR 7246 router having MC88v line card , Mc88v card having two physical Downstream port.
every physical DS port having four logical channel with different center fre.
now the problem i am facing is modems are not equally balance among the four logical channel of same DS.
so any one plz suggest to do load balance config on my Box.
I would suggest to read this :
http://www.cisco.com/c/en/us/td/docs/cable/cmts/config_guide/b_cmts_ds_u...
Dear ,
I have done configuration as below , but its not work for me.
cable load-balance docsis-group 11 index 81
downstream Integrated-Cable 5/0 rf-channel 0-3
threshold load minimum 10
policy pure-ds-load
init-tech-list 1-4
!
Output :
sur-cmt03#sh cable load-balance all
DOCSIS LB Enabled: Yes
DOCSIS Group Status Interval DCC mask Policy Method Threshold
Group Index /UCC DS/US M/E/U/P/S
11 81 GE 10 0x78(1)/N 0 m/m 10/10/70/70/50
Current load:
Interface State Group Utilization Reserved Modems Flows Weight
Index
In5/0:0 (303 MHz) up 81 7%(7%/14%) 0% 35 35 37
In5/0:1 (309 MHz) up 81 4%(4%/14%) 0% 12 12 37
In5/0:2 (315 MHz) up 81 38%(38%/14%) 0% 123 123 37
In5/0:3 (321 MHz) up 81 31%(31%/14%) 0% 141 141 37
Target assignments:
Interface State Group Target
Index
In5/0:0 (303 MHz) up 81 In5/0:1 (309 MHz) [enforce]
In5/0:1 (309 MHz) up 81
In5/0:2 (315 MHz) up 81 In5/0:1 (309 MHz) [enforce]
In5/0:3 (321 MHz) up 81 In5/0:1 (309 MHz) [enforce]
Statistics:
Target interface State Transfers
Complete Pending Retries Failures
In5/0:0 (303 MHz) up 0 0 0 0
In5/0:1 (309 MHz) up 0 0 0 0
In5/0:2 (315 MHz) up 0 0 0 0
In5/0:3 (321 MHz) up 0 0 0 0
Pending:
Modem Grp Idx Source interface Target interface Retries
Are you trying to load balance Docsis 1.x/2.0 modems or 3.0 modems or both? I will assume both.
The config you have will work for 1.x and 2.0 modems only but your missing a couple lines:
specifically the upstream line and the docsis-policy line
Here is the relevant config from mine
!Turn on docsis load balancing and enable rule 1 and docsis policy 100
cable load-balance docsis-enable
cable load-balance rule 1 enabled
cable load-balance docsis-policy 100 rule 1
! for Docsis 1.x/2.0 modems
! need both downstream and upstream lines so that it knows which
! downstreams and upstreams are part of the same mac-domain
cable load-balance docsis-group 101 index 82
downstream Integrated-Cable 1/0 rf-channel 0-3
upstream Cable1/0 2-3
method utilization
threshold load 70
policy pure-ds-load
docsis-policy 100
! For docsis 3.0 modems
cable load-balance docsis-group FN 5 MD Cable1/0
method utilization
threshold load 70
policy pure-ds-load
docsis-policy 100
! Fiber node needed for docsis 3.0 modems tells it which
! upstreams and downstreams are part of the same mac domain
cable fiber-node 5
downstream Integrated-Cable 1/0 rf-channel 0-3
upstream Cable 1 connector 2-3
Dear,
Thanks for prompt support , its working for me now with method modem count.
one more issue can we load balance between two physical downstream (or you can say load balance between 3/0 & 5/0 ).
if possible plz suggest.