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DC3.0 only use set Frequencys ..

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ckgth
DC3.0 only use set Frequencys ..

Hello,

i will set the DS Frequencys on CM-Configfile with:
ChannelAssignmentConfig
{
CaReceive 145000000;
CaReceive 153000000;
}

but the CMTS sets all times all 8 DS Channels to CM. The CM uses ever all DS-Frequencys. Why?
The CMTS is an Arris C4.

thank you
Christian

cmcaldas
cm file / config

your modem config file with the set downstream frequency would be used more so if you had two bonding groups.
example, 8 channel bonding, a bunch of video channels and then another group of 8 channel bonding. if you wanted a modem to use the 1st group of 8 channels, you would configure the modem file for a frequency on the 1st group. if you wanted the modem on the 2nd or higher group of 8 channels, then you would use a frequency from the higher group.
an I to understand you only want a modem to use one or two frequencies instead of all 8?
in your config of the C4, you will see cable fiber-node. that is the number of channels/frequencies your setup to bond downstream and upstream. what tells the modems what's available for them to bond with

ckgth
o.. i understand.

o.. i understand.
i set frequency from the 1st fiber-node, than the CM use this fiber-node. I set frequency from the 2st fiber-node, then the CM use this bonding. But what is, when the CM should use both bonding-(fiber)-groups?
can i set firm the usable frequencys from the bonding-group? Thats, what i will make. only the setted frequencys in CM config file should be used.

mbowe
If I wanted to limit

If I wanted to limit particular modems to a subset of the available downstream channels, I would create a bonding group for each such subset. Then I would add an attribute mask on these bonding groups. Then I would edit the CM config files and use CMDownstreamRequiredAttributeMask to force the CM to use that group.
More info here https://docsis.org/node/2337

ckgth
o.k. currently i use dynamic

o.k. currently i use dynamic bonding groups.
Now is will set cable fiber node with DS 13/0 13/1 13/2 13/3 13/4 13/5 13/6 13/7
and set bonding groups with attr mask 0x00000000 to manual Bonding group 1 (13/0-3) and attr mask 0x00000011 to manual to bonding group 2 (13/4-7)
then i will set the Attr Mask in CM Config File.
Questions:
- can i set 13/4-7 as no primary capable? (manual setted CM's should use both bonding groups (all channels 13/0-7)
- can i set all DS in one Fiber-node?
-on my C4 there is currently in DS Channel Config attr-mask 0x00000000, is this 0x80000000? What's the difference?
- must i set the attr-mask also on each DS Channel or only in Bonding-group?

thank you
Christian

ckgth
subset bonding will not work

Hello,

i have set on CMTS:

C4_C1# show interface cable-downstream 12/0
Downstream Channel 12/0
---------------
Channel State: IS
Connector: 0
Channel-ID: 1
Cable-Mac: 4
Primary-Capable: True
Upstream Channels: 3/0-1
Cable Standard: Annex A from ITU-J83
Frequency (Hz): 346000000
Interleave depth (no of taps): 12
Modulation: q256
Provisioned Power (tenth of dBmV): 490
Measured Power (tenth of dBmV): 490
Power Fine Adjustment (steps): 0
Max Round Trip Delay(microseconds): 1600
Load Balance Group Id: 41945088
Max Allowable Normal Voice BW (%): 50
Reserved Normal Voice BW (%): 0
Max Allowable Emergency Voice BW (%): 70
Reserved Emergency Voice BW (%): 0
Max Allowed Total (Emergency + Normal) (%): 70
Emergency Preemption: enabled
Token Bucket Mode: shape
Automatic Gain Control: enabled
Attribute Mask: 0x00000000

C4_C1# show interface cable-downstream 12/8
Downstream Channel 12/8
---------------
Channel State: IS
Connector: 1
Channel-ID: 9
Cable-Mac: 4
Primary-Capable: True
Upstream Channels: 3/0-1
Cable Standard: Annex A from ITU-J83
Frequency (Hz): 706000000
Interleave depth (no of taps): 12
Modulation: q256
Provisioned Power (tenth of dBmV): 490
Measured Power (tenth of dBmV): 483
Power Fine Adjustment (steps): 0
Max Round Trip Delay(microseconds): 1600
Load Balance Group Id: 41945088
Max Allowable Normal Voice BW (%): 50
Reserved Normal Voice BW (%): 0
Max Allowable Emergency Voice BW (%): 70
Reserved Emergency Voice BW (%): 0
Max Allowed Total (Emergency + Normal) (%): 70
Emergency Preemption: enabled
Token Bucket Mode: shape
Automatic Gain Control: enabled
Attribute Mask: 0x00000002

Cable mDSsg/
-mac chSetId mUSsg CfgId AttrMask
----- ---------- ------- ------- ----------
1 0x0100001e D1 dynamic ---
1 0x010002e1 D1 dynamic ---
1 0x010002e9 D1 dynamic ---
1 0x010002ea D1 dynamic ---
1 0x0100030f D1 dynamic ---
1 0x01000010 U5 dynamic ---
1 0x01000011 U4 dynamic ---
1 0x01000012 U1 dynamic ---
1 0x01000016 U6 dynamic ---
1 0x01000024 U2 dynamic ---
1 0x01000028 U3 dynamic ---
2 0x01000002 D1 dynamic ---
2 0x0100000a U1 dynamic ---
2 0x01000016 U4 dynamic ---
2 0x01000024 U2 dynamic ---
2 0x01000025 U3 dynamic ---
3 0x0100000d D1 dynamic ---
3 0x0100000e D1 dynamic ---
3 0x01000014 D1 dynamic ---
3 0x0100001c D1 dynamic ---
3 0x0100001e D1 dynamic ---
3 0x0100002c D1 dynamic ---
3 0x01000006 U3 dynamic ---
3 0x01000007 U1 dynamic ---
3 0x01000008 U4 dynamic ---
3 0x01000009 U2 dynamic ---
4 0x01000001 D-inv 1 0x80000000
4 0x01000002 D-inv 2 0x80000002
4 0x01000008 U1 dynamic ---

(MAC 4 is the test-Mac).

C4_C1# show cable fiber-node
Cable mDSsg/
Fiber Node MAC mCMsg mUSsg Channels
---------------- ----- ----- ------ --------------------
FN2 1 1 D1 15/0-7
FN2 1 1 U1 0/3-5
FN4 1 2 D1 15/0-7
FN4 1 2 U2 0/12-14
FKH1 1 3 D1 15/0-7
FKH1 1 3 U3 0/6-8
FKH2 1 4 D1 15/0-7
FKH2 1 4 U4 0/9-11
GRFD1 1 5 D1 15/0-7
GRFD1 1 5 U5 0/15-17
GRFD2 1 6 D1 15/0-7
GRFD2 1 6 U6 0/18-20
MAC1-1 1 2 D1 15/0-7
MAC1-1 1 2 U2 0/12-14
MAC2-1 2 1 D1 14/12-19
MAC2-1 2 1 U1 2/0-2
MAC2-2 2 2 D1 14/12-19
MAC2-2 2 2 U2 2/3-5
MAC2-3 2 3 D1 14/12-19
MAC2-3 2 3 U3 2/6-8
MAC2-4 2 4 D1 14/12-19
MAC2-4 2 4 U4 2/9-11
MAC3-1 3 1 D1 14/8-11,24-27
MAC3-1 3 1 U1 1/0-2
MAC3-2 3 2 D1 14/8-11,24-27
MAC3-2 3 2 U2 1/3-5
MAC3-3 3 3 D1 14/8-11,24-27
MAC3-3 3 3 U3 1/6-8
MAC3-4 3 4 D1 14/8-11,24-27
MAC3-4 3 4 U4 1/9-11
MAC4-1 4 1 D1 12/0-1,8-10
MAC4-1 4 1 U1 3/0-1

on CM Configfile:
VendorSpecific
{
CMAttributeMasks
{
CMDownstreamRequiredAttributeMask 0x80000000;
CMDownstreamForbiddenAttributeMask 0x80000002;
}
}

But the CM comes all time online on 12/0, also when i set "CMDownstreamForbiddenAttributeMask 0x80000000;" in CM Configfile.

Why?
I only need, that the CM not use the high frequency channels... 12/8-11,24-27, only then i enable attr-mask.

have you any suggestions?
thank you
Christian