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8 channels bonding on MC20x20V - anybody get it worked ???

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Is 8 channels bonding supported on UBR10K with MC20x20V ?
Could you please share wroking config ?

I have ubr10K with MC20x20V

We run D2 modems, 4x4 D3 modems, 8x4 D3 modems

(We've stopped buying 4x4 modems now as 8x4 are just as cheap)

Our config is to split the 20x20 card into 4 service areas, with 4 primary DS (1 DS connector) per service area

5th DS connector is then spanned across all 4 service areas

So D2 modem will lock onto 1st (of 4) visible downstreams, and CMTS will use load balance to move modem to one of the other 3 DS if needed

4x4 D3 modem will lock onto all 4 primary DS. Access the internet, but cant access our IPTV.

8x4 modem has multiple bonded groups.
First is 8 way which includes the 4 primary DS plus 4 spanned DS (used for Internet)
Second is 4 way spanned DS (used to IPTV)

So the spanned downstreams primarily are used for carrying IPTV, but any spare capacity is then available for 8x4 modems to use for Internet