[c-ubr] Connect multiple upstreams of a single optical node with the same downstream

[Adeel Ahmed]

Hello Yann,

You are probably looking for the Cable Load Balancing
feature which can evenly distribute CMs across
multiple upstreams statically (at registration time)
or dynamically (based on interface load).

Please take a look at the following link and see if it
helps you out:

http://www.cisco.com/en/US/partner/products/hw/cable/ps2217/products_feature_guide09186a00801b17f2.html

Unfortunately this feature is only supported on the
uBR7246VXR and uBR10012 CMTSs, not the uBR7100.

By the way, if you want to do this statically via the
DOCSIS configuration file you can use the "Upstream
Channel ID" field in the configurator to assign CMs to
a particular upstream port. But this does not scale
too well.

Kind Regards,
Adeel.

--- Yann GAUTERON <yann.gauteron at net2000.ch> wrote:
> Dear all,
> 
> I am trying in a lab with a Cisco uBR-7114 router to
> assign to an HFC 
> node one downstream and two upstreams (on different
> frequencies). My 
> wish was that with such a configuration the CMTS
> would assign every 2 CM 
> on one upstream (upstream 0) and every 2 other CM on
> the second upstream 
> (upstream 1).
> 
> After trials in my lab, I have no success. Do you
> know if this Cisco uBR 
> can support such a fonctionality ? If yes, do you
> have an idea how to 
> configure it in order to dynamically assign one
> upstream (or one 
> frequency, if you prefer) to a modem at the
> initialization phase ?
> 
> Last question: Would I have the same problem, if I
> were using uBR7206 
> routers (with MC16C or MC28S cards) ?
> 
> I know it is easy to do it with two different
> downstreams with a config 
> file assigning the modem one or the other
> downstream, but I can not 
> realize my idea with one downstream and two
> upstreams.
> 
> Thank you for your answers,
> Yann Gauteron
> _______________________________________________
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> cisco-ubr at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-ubr
> 


		
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