[nsp] 7206 NPE-200 with PA-A3-8T1IMA for DSL aggregation problems

[Siva Valliappan]

you probably want to move away from an IRB style configuration to an
RBE mode of configuration which is much more higher performing.  not
sure of your specific problem, but the recommended solution for
aggregation of bridged DSL ATM customers is RBE, and this is the more
intensely tested solution.

for more information you can take a look at:

http://www.cisco.com/en/US/tech/tk175/tk15/technologies_configuration_example09186a0080093e43.shtml

it also gives you support for multiple DHCP extensions.  including typing
RBE interface to provide Option 82 support so that you can limit the
number of IP addresses that are given out to each interface, etc.

cheers
.siva

On Wed, 23 Apr 2003, Denise Sandell wrote:

>
> Greetings:
>
> I'm experiencing problems with this configuration for DSL aggregation,
> and was hoping for some advice:
>
> 7206 NPE-200 w/64MB RAM, PA-A3-8T1IMA running 12.2(16)
>
> First of all, 12.2(16) is quite the ram-hog, so I'm running with ~3MB
> free memory.  Previous to running 16, I was running 12.2(13), which
> had its own set of issues (like random reloading when configuring
> BVIs), yet it ran with ~10MB free.
>
> This router is aggregating DSL customers on 2 ATM T1s (no IMA group
> configured), using IRB, and I'm running into problems where they're
> intermittently unable to pass traffic over the BVIs.  There are
> approximately 120 customers terminated to this router with about ~25 BVIs
> configured.  This does not seem to affect other traffic on the router at
> all, other interfaces tx/rx normally.
>
> The questions I have are:
>
> . Has anyone else run into this problem?
> . Will upgrading to 128MB fix the problem?
> . Are there other suggested images to run (12.0 or 12.2 track) for
>   such a configuration before attempting to upgrade memory?
>
> Any suggestions would be appreciated!
>
> --
> - Denise Sandell                                 network operations -
> - dsandell at voyager.net              voyager.net, a CoreComm company -
>
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