MLPPP no traffic when 2nd link is active

[gilbera]

Hi

I have a cisco 1821 with 2 ADSL WIC and i am trying to do MLPPP to a Redback BRAS.

I have attached my config, the problem i have is when the sencond link come into action i cannot pass any traffic down the link thats over 52bytes.

If i ping below 52byes its fine anything above and it timesout.

Any ideas, it driving me crazy.

Andy

[paul.werner]

Given that 52 bytes is remarkably close to the maximum ATM cell size (including headers), I am wondering if there is some sort of cell segmentation and reassembly problem occuring here, or possibly CRC issues?

See if this might help:

http://www.cisco.com/warp/public/121/crc_tshooting.html

pw