We currently have a 2811 router with two 2 port T1 WICs. These are configured in a single IMA group as a 6Mb internet circuit.
We would like to double our capacity by adding two more 2 port T1 WICs. From my reading, we can't create an IMA group that has more than 4 T1s. The Cisco documentation says that "two ATM AIMS can be used for 8xT1 IMA, but they must be configured as two 4xT1 IMA groups."
How does this work, and is there a configuration that would allow us to use 12Mbs? Our internet provider doesn't think they can make it work on this router. Are we looking at having to upgrade the router, or is there a configuration that would let us bond the two IMA groups? Would we have to have our provider give us two bundles of 4 T1s, each bundle having a separate external IP address?
If it's possible to make this work, do you have a sample of how that might look?
Sorry for all the questions, and many thanks in advance for any advice/help.
"Two ATM AIMs can be used for 8X T1 IMA, but they must be configured as two 4X T1 IMA groups."