Inverse multiplexing over ATM

[Ivan.nicc]

I’m looking to purchase a 2811 or 2821 router, previously I had a 2611 with the modules AIM-ATM and NM−4T1−IMA, according to this link http://www.cisco.com/en/US/products/ps5854/products_qanda_item0900aecd80169bd6.shtml both these modules are not compatible with the 2800 series, what modules should I then be getting in order to perform IMA?

The 2800 series is touted as having advanced IDS, Firewall, content filtering(optional module NM-CE) and antivirus capabilities with the latest IOS. There is, however, an optional module, the NM-CIDS-K9, that specifically offers a comprehensive firewall/IDS/AV solution. How do they differ in functionality, the IOS security module vs the hardware module?

Another thing. What about QoS, traffic shaping/bandwidth management and P2P filtering? Does the standard IOS have such capabilities?

[mchin345]

In the transmit direction, the ATM cell stream received from the ATM layer is distributed on a cell by cell basis across the multiple links within the IMA group. At the far-end, the receiving IMA unit reassembles the cells from each link on a cell-by-cell basis and recreates the original ATM cell stream. The image below displays how cell streams are transmitted across multiple interfaces and recombined to form the original cell stream. The receiving interface discards the ICP cells, and the aggregate.

http://www.cisco.com/en/US/tech/tk39/tk356/technologies_q_and_a_item09186a0080111162.shtml#Q3