This document will give you a brief idea about AIM and its important features with concentration on ATM (not voice). Also, it will give you information about which IOS you need to run in order get support and which routers supports it.
For more information on document conventions, see the Cisco Technical Tips Conventions.
The information below shows the minimum Cisco IOS® requirements for the AIM modules to be recognized in the various platforms.
Note: Minimum feature set required: Cisco IOS "Plus".
Cisco 2600 Series, 3660
Cisco 2691, 3700 Series
This document is not restricted to specific software and hardware versions.
The information presented in this document was created from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.
The AIM modules support the following platforms:
Cisco 2610-2613, 2620, 2621, 2650, 2651, 2610XM, 2611XM, 2620XM, 2621XM, 2650XM, 2651XM, 2691
Cisco 3661, 3662, 3725, 3745
The following shows the number of AIM modules that can be installed in the different platforms.
Number of AIM modules per 2600 router (except 2691: One
Number of AIM modules per 2691, 3660, or 3700 Series router: Two
Maximum number of ATM T1/E1s supported: Up to 4 ATM T1/E1's per AIM-ATM or AIM-ATM-VOICE-30
Minimum feature set required: Cisco IOS “ Plus “
Some important features of AIM-ATM and AIM-ATM-VOICE 30 include, but are not limited to, the following:
ATM SAR capability in hardware
ATM class of service (CoS) features CBR, VBR-nrt, VBR-rt, ABR, and UBR
Supports the following QoS features:
Low-Latency Queuing (LLQ)
Class-Based Weighted Fair Queuing (CBWFQ)
Per-virtual circuit queuing
Pre-ATM VC shaping for non real-time variable bit rate (VBR-nrt)
Resource Reservation Protocol (RSVP)
IP CoS map to ATM QoS services
Compressed Real-Time Protocol (CRTP) (over Point-to-Point/Multilink over ATM)
LAN Emulation 2.0 Client and Server
Per VC queuing for segmentation
Support for up to 1024 AAL5 VCs for data/voice features
Support for up to1024 AAL2 VCs with up to 255 subchannels each for voice per AIM
The Cisco 2600 Series, Cisco 3660, and Cisco 3700 Series multiservice access routers provide enterprises and service providers a wide range of solutions for data, voice, and video. These routers are equipped with an Advanced Integration Module (AIM) slot, which provides customers the flexibility to deploy additional features. There are three flavors of AIM module. They are
With AIM-ATM or AIM-ATM-VOICE-30 module installed, you can install VWIC MFT cards in to those slots. By configuring T1 controllers, you can make it to act like a regular ATM interface. Thus it can offer ATM adaptation layer 2 (AAL2) and ATM adaptation layer 5 (AAL5) support for low-density T1/E1 data and voice connections over ATM networks. AIM module allows service providers and enterprise customers to take advantage of the reliability and quality of service (QoS) available with ATM connectivity.
The following is a sample configuration.
Enter configuration commands, one per line. End with CNTL/Z.
r06(config)#controller t1 0/1
r06#sh int atm0/1
ATM0/1 is up, line protocol is down
Hardware is ATM T1
MTU 4470 bytes, sub MTU 4470, BW 1536 Kbit, DLY 20000 usec,
reliability 0/255, txload 1/255, rxload 1/255
Encapsulation ATM, loopback not set
255 maximum active VCs, 256 VCs per VP, 0 current VCCs
VC idle disconnect time: 300 seconds
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/0/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1152 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
By default, AIM-ATM or AIM-ATM-VOICE-30 modules support 5 bits for VPI ( 0-31 ) and 8 bits for VCI (0-255 ). However, VPI and VCI can be altered as required using the command “ atm vc-per-vp “ under the ATM interface.