Table Of Contents
AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 Series, Cisco 3660, and Cisco 3700 Series
Contents
Prerequisites for AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
Restrictions for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
Information About the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 Feature
AIM-ATM
AIM-VOICE-30
AIM-ATM-VOICE-30
AIM Features
ATM Features
Voice DSP Features
Related Features and Technologies
Configuration Tasks
Configuring Network Clock Source and Participation
Configuring Clock Source Internal
Configuring Clock Source Line
Configuring AIM for ATM WAN Access
Configuring AIM for ATM WAN Access with IMA
Configuring AIM DSP Functionality for VoIP, VoATM, or VoFR
Verifying AIM Configuration
Troubleshooting Tips
Configuration Examples
ATM AIM for ATM with IMA Configuration Example
AIM DSP for VoIP Configuration Example
Additional References
Related Documents
Standards
MIBs
RFCs
Technical Assistance
Command Reference
clock source (T1/E1 controller)
dspfarm (voice-card)
mode (T1/E1 controller)
network-clock-participate
network-clock-select
voice-card
Glossary
AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 Series, Cisco 3660, and Cisco 3700 Series
This document describes configurations for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 series, the Cisco 3660, and the Cisco 3700 series.
The Cisco 2600 series has one internal slot for an AIM, and the Cisco 3660 and Cisco 3700 series have two. Three types of AIM provide components that provide the following ATM and voice processing services:
•
Segmentation and reassembly (SAR) of packets for ATM transport over a wide-area network (WAN), utilizing ATM Adaptation Layer 2 (AAL2) and AAL5 encapsulation and providing ATM WAN uplinks on up to four T1/E1 links
•Digital signal processing (DSP) for voice conversion, providing termination and processing of up to 30 voice channels per AIM
•Multiplexing over ATM (IMA), version 1.1. Version 1.1 is interoperable with Version 1.0.
Benefits of this feature include the following:
•Introduces Voice over ATM (VoATM) on the 2600
•Introduces VoAAL2 support on the Cisco 2600 series, Cisco 3660, and Cisco 3700 series
•Inexpensive ATM access
•Dedicated onboard AIM hardware-accelerated coprocessor, capable of supporting both AAL2 (ITU I.366.1/I363.2) and VoAAL5, which offloads the processor-intensive task of ATM cell segmentation and reassembly from the main router CPU.
•ATM WAN uplink option for Cisco 2600 series routers without using a network module slot
•AAL2 or AAL5 encapsulation for high quality of service (QoS) and a low-cost alternative to circuit-based services
•Efficient prioritization of mission-critical data provided by ATM's QoS
•Low-density T1 or E1 ATM option on an AIM form factor, providing a VoATM, Voice over IP (VoIP), or Voice over Frame Relay (VoFR) solution supporting up to four T1 or four E1s
•Inverse multiplexing over ATM (IMA) for connection of up to four T1s or E1s, for the most effective use of available slots
•No need for third-party IMA devices
•Migration path to higher bandwidth without the need to change transport facilities
•Highly competitive voice processing (termination) solution with AIM-VOICE-30 at a density of 30 VoIP, VoFR voice, or fax channels, while not consuming a network module slot
Feature Specifications for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 Series, Cisco 3660, and Cisco 3700 Series Feature
Feature History
|
|
Release
|
Modification
|
12.2(2)XA
|
The High-Performance ATM Advanced Integration Module (AIM-ATM) was introduced for support of AAL2 and AAL5 services on the Cisco 2600 series.
|
12.2(2)XB
|
The following capabilities were added to this feature:
•Support for the High-Performance ATM Advanced Integration Module (AIM-ATM) on the Cisco 3660
•Two new types of Advanced Integration Modules (AIMs):
–AIM-VOICE-30, which provides support for voice DSP services for the Cisco 2600 series and the Cisco 3660
–AIM-ATM-VOICE-30, which combines support for both ATM and voice DSP services for the Cisco 2600 series and the Cisco 3660
•Support for Inverse Multiplexing over ATM (IMA) for the Cisco 2600 series and Cisco 3660
•Support for Fast Ethernet network modules (NM-2W on the Cisco 2600 series, and NM-2W, NM-1FE2W, and NM-2FE2W on the Cisco 3660) with multiflex trunk Voice/WAN Interface Cards (VWICs) (VWIC-MFT)
|
12.2(8)T
|
This feature was integrated into Cisco IOS Release 12.2(8)T on the Cisco 2600 series and the Cisco 3660.
|
12.2(15)T
|
This feature was implemented on the Cisco 2691 and the Cisco 3700 series. New features were added. Refer to the Integrated Voice and Data WAN on T1/E1 Interfaces Using the AIM-ATM-VOICE-30 Module for information about new features used by this feature.
|
Supported Platforms
|
For platforms supported in Cisco IOS Release 12.2(15)T, consult Cisco Feature Navigator.
|
Finding Support Information for Platforms and Cisco IOS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.
Contents
•Prerequisites for AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
•Restrictions for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
•Information About the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 Feature
•Configuration Tasks
•Configuration Examples
•Additional References
•Command Reference
•Glossary
Prerequisites for AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
Cisco 2600 series
•Cisco IOS Release 12.2(2)XB IP Plus, Cisco IOS Release 12.2(8)T, or a later release
•64 MB RAM and 16 MB Flash memory
•Appropriate voice interface hardware, as listed in Table 1
•Voice over ATM, Voice over IP, or Voice over Frame Relay network. See the appropriate document from the "Related Documents" section.
Cisco 3660
•Cisco IOS Release 12.2(2)XB IP Plus, Cisco IOS Release 12.2(8)T, or a later release
•64 MB RAM and 16 MB Flash memory
•MIX module (MIX-3660-64) installed in the time-division multiplexing (TDM) slot on the motherboard
•Appropriate voice interface hardware as listed in Table 1
•Voice over ATM, Voice over IP, or Voice over Frame Relay network. See the appropriate document from the "Related Documents" section.
Cisco 3700 series
•Cisco IOS Release 12.2(13)T, or a later release
•64 MB RAM and 16 MB Flash memory
•Appropriate voice interface hardware as listed in Table 1
•Voice over ATM, Voice over IP, or Voice over Frame Relay network. See the appropriate document from the "Related Documents" section.
Restrictions for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30
•High-complexity codecs are not supported for DSP processing before Cisco IOS Release 12.2(15)T.
•Cisco 3660 routers must be configured with a multiservice interchange (MIX) module.
•On Cisco 2600 series routers, if some DSP functionality is used for one port, the remaining DSP functionality cannot be used on the other port.
•Frame Relay and ATM cannot be configured on two different ports of one WIC card in a Cisco 2600 WIC slot.
•AAL2 supports a permanent virtual circuit (PVC); AAL5 supports PVC and a switched virtual circuit (SVC). Note that voice is supported only on PVCs. The SVC support on AAL5 is for data only.
•Subcell multiplexing is defaulted and is not configurable.
•A maximum of four IMA groups can be configured on a Cisco 2600 series router with one AIM installed, or on a Cisco 3660 router with either one or two AIMs installed.
•IMA cannot be multiplexed across two different AIM-ATMs or AIM-ATM-VOICE-30s on a Cisco 3660.
•When using AIM-ATM, AIM-VOICE-30, or AIM-ATM-VOICE-30, the number of virtual path identifier (VPI) and virtual channel identifier (VCI) bits is 13. The VPI default is five bits with a range of 0 to 31; the VCI default is eight bits with a range of 1 to 255. A 100/200 permanent virtual circuit (PVC) is not possible, because the maximum number of bits for VPI/VCI is 13.
•An AIM-ATM-VOICE-30 can support a maximum of four interfaces (8 MB TDM stream from the AIM-ATM-VOICE-30). There cannot be, for instance, four ATM interfaces and two voice or DSP interfaces on a Cisco 2600. A Cisco 2600 series can have four ATM interfaces and zero voice interfaces, or it can have three ATM interfaces plus one voice interface.
•For variable-bit-rate, real-time (VBR-RT) traffic shaping, maximum burst size (MBS) is 255 cells.
•The lowest traffic shaping parameter supported is 32 kbps.
•VBR.3/CLP tagging is not supported.
•You cannot run software SAR and the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 Series, Cisco 3660, and Cisco 3700 Series feature on the same 8-port multi-rate OCn interface.
•Drop and Insert are not supported on the Cisco 2600 series.
•You must configure mode cas before configuring the controller for TCCS clear channel in Cisco IOS software images before Cisco IOS Release 12.2T.
•Memory requirements:
–Cisco 2650 and Cisco 2651 routers running a -js- image require a minimum of 128 MB DRAM when using AIM-VOICE-30 or AIM-ATM-VOICE-30 modules with NM-HDV-24 or NM-HDV-30 network modules.
–Cisco 2610, Cisco 2611, Cisco 2612, Cisco 2613, Cisco 2620, Cisco 2621, Cisco 2650, and Cisco 2651 routers running an -is- image require a minimum of 64 MB DRAM when using AIM-VOICE-30 or AIM-ATM-VOICE-30 modules with NM-HDV-24 or NM-HDV-30 network modules.
–For all other configurations, refer to the Memory Recommendations in the Platform Specific Information for Cisco IOS Release 12.2(15)T.
Information About the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 Feature
Before you configure the AIM-ATM, AIM-VOICE-30 or AIM-ATM-VOICE-30, you should understand the following concepts:
•AIM-ATM
•AIM-VOICE-30
•AIM-ATM-VOICE-30
•AIM Features
•ATM Features
•Voice DSP Features
AIM-ATM
The High-Performance ATM AIM enables voice and data traffic to be carried over ATM networks using AAL2 and AAL5 encapsulation when installed in the Cisco 2600 series, Cisco 3660, or Cisco 3700 series. If used in conjunction with a T1/E1 multiflex trunk voice/WAN interface card (VWIC-MFT) for circuit-mode data and frame-mode data over ATM infrastructures, ATM AIM supports up to four T1 or E1 WAN interfaces. These interfaces may be four independent links or four inverse IMA groups.
When using the voice DSP capability of a digital T1/E1 packet voice trunk network module (NM-HDV) and a T1/E1 multiflex trunk VWIC, ATM AIM supports as many as 30 channels of compressed voice over a T1/E1 trunk using AAL2 or AAL5. Analog VoATM is enabled with a voice/fax network module (NM-1V or NM-2V) and a voice interface card, which can support as many as four analog voice calls using AAL5. All voice interface cards are supported: FXS, FXO, Analog-DID, E&M, and BRI.
AIM-VOICE-30
The AIM-VOICE-30 is capable of supporting up to 30 voice or fax channels when used in a Cisco 2600 series, Cisco 3660, or Cisco 3700 series with one of the T1/E1 voice/WAN interface cards (such as VWIC-1T1). This AIM includes powerful DSPs that are used for a number of voice processing tasks such as voice compression and decompression, voice activity detection or silence suppression, and private branch exchange (PBX) or public switched telephone network (PSTN) signaling protocols.
By using the AIM-VOICE-30 in a Cisco 2600 series router, you can support VoIP or VoFR while leaving the router's network module slot open for other functions such as asynchronous or synchronous serial concentration. When used in combination with one of the various ATM network modules, VoATM or VoIP over ATM can be provisioned using AAL5 and Voice over AAL2 (VoAAL2).
AIM-ATM-VOICE-30
This card is a combined ATM and DSP AIM that supports VoATM, voice over IP (VoIP), and voice over Frame Relay (VoFR). It supports as many as four T1 or E1 trunks when installed in a Cisco 2600 series, Cisco 3660, or Cisco 3700 series.
This AIM is used in combination with one T1/E1 multiflex trunk interface (VWIC-MFT) to provide PBX or PSTN signaling protocols. It uses VoAAL2 (ITU I.366.1/I.363.2) and VoAAL5 and does not require use of a digital T1/E1 packet voice trunk network module. This AIM has an onboard ATM coprocessor for increased AAL2 and AAL5 performance, and for as many as four IMA groups, enabling fractional T3 or E3 bandwidth performance.
See Table 1 for a summary of capabilities and voice interface hardware for each platform.
AIM Features
General features for all three types of AIM include the following:
•One AIM can be installed on a Cisco 2600 series router, and up to two AIMs can be installed on a Cisco 3660 or Cisco 3700 series.
•Online insertion and removal (OIR) is supported for the network modules that interoperate with AIMs on the Cisco 3660 or Cisco 3700 series.
ATM Features
ATM features for AIM-ATM and AIM-ATM-VOICE-30 include the following:
•For Cisco 2600 series routers, up to four ATM ports using multiflex trunk VWICS located either in WIC slots or in network modules, such as Fast Ethernet network modules or digital T1/E1 packet voice trunk network modules
•For Cisco 3660 or Cisco 3700 series with two AIMs, up to eight ATM ports using multiflex trunk VWICS located in network modules, such as Fast Ethernet network modules or digital T1/E1 packet voice trunk network modules
•AAL5 and AAL2 services
•IMA 1.1 support for up to four IMA links per AIM
•Up to 1024 AAL5 VCs for data or voice features per AIM
•Up to 1024 AAL2 VCs with up to 255 subchannels each for voice per AIM
•Network clock management support for synchronization between the ATM network and a PBX or the PSTN
Voice DSP Features
Voice DSP features for AIM-VOICE-30 and AIM-ATM-VOICE-30 include the following:
•Voice AIMs support all the same signaling types that are normally supported on T1 and E1 lines connected to NM-HDV network modules
•Integration of complete network management (Simple Management Network Protocol [SNMP], Cisco Voice Manager [CVM], CiscoView)
•VoIP, VoFR, VoAAL5, and VoAAL2
•Voice over AAL5
–Cisco AAL5 switched-voice support
–VoIP over ATM
–Transparent Common Channel Signaling (T-CCS)
•Voice over AAL2
–Nonswitched VoAAL2 trunking support
–Voice compression with AAL2 for subcell multiplexing on multiple calls
–Transparent Common Channel Signaling (T-CCS)
•Medium complexity DSP firmware, including the following codecs: G.711 u-law, G.711 a-law, G.729a, G.729ab, G.726r16, G.726r24, G.726r32, clear channel, and fax-relay.
•Up to 30 simultaneous voice calls per AIM
•Up to 60 simultaneous voice calls using DSPs on digital T1/E1 packet voice trunk network modules
Figure 1 represents applications that require both data and voice, as well as T1 or E1 ATM connections. In this scenario, voice is transmitted over ATM using AAL2 protocol. Bandwidth efficiency is achieved by powerful DSPs driving a full range of codecs and subcell multiplexing. By using a digital T1 or E1 packet voice trunk network module (NM-HDV), this configuration supports up to 60 channels of compressed voice over a T1 or E1 ATM trunk. In this scenario, PBXs can be directly connected to the NM-HDV, allowing for VoIP, VoFR, or VoATM support. Data traffic over AAL5 can be combined with voice-specific traffic.
Figure 1 AIM-ATM Providing ATM and Network Module Providing Voice DSP
Figure 2 illustrates a router with a network module that is being used for services other than voice. Applications on this router are limited to 30 or fewer voice or fax channels. When an AIM-VOICE-30 is used in conjunction with a T1 or E1 voice/WAN interface (such as VWIC-1MFT-T1/E1), it can provide voice processing such as VoIP or VoFR in conjunction with a PBX within the branch office, leaving the network module slot open for other applications. Note that you cannot process the T1 or E1 voice on the same VWIC as the serial WAN connection. They have to use different VWICs.
Figure 2 AIM-VOICE-30 Providing DSP for Voice
Figure 3 depicts applications that require AAL5 or AAL2 support over T1 or E1 ATM connections. This configuration leaves the network module slot open for existing or future needs. In this example, the AIM-ATM-VOICE-30 combines all of the AIM features shown in Figure 1 and Figure 2, including support for up to 30 channels of compressed voice using AAL2 (ITU I.366.1/I.363.2) and VoAAL5 with the support of a T1/E1 voice/WAN interface (VWIC-1MFT-T1/E1) connected to a PBX, without requiring a digital T1/E1 packet voice trunk network module. In addition, the AIM-ATM-VOICE-30's SAR coprocessor functionality provides AAL2 and AAL5 performance and as many as four IMA groups, enabling fractional T3/E3 bandwidth performance.
Figure 3 AIM-ATM-VOICE-30 Providing ATM and DSP for Voice
Table 1 lists the applications and voice interfaces that can be used with the three types of AIM:
Table 1 AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 Applications
Application
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Platform
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AIM
|
Interface
|
1- to 4-port T1/E1 Data and Analog Voice over an ATM Network
|
Cisco 2600 series, Cisco 3660,1 and Cisco 3700 series
|
AIM-ATM
|
•Two-port voice interface card (VIC-2FXS) in a voice/fax network module (Any NM-1V or NM-2V card: FXS, FXO, E&M, DID, and BRI are supported)
•Multiflex trunk VWIC (VWIC-1MFT, for example)
|
1- to 4-port T1/E1 Data over an ATM Network
|
Cisco 2600 series, Cisco 3660, and Cisco 3700 series
|
AIM-ATM
|
Multiflex trunk VWIC (VWIC-1MFT, for example) in one of the following:
•WIC slot
•Digital T1/E1 packet voice trunk network module (NM-HDV)
•Fast Ethernet network module (NM-2W)
|
1- to 4-port T1/E1 Data over an ATM Network with IMA
|
Cisco 2600 series, Cisco 3660,1 and Cisco 3700 series
|
AIM-ATM
|
Multiflex trunk VWIC (VWIC-1MFT, for example) in one of the following:
•WIC slot (Cisco 2600 series only)
•Digital T1/E1 packet voice trunk network module (NM-HDV)
•Fast Ethernet network module (NM-2W)
|
1- to 4-port T1/E1 Data and Digital Voice over an ATM Network with IMA
|
Cisco 2600 series and Cisco 36601
|
AIM-ATM-VOICE-30
|
1- to 4-port T1/E1 Data and Digital Voice over an ATM Network
|
Cisco 2600 series, Cisco 3660, and Cisco 3700 series
|
AIM-ATM-VOICE-30
|
Multiflex trunk VWIC (VWIC-1MFT, for example) in one of the following:
•WIC slot
•Digital T1/E1 packet voice trunk network module (NM-HDV)
•Fast Ethernet network module (NM-2W)
|
1- to 4-port T1/E1 Data and Digital Voice over an ATM Network
|
Cisco 36601 and Cisco 3700 series
|
AIM-ATM-VOICE-30
|
Multiflex trunk VWIC (VWIC-1MFT, for example) in one of the following:
•Digital T1/E1 packet voice trunk network module (NM-HDV)
•Fast Ethernet network module (NM-2W, NM-1FE, or NM-2FE)
|
Digital Voice
|
Cisco 36601 and Cisco 3700 series
|
AIM-VOICE-30
|
Multiflex trunk VWIC (VWIC-1MFT, for example) in a Fast Ethernet network module (NM-2W, NM-1FE, or NM-2FE)
|
Digital Voice
|
Cisco 2600 series, Cisco 3660, and Cisco 3700 series
|
AIM-VOICE-30
|
Multiflex trunk VWIC (VWIC-1MFT, for example) in one of the following:
•WIC slot
•Fast Ethernet network module (NM-2W)
|
Related Features and Technologies
•Enhanced ITU-T Echo Cancellation
•Voice over IP
•Voice over ATM and Inverse Multiplexing over ATM
•Voice over Frame Relay
Configuration Tasks
See the following sections for configuration tasks for the AIM-ATM, AIM-VOICE-30, and AIM-ATM-VOICE-30 on the Cisco 2600 series, Cisco 3660, and Cisco 3700 series feature. Each task in the list indicates if the task is required or optional.
•Configuring Network Clock Source and Participation (Required for all AIMs)
•Configuring AIM for ATM WAN Access (Required for AIM-ATM or AIM-ATM-VOICE-30)
•Configuring AIM for ATM WAN Access with IMA (Optional for AIM-ATM or AIM-ATM-VOICE-30)
•Configuring AIM DSP Functionality for VoIP, VoATM, or VoFR (Required for AIM-VOICE-30 or AIM-ATM-VOICE-30)
Configuring Network Clock Source and Participation
Packet voice and video are sensitive to time delays. To prevent mismatches and data slips, you must synchronize data flows to a single clock source, known as the network clock. When a network clock is configured on a gateway, the router externally clocks one T1 or E1 port, and then passes that clock signal across the backplane to another T1 or E1 port on another WIC or network module slot. Use of a network clock on a gateway is configured by naming the network modules and interface cards that are participating in network clocking, and then selecting a port to act as the source of timing for the network clock.
The network clock provides timing from the source through the port to the AIM, and then out to all participating router slots. Cisco 2600 series routers support one internal AIM slot, and Cisco 3660 or Cisco 3700 series support two internal AIM slots. An AIM slot connects to both the main system bus and a secondary time-division multiplexing (TDM) bus running between network module slots and, on the Cisco 2600 series, to WAN interface card (WIC) slots.
Note The clock configuration commands discussed in this section apply to ATM trunks as well as to digital voice trunks.
Three commands configure network clocking: network-clock-participate, network-clock-select, and clock source (digital ports only).
The network-clock-participate command configures the specified router slot to take its clock from the network clock; that is, this command identifies the slots that get their timing from the AIM.
The network-clock-select command configures a port in one of the participating slots to be a source for the network clock, and assigns it a priority level. This command is repeated for each port that you want to act as a primary or backup source for the network clock.
If the network clock source must be derived from an external source, either from the PSTN or PBX clocks over trunk lines, use the network-clock-select command. The highest priority level indicates the port that you want to be the primary source of timing for the network clock. If the highest-priority port becomes unavailable, the second-highest priority level takes over automatically as the network clock, and so forth for the lower-priority levels. The clocking is provided to the AIM, which then provides it to participating slots in the router.
For digital voice ports, the clock source command in controller configuration mode configures the type of timing (internal or from the line) for each port that you designate as a primary source or backup for the network clock. This step does not apply to analog voice ports.
These commands allow maximum flexibility. For example, on a router with a multiflex trunk VWIC connected to an ATM network and a digital T1/E1 packet voice trunk network module connected to a PBX, you could set up network clocking in any of three ways:
•The multiflex trunk VWIC provides clocking to the AIM, which provides it to the digital T1/E1 packet voice trunk network module (that is, to the PBX).
•The digital T1/E1 packet voice trunk network module provides clocking to the AIM, which provides it to the multiflex trunk VWIC (that is, to the ATM network).
•The ATM network and the PBX run their own clocks, which are not necessarily synchronized. However, this scenario could result in poor voice quality.
For a detailed discussion of clock sources on individual ports, see "Clock Sources on Digital T1/E1 Voice Ports" in the "Configuring Voice Ports" chapter in the Cisco IOS Voice, Video, and Fax Configuration Guide, Release 12.2.
Note For analog ports using an AIM-ATM to process voice for ATM and AAL5, configure the network clock commands to select the controller port that is being used as the ATM trunk interface, so that the AIM-ATM is synchronized with the ATM network.
Configuring Clock Source Internal
If you are configuring a clock with an internal source, follow these steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. controller t1 slot/port
4. clock source {line [primary] | internal}
5. exit
6. network-clock-participate [slot slot | wic wic-slot | aim aim-slot-number]
7. exit
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables higher privilege levels, such as privileged EXEC mode.
•Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
Example:
Router(config)# controller t1 1/0
|
Enters controller configuration mode on the T1 or E1 controller on the selected slot and port.
|
Step 4
|
clock source {line [primary] | internal}
Example:
Router(config-controller)# clock source
internal
|
Specifies the source from which the PLL on this port derives its clocking, and if the source is from the line, whether this port is the primary source. The default is line.
•The primary keyword specifies that the PLL on this port derives its clocking from the external source to which the port is connected. This option also puts a second port, which is generally connected to the private branch exchange (PBX), into looped-time mode. Both ports are configured with line, but only the port connected to the external source is configured with primary.
•The internal keyword specifies that the clock is generated from the T1 or E1 controller internal PLL.
Note If you accept the default, the clock source configuration does not appear in the show running-config command output. Use the show controller command to display the current clock source for a port.
|
Step 5
|
exit
Example:
Router(config-controller)# exit
|
Returns to global configuration mode.
|
Step 6
|
network-clock-participate [slot slot-number |
wic wic-slot | aim aim-slot-number]
Example:
Router(config)# network-clock-participate wic 0
Example:
Router(config)# network-clock-participate slot
5
Example:
Router(config)# network-clock-participate wic 0
Example:
Router(config)# network-clock-participate aim 0
|
Allows the network module or VWIC in the specified slot to use the network clock for its timing.
•The keywords you select depend on the platform you are using. See the examples in the network-clock-participate command reference for more information.
|
Step 7
|
exit
Example:
Router(config)# exit
|
Exits global configuration mode and completes the network clock source and participation configuration.
|
Configuring Clock Source Line
If you are configuring a clock with a line source, follow these steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. controller t1 slot/port
4. clock source {line [primary] | internal}
5. mode atm aim
Or
mode cas
Or
ds0-group ds0-group timeslots timeslot-list type {e&m-immediate | e&m-delay | e&m-wink | fxs-ground-start | fxs-loop-start | fxo-ground-start | fxo-loop-start}
Or
pri-group timeslots timeslot-list
6. exit
7. network-clock-participate [slot slot | wic wic-slot | aim aim-slot-number]
8. network-clock-select priority {t1 | e1} slot/port
9. exit
DETAILED STEPS
| |
Command or Action
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables privileged EXEC mode.
•Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
Example:
Router(config)# controller t1 1/0
|
Enters controller configuration mode on the T1 or E1 controller on the selected slot and port.
|
Step 4
|
clock source {line [primary] | internal}
Example:
Router(config-controller)# clock source line
|
Specifies the source from which the PLL on this port derives its clocking, and if the source is from the line, whether this port is the primary source. The default is line.
•The primary keyword specifies that the PLL on this port derives its clocking from the external source to which the port is connected. This option also puts a second port, which is generally connected to the private branch exchange (PBX), into looped-time mode. Both ports are configured with line, but only the port connected to the external source is configured with primary.
•The internal keyword specifies that the clock is generated from the T1 or E1 controller internal PLL.
Note If you accept the default, the clock source configuration does not appear in the show running-config command output. Use the show controller command to display the current clock source for a port.
|
Step 5
|
mode atm [aim aim-slot-number]
Or
mode cas
Or
ds0-group ds0-group timeslots timeslot-list
type {e&m-immediate | e&m-delay | e&m-wink |
fxs-ground-start | fxs-loop-start |
fxo-ground-start | fxo-loop-start}
Or
pri-group timeslots timeslot-list
Example:
Router(config-controller)# mode atm aim
aim-slot-number
Example:
Router(config-controller)# mode cas
Example:
Router(config-controller)# ds0-group ds0-group timeslots timeslot-list type fxs-loop-start
Example:
Router(config-controller)# pri-group timeslots
timeslot-list
|
Specifies that the configuration on this controller is for ATM, using the AIM in the specified slot for ATM processing, and creates ATM interface 0.
•The aim-slot argument is the AIM slot number on the router chassis:
–Cisco 2600 series—0
–Cisco 3660 and Cisco 3700 series—0 or 1
Note The mode atm command without the aim keyword uses software to perform ATM SAR rather than the AIM. This is supported on Cisco 2600 series WIC slots only and is not supported on network module slots.
•If you are configuring CAS for PRI rather than ATM, use the mode cas command, which specifies CAS mode for software images before Cisco IOS Release 12.2(15)T.
–Required only for Cisco 2600 series routers when configuring the ds0-group command and using WIC slots; not used on the Cisco 3660 or on Cisco 2600 series routers using network modules.
•If you are configuring DS0 groups, use the ds0-group command, which defines the T1 or E1 channels for use by compressed voice calls and the signaling method that the router uses to connect to the private branch exchange (PBX) or central office (CO).
•If you are configuring PRI groups instead of DS0 groups, use the pri-group command, which specifies an ISDN PRI on a channelized T1 or E1 controller.
Note When configuring PRI groups, you must also configure the isdn switch-type command. Also, only one PRI group can be configured on a controller.
|
Step 6
|
exit
Example:
Router(config-controller)# exit
|
Exits controller configuration mode.
|
Step 7
|
network-clock-participate [slot slot-number |
wic wic-slot | aim aim-slot-number]
Example:
Router(config)# network-clock-participate wic 0
Example:
Router(config)# network-clock-participate slot
5
|
Allows the network module or VWIC in the specified slot to use the network clock for its timing.
•The keywords you select depend on the platform you are using. See the network-clock-participate command reference for more information.
|
Step 8
|
network-clock-select priority {t1 | e1}
slot/port
Example:
Router(config)# network-clock-select 1 e1 0/1
|
Specifies a port to be used as a timing source for the network clock and the priority level for the use of that port. The source that is given the highest priority is used first; if it becomes unavailable, the source with the second-highest priority is used, and so forth.
•This command is required if the clock source is from the line
•The priority argument selects the priority for the clock source (1 is highest priority).
•The t1 and e1 keywords specify the T1 or E1 ports.
•The slot argument represents the slot number that identifies the controller clock source.
–Cisco 2600 series and Cisco 2600XM—0 (built-in WIC slot) or 1 (network module slot).
–Cisco 3660—1 to 6
–Cisco 3725 and Cisco 3745—1 to 4.
•The port argument represents the port number that identifies the controller clock source. The range is from 0 to 3.
|
Step 9
|
exit
Example:
Router(config)# exit
|
Exits global configuration mode and completes the network clock source and participation configuration.
|
Configuring AIM for ATM WAN Access
For each controller that uses the ATM functionality of AIM-ATM or AIM-ATM-VOICE-30, the following must be configured:
•The AIM resources to be used—The mode atm command specifies the AIM to use for this controller.
•Voice over ATM, Voice over IP, or Voice over Frame Relay—See the appropriate document from the "Related Documents" section.
To configure a controller to use an AIM for ATM processing for Voice over ATM, complete these steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. controller {t1 | e1} slot/port
4. mode atm [aim aim-slot-number]
5. exit
DETAILED STEPS
| |
Command
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables higher privilege levels, such as privileged EXEC mode.
•Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
controller {t1 | e1} slot/port
Example:
Router(config)# controller t1 slot/port
|
Enters controller configuration mode.
The keywords and arguments are as follows:
•t1 | e1—The type of controller.
•slot/port—The backplane slot number and port number for the interface being configured.
|
Step 4
|
mode atm [aim aim-slot-number]
Example:
Router(config-controller)# mode atm aim
aim-slot-number
|
Specifies that the configuration on this controller is for ATM, using the AIM in the specified slot for ATM processing, and creates ATM interface 0.
aim-slot is the AIM slot number on the router chassis:
•Cisco 2600 series—0
•Cisco 3660 and Cisco 3700 series—0 or 1
Note The mode atm command without the aim keyword uses software to perform ATM SAR rather than the AIM. This is supported on Cisco 2600 series WIC slots only, and is not supported on network module slots.
|
Step 5
|
exit
Example:
Router(config-controller)# exit
|
Exits controller configuration mode.
|
Configuring AIM for ATM WAN Access with IMA
Inverse multiplexing over ATM allows you to aggregate multiple low-speed links into one larger virtual trunk, or IMA group, which appears to your ATM switch as one logical pipe. Configuration of IMA groups is described in the "Configuring Inverse Multiplexing over ATM" section of the "Configuring ATM" chapter of the Cisco IOS Wide-Area Networking Configuration Guide, Release 12.2.
When IMA is being configured on Cisco 2600 series and Cisco 3600 routers that use AIMs for ATM processing, the argument for atm slot-number in the interface command is different than when configuring ATM without an AIM. When using an AIM, the ATM slot number is always 0, because the ATM resources are on the AIM in the motherboard rather than on a network module. All other ATM IMA commands are the same as those described in the "Configuring ATM" chapter of the Cisco IOS Wide-Area Networking Configuration Guide, Release 12.2.
To configure the interface for ATM IMA using an AIM-ATM or AIM-ATM-VOICE-30, complete the following steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface atm slot-number/ima group-number
4. Configure IMA
5. exit
DETAILED STEPS
| |
Command
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables higher privilege levels, such as privileged EXEC mode.
•Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
interface atm slot-number/ima group-number
Example:
Router(config)# interface atm slot-number/ima
group-number
|
Enters interface configuration mode and specifies the slot location of the interface and IMA group number.
Note atm slot-number is always 0 when configuring IMA and using an AIM for ATM processing on Cisco 2600 series, Cisco 3660, and Cisco 3700 series routers. There are no changes to other ATM interface commands.
|
Step 4
|
Configure IMA.
|
Continue with the IMA configuration described in the "Configuring Inverse Multiplexing over ATM" section of the "Configuring ATM" chapter of the Cisco IOS Wide-Area Networking Configuration Guide, Release 12.2.
|
Step 5
|
exit
Example:
Router(config-if)# exit
|
Exits interface configuration mode.
|
Configuring AIM DSP Functionality for VoIP, VoATM, or VoFR
For each controller that uses the DSP functionality of the AIM-VOICE-30 or AIM-ATM-VOICE-30, the following must be configured:
•The AIM DSP resources to be used—Use the dspfarm command in voice-card configuration mode assign resources.
•The controller mode to be used (only for Cisco 2600 series using WIC slots)—Use the mode cas command to specify that channel-associated signaling is used for this controller.
•Voice over ATM, Voice over IP, or Voice over Frame Relay—See the appropriate document from the "Related Documents" section.
DSPs contain specialized electronics to handle the complex computational processing needed for VoIP, such as compression, coding, and decoding. The number of DSP resources required on a router depends on the codec complexity and number of time slots you are using.
Previously, DSP resources required for voice processing had to be present on the same network module with the voice port. The dspfarm command now allows the DSP resources on an AIM-VOICE-30 or AIM-ATM-VOICE-30 to be mapped to a T1 or E1 connection housed in a network module or Cisco 2600 series WIC slot with no local DSPs.
Configure the use of AIM DSP resources by completing these steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. voice-card slot
4. dspfarm
5. exit
6. controller {t1 | e1} slot/port
7. mode cas
8. ds0-group ds0-group timeslots timeslot-list type {e&m-immediate | e&m-delay | e&m-wink | fxs-ground-start | fxs-loop-start | fxo-ground-start | fxo-loop-start}
Or
9. pri-group timeslots timeslot-list
10. exit
DETAILED STEPS
| |
Command
|
Purpose
|
Step 1
|
enable
Example:
Router> enable
|
Enables higher privilege levels, such as privileged EXEC mode.
•Enter your password if prompted.
|
Step 2
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode.
|
Step 3
|
voice-card slot
Example:
Router(config)# voice-card slot
|
Enters voice-card configuration mode to configure DSP resources on the specified card.
slot is the AIM slot number on the router chassis:
•Cisco 2600 series—0 for the AIM slot, 1 for the network module slot
•Cisco 2691—0 or 2
•Cisco 3660—7 is AIM slot 0, and 8 is AIM slot 1
•Cisco 3725—3 or 4
•Cisco 3745—5 or 6
|
Step 4
|
dspfarm
Example:
Router(config-voicecard)# dspfarm
|
(Optional) Enters the DSP resources on the AIM specified in the voice-card command into the DSP resource pool.
|
Step 5
|
exit
Example:
Router(config-voicecard)# exit
|
Exits voice-card configuration mode.
|
Step 6
|
controller {t1 | e1} slot/port
Example:
Router(config)# controller {t1 | e1} slot/port
|
Enters controller configuration mode.
The keywords and arguments are as follows:
•t1 | e1—The type of controller.
•slot/port—The backplane slot number and port number for the interface being configured.
|
Step 7
|
mode cas
Example:
Router(config-controller)# mode cas
|
Specifies CAS mode for software images before Cisco IOS Release 12.2(15)T.
•Required only for Cisco 2600 series routers when configuring the ds0-group command and using WIC slots; not used on the Cisco 3660 or on Cisco 2600 series routers using network modules.
•Use the mode ccs command for PRI configurations.
|
Step 8
|
ds0-group ds0-group timeslots timeslot-list type
{e&m-immediate | e&m-delay | e&m-wink |
fxs-ground-start | fxs-loop-start | fxo-ground-start |
fxo-loop-start}
Example:
Router(config-controller)# ds0-group ds0-group timeslots timeslot-list type fxs-loop-start
Or
Router(config-controller)# pri-group timeslots
timeslot-list
Example:
Router(config-controller)# pri-group timeslots
timeslot-list
|
Defines the T1 or E1 channels for use by compressed voice calls and the signaling method that the router uses to connect to the private branch exchange (PBX) or central office (CO).
Or
Specifies an ISDN Primary Rate Interface (PRI) on a channelized T1 or E1 controller.
Note When configuring PRI groups, you must also configure the isdn switch-type command. Also, only one PRI group can be configured on a controller.
|
Step 9
|
exit
Example:
Router(config-controller)# exit
|
Exits controller configuration mode.
|
Verifying AIM Configuration
Use the following commands to verify your software configuration:
•Verify the running configuration with the show running-config command.
•Verify controller information to verify the clock source configuration with the show controller command.
•Verify the current chosen clock and the list of all sources of network clocks according to their priority with the show network-clock command:
Router# show network-clocks
Network Clock Configuration
---------------------------
Priority Clock Source Clock State Clock Type
