Chapter 7: Configuring the MC3810 for Voice over ATM 7-1 Copyright © 1998, Cisco Systems, Inc.

7-2CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Objectives Describe VoATM software and WAN trunk interfaces of the MC3810 List the Cisco IOS commands specific to configuring the MC3810 for VoATM Configure an MC3810 for VoATM using Cisco IOS software so students can connect and optimize their own VoATM enterprise branch offices

7-3CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Objectives (cont.) Configure the MC3810 WAN services, ATM voice port interfaces, and dial- peers using Cisco IOS software so a phone call can be successfully completed between two MC3810s Configure the MC3810 as a channel bank using the MC3810s advanced functionality

7-4CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Introduction to ATM ATM Cells Voice Data Video PBX

7-5CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. ATM Service Classes: CBR, VBR, ABR, UBR CBRCBR VBRVBR ABRABR UBRUBR Real-Time: Variable bit rate (VBR): Compressed voice with silence suppressionProprietary now, standards in process Constant bit rate (CBR): Circuit emulation Nonreal-Time: Unspecified bit rate (UBR): Best effort Available bit rate (ABR): Best for bursty data transport (guaranteed thruput +)

7-6CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. ATM Bandwidth Allocation Bandwidth Cisco ATM Switch 2n n n LAN Voice Video Q Cells Voice Data CircuitEmulation CBR ABR VBR Unused Time

7-7CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Creating ATM Cells Dest. Address Source Address Data Frame Check PayloadHeader Information Cells PayloadHeader PayloadHeader PayloadHeader 5 Byte Header 48 Byte Payload ATM Cell 53 Bytes

7-8CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. VoATMMinimizing Delay and Delay Variation Quality of service (QoS) Virtual circuit (VC) queuing Small fixed-size cells

7-9CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. MC3810 Voice over ATM Hardware

7-10CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. MC3810 VoATM Introduction ISP ATM T1/E1 ATM T1/E1 Headquarters T1/E1 Digital voice Regional Office PSTN Cisco MC3810 ATM Video Analog voice or VC1512k VBRnrt; LAN Data VC2256k VBRrt; 24 Voice Calls VC3768k CBR; Video VC4VC8 80k CBR; Voice Circuits

Multiflex Trunk (MFT) 7-11 Copyright © 1998, Cisco Systems, Inc.

7-12CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Multiflex Trunk (MFT) Is Port S2 MC3810 PBX, Key Set, or Phones The Multiflex Trunk (MFT) is S2 (Serial Port 2) T1/E1 Trunk ATM Ch Ch. 24/32

7-13CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. ATM Operating Mode DS0 Time Slots From MC3810's Multiflex Trunk Module (ATM Operating Mode) To Carrier's ATM Services 24 or 30 DS0s used for T1/E1 ATM

7-14CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Voice in ATM Encapsulation Length in Octets Voice/Fax Payload Voice/fax Header Pad ATM: 53 bytes ATM hdr Direct Encapsulation Fields FRF.11 HeaderProprietary 1 octet3 octets

7-15CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. MC3810 Fixed Prioritization Trunk Output Real-Time Queues Cisco IOS Queuing CES (video) rt-VBR (voice) Data from Router Data Stream A Data Stream B Data Stream C Nonreal-Time Queues

MC3810 ATM Software Support 7-16 Copyright © 1998, Cisco Systems, Inc.

7-17CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Cisco IOS Software Support Cisco IOS Release 11.3 (first release to support 3810) ATM UNI CBR, VBR, rtVBR IBM features

7-18CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. MC3810 Standards Support ATM Support ATM Forum af-phy DS1 Physical Layer Specification ATM Forum af-phy E-1 Physical Layer Specification ATM Forum af-saa Circuit Emulation ATM Forum af-uni UNI Signaling 3.1 IETF RFC1483Multiprotocol over ATM IETF RFC1577IP over ATM IETF RFC1695AToM MIB ANSI T1.630, ITU I.363, I.363.1ATM AAL 1 (Constant Bit Rate) ANSI T1.635, ITU I.363.5ATM AAL 5 (Variable Bit Rate)

7-19CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Network Management Software Cisco command-line interface (CLI) All system configuration commands CiscoView CiscoWorks Extensive MIB support HTML interface

MC3810 Cisco IOS Commands for VoATM 7-20 Copyright © 1998, Cisco Systems, Inc.

7-21CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. MFT Controller Commands router(config)# controller {t1 | e1}number router(config)#controller { t1 | e1 } number router(config-controller)# descriptionline router(config-controller)#description line Identifies the controller clock source for a DS1 link Enters a description of the controller Identifies whether your controller is T1 or E1, and the number router(config-controller)#clock source { internal | line | loop-timed }

7-22CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. router(config-controller)#cablelength short { 133 | 266 | 399 | 533 | 655 } Sets parameters if the cable is longer than 655 feet Sets the DS1 link framing format router(config-controller)#cablelength long { gain26 | gain36 } { -15db | -22.5db | -7.5db | 0db } router(config-controller)#cablelength long { gain26 | gain36 } { -15db | -22.5db | -7.5db | 0db } For cable lengths shorter than 655 feet router(config-controller)#framing { sf | esf } router(config-controller)#linecode { ami | b8zs } Sets the line encoding format for DS1 T1 Controller Settings

7-23CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. E1 Controller Settings router(config-controller)#framing { crc4 | no-crc4 } [ name ] Sets the line encoding format Sets the E1 frame format router(config-controller)#linecode { ami | hdb3 }

7-24CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Channel Associated Signaling Sets CAS support for the T1/E1 link Configures a list of time slots to form a CAS group for the T1/E1 router(config-controller)#mode cas router(config-controller-cas)#voice-group channel-no timeslots timeslot-list type

7-25CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Preliminary VoATM Commands router(config)#interface serial 2 Sets the encapsulation mode Enter config mode and set the ATM interface, serial port 2 (S2) router(config-if)#encapsulation atm router(config-if)#atm pvc vcd vpi vci aal-encap [ peak average [ burst ]] [ inarp [ minutes ]] [ oam [ seconds ]] [ compress ] Configures a PVC to support voice encapsulation aal5voice

7-26CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Cisco IOS Parameters for Creating ATM PVCs vcd vpi vci aal-encap peak average burst inarp [minutes] oam [seconds] compress

MC3810 VoATM Network Examples 7-27 Copyright © 1998, Cisco Systems, Inc.

7-28CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Example: MC3810 VoATM Network Cisco MC3810 x51111 x /1 1/2 VCD 20 ATM VCD 40 1/1 Serial port 2 Serial port 2 Cisco MC3910 x73333 x75555 x74444 PBX n = Dial peer tag

7-29CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Example: Outgoing Call from Dial Peer 1 Cisco MC Voice port 1/1 VCD 20 ATM cloud Cisco MC SourceDestination Voice port 1/1 dial-peer voice 1 pots destination pattern port 1/1 dial-peer voice 2 voatm destination pattern session target S2 20 dial-peer voice 3 pots destination pattern port 1/1

7-30CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Example: Outgoing Call from Dial Peer 2 Cisco MC Voice port 1/1 VCD 40 ATM cloud Cisco MC DestinationSource Voice port 1/1 dial-peer voice 1 pots destination pattern port 1/1 dial-peer voice 4 voatm destination pattern session target S2 40 dial-peer voice 3 pots destination pattern port 1/1

7-31CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Example: Dial Peers on the Same MC3810 Destination Cisco MC Voice port 1/1 VCD 20 ATM cloud Source dial-peer voice 1 pots destination pattern port 1/1 Dial-peer Dial-peer 1 dial-peer voice 3 pots destination pattern port 1/2 1/2

7-32CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. dial-peer voice 3 pots destination-pattern port 1/1 dial-peer voice 4 voatm destination-pattern session target Serial2 100 Cisco IOS Configuration on R2 VoATM Session Target and Destination Pattern R1 R2 (408) R1 Dial Peer 1 R2 Dial Peer 4 R1 Dial Peer 2 R2 Dial Peer 3 (214) (214) 444-…. (408) 555-…. Voice Port 1/1 S2 100 dial-peer voice 1 pots destination-pattern port 1/1 dial-peer voice 2 voatm destination-pattern session target Serial2 100 Cisco IOS Configuration on R1 Frame Relay

7-33CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Example: VoATM on a Back- to-Back Connection PC2 10BaseT Cisco MC3810 Cisco MC3810 PC1 10BaseT S2 Back-to-back ATM (T1) Router 1Router 2 Phone no. 10 Phone no. 20

7-34CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Example: Voice over ATM across a Network Cisco MC3810 Voice port 1/1 S2 ATM ATM PVC 27 1/ Cisco MC3810 Voice port 1/1 S2 1/ Router 1 Router 2

MC3810 VoATM Labs 7-35 Copyright © 1998, Cisco Systems, Inc.

7-36CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Lab 1: Voice over ATM ATM Phone: 1111 Phone: 2222 FXS T1 Remote Office Corporate Headquarters FXS

7-37CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Lab 2: Voice over ATM through PBX/Channel Bank ANALOGANALOG MFTMFT MFTMFT ATM T1 MFTMFT DVMDVM Telco Voice VPN (64K) Frame Relay ANALOGANALOG Home S1 MC3810 as a Channel Bank Phone: 1111 Phone: 2222

7-38CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Summary This chapter covered the following topics: Description of VoATM software and WAN trunk interfaces of the MC3810 List of Cisco IOS commands specific to configuring the MC3810 for VoATM Configuration of an MC3810 for VoATM using Cisco IOS software

7-39CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Summary (cont.) Configuration of the MC3810 WAN services, ATM voice port interfaces, and dial-peers using Cisco IOS software so a phone call can be successfully completed between two MC3810s Configuration of the MC3810 as a channel bank using the MC3810s advanced functionality

7-40CVOICEConfiguring the MC3810 for Voice over ATM Copyright © 1998, Cisco Systems, Inc. Blank for pagination