Chapter 6: Configuring the MC3810 for Voice over Frame Relay 6-1 Copyright © 1998, Cisco Systems, Inc.

6-2CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Objectives Describe VoFR software and WAN trunk interfaces of the MC3810 List the Cisco IOS commands specific to configuring the MC3810 for VoFR Configure an MC3810 for VoFR using Cisco IOS software so students can connect and optimize their own VoFR enterprise branch offices

6-3CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Objectives (cont.) Configure the MC3810 WAN services, Frame Relay voice port interfaces, and dial peers using Cisco IOS software so a phone call can be successfully completed between two MC3810s

6-4CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Call Setup Signaling Call Setup and Control along PVC (3) Confirm Packet (1) Dialed Digits Translated to PVC (2) Call Setup Frame Sent (4) Telephone Rings Frame Relay Network

6-5CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Addressing and Routing Frame Relay Service Site D Site B Site C Site A

6-6CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Design Options Voice PVCs Go to One Central Site Public Frame Relay Public Frame Relay Full Mesh of PVCs

6-7CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Quality of Service Frame fragmentation Use of small frame sizes reduces delay and delay variation Shorter frames emulate fixed-size ATM cells Prioritization Voice frames sent before data frames Committed information rate (CIR) Ensures no discard of voice frames

6-8CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Minimizing Delay and Delay Variation Small frame sizes FRF.12data frame segmentation Voice frames prioritized over data frames Proper use of CIR

6-9CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Summary Frame Relay is common in many areas The service can be very cost-effective Frame Relay is an interface specification but there is room for innovation Future trends Switched virtual circuits (SVCs) Quality of service

MC3810 Voice over Frame Relay Introduction 6-10 Copyright © 1998, Cisco Systems, Inc.

6-11CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. MC3810 Voice over Frame Relay ISP TDM T1/E1 Nx64k T1/E1 or Serial Headquarters T1/E1 Digital PBX Regional Office PSTN Cisco MC3810 Frame Relay Video Analog Voice or

6-12CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Cisco MC3810 Standards Support and Frame Relay Support Frame Relay Forum FRF.1 User-Network Interface Frame Relay Forum FRF 3.1Multiprotocol Encapsulation Frame Relay Forum FRF.5Frame Relay/ATM Network Interworking Frame Relay Forum FRF.9Data Compression over Frame Relay ANSI T1.606 and ITU-T I.233.1Frame Relay Bearer Service Description ANSI T1.618 and ITU-T Q.922, Data Transfer Format ANSI T1.617 Annex D and DSS1 Signaling Specification ITU-T Q.933 Annex A ITU-T Q.933 Annex A IETF RFC-1293Inverse ARP IETF RFC 1315Frame Relay DTE MIB IETF RFC-1406T1/E1 MIB IETF RFC-1490Multiprotocol Encapsulation over Frame Relay

6-13CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. MC3810 VoFR on the MFT WAN Trunk From Cisco MC3810s Multiflex Trunk Module Channelized Trunk Options DS0 Time Slots To Carriers Frame, Voice, or DACS Services NxDS0for Frame Relay MxDS0 for PCM Voice(TDM) KxDS0 for TDM Channels or Video

6-14CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR and Data over MFT PBX or Key Set or Phone Routing Engine I/O Handler Frame Relay or HDLC Voice Call Handler Voice Compression MC3810 T1/E1 Multiflex Trunk Serial/0 Serial/1 Data PCM Voice

6-15CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. MC3810 Voice over Frame Relay MFT PBX or Key Set or Phone Routing Engine I/O Handler Frame Relay over 1 to 24/30 DS0s Voice Call Handler Voice Compression MC3810 T1/E1 Multiflex Trunk (MFT) Serial/0 Serial/1 Not Used

6-16CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. MC3810 Voice and Data over Frame Relay Serial Port PBX, Key Set, or Phone Routing Engine I/O Handler Frame Relay or HDLC Voice Call Handler Voice Compression MC3810 Serial/0/1 Serial/1

MC3810 Voice over Frame Relay Configuration Commands 6-17 Copyright © 1998, Cisco Systems, Inc.

6-18CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. MC3810 VoFR Configuration Commands Sets the encapsulation mode router(config-if)#frame-relay traffic-shaping Turns on traffic shaping on the interface router(config-if)#encapsulation frame-relay

6-19CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Commands (cont.) router(config-if)#frame-relay interface-dlci dlci [ broadcast ] [ ietf | cisco ] [ voice-encap size ] Configure the Frame Relay DLCI to support FRF.12 data segmentation for voice encapsulation router(config-dlci)#class map-class-name Associate the map class with the DLCI Exit the DLCI configuration mode router(config-dlci)#exit

6-20CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. VoFR Commands (cont.) In (config-if) mode, configure the Frame Relay map class router(config-map-class)#frame-relay bc { in | out } bits Configure the incoming and/or outgoing burst size router(config-if)#map-class frame-relay map-class-name router(config-map-class)#frame-relay cir { in | out } bps Configure the incoming and/or outgoing CIR for the PVC router(config-map-class)#frame-relay adaptive-shaping becn Configure the adaptive traffic rate adjustment to support BECN

MC3810 VoFR Network Examples 6-21 Copyright © 1998, Cisco Systems, Inc.

6-22CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Example: MC3810 VoFR Network ROUTER 1 n = Dial peer tag x51111 x /1 1/2 DLCI 150 1/1 Serial port 0 Serial port 0 ROUTER 2 x73333 x75555 x74444 PBX Frame Relay

6-23CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Outgoing Call from Dial Peer Voice port 1/1 DLCI SourceDestination Voice port 1/1 1 Dial-peer voice 1 pots destination pattern port 1/1 2 Dial-peer voice 2 VOFR destination pattern session target S0 150 Dial-peer voice 3 pots destination pattern port 1/1 DLCI 150 Serial Port 0 Serial Port 1 Frame Relay

6-24CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Outgoing Call from Dial Peer 2 Serial Port Voice port 1/1 DLCI 150 Serial port DestinationSource Voice port 1/1 Dial-peer voice 1 pots port 1/1 2 Dial-peer voice VOFR destination pattern session target S Dial-peer voice pots destination pattern port 1/1 DLCI 150 Frame Relay

6-25CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Dial Peers on Same MC3810 Destination Cisco MC Voice port 1/1 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 Frame Relay

6-26CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. dial-peer voice 3 pots destination-pattern port 1/1 dial-peer voice 4 vofr destination-pattern session target Serial0 150 Cisco IOS Configuration on R2 VoFR 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 S S0 dial-peer voice 1 pots destination-pattern port 1/1 dial-peer voice 2 vofr destination-pattern session target Serial0 150 Cisco IOS Configuration on R1 Frame Relay

6-27CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Example: MC3810 VoFR Back-to-Back Connection S2 Back-to-back Frame Relay DCE DLCI 231 DTE DLCI 231 ROUTER 1 ROUTER 2

6-28CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Frame Relay Example: Voice over Frame Relay across a Network Voice ports 1/1 thru 1/6 S thru S2 Remote Site 2 Remote Site 1 DLCI 100 DLCI thru thru DLCI 200 DLCI 100 S1

MC3810 Voice over Frame Relay Lab 6-29 Copyright © 1998, Cisco Systems, Inc.

6-30CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Lab: MC3810 VoFR Back-to- Back Connection S0 S1 Back-to-back Frame Relay DCE DLCI 100 DTE DLCI 100 No No. 2222

6-31CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Team2R1A Team3R1A Team1R1A Team1R3A Team2R3A Team3R3A IP address: Phone: 1111 IP address: Phone: 2222 IP address: Phone: 1111 IP address: Phone: 2222 IP address: Phone: 1111 IP address: Phone: 2222 S0S1 S0S1 S0S1 Frame Relay Lab Setup T1 S0: DCE S1: DTE Voice 100 Data 50 DLCI

6-32CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Summary Describe VoFR software and WAN trunk interfaces of the MC3810 List the Cisco IOS commands specific to configuring the MC3810 for VoFR Configure an MC3810 for VoFR using Cisco IOS software so students can connect and optimize their own VoFR enterprise branch offices

6-33CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Summary (cont.) Configure the MC3810 WAN services, Frame Relay voice port interfaces, and dial peers using Cisco IOS software so a phone call can be successfully completed between two MC3810s

6-34CVOICEConfiguring an MC3810 for Voice over Frame Relay Copyright © 1998, Cisco Systems, Inc. Blank for IG pagination