CCIE Practical Studies, Volume I

Lab 15a: Configuring Voice over Frame Relay ”Part I

Physical Layout and Prestaging

• Connect one of the Cisco voice-capable routers to the Serial 1/2 interface on the Cisco 2600 series router (Frame Relay switch), as shown in Figure 6-26.

• Connect the other Cisco voice-capable router to the Serial 1/3 interface on the Cisco 2600 series router (Frame Relay switch), as shown in Figure 6-26.

• Connect an analog phone set to each of the FXS interfaces on the Cisco voice-capable routers, as shown in Figure 6-26.

Configuring and Verifying Voice Ports

Configuring the ports on the router for the telephone headsets can be configured in the lab or as part of the prestaging. Example 6-1 shows the configuration for voice ports and for the Frame Relay switch that will be used in both the VoIP and VoFR labs.

Example 6-1 Configuring the Voice Ports and Frame Relay Switc

hostname frame-switch ! frame-relay switching ! <<<text omitted>>> ! interface Serial1/0 no ip address encapsulation frame-relay no fair-queue clockrate 64000 frame-relay intf-type dce ! interface Serial1/1 no ip address encapsulation frame-relay clockrate 64000 frame-relay intf-type dce ! interface Serial1/2 no ip address encapsulation frame-relay clockrate 64000 frame-relay intf-type dce frame-relay route 200 interface Serial1/3 100 ! interface Serial1/3 no ip address encapsulation frame-relay clockrate 64000 frame-relay intf-type dce frame-relay route 100 interface Serial1/2 200 ! <<<text omitted>>> end frame-switch# _________________________________________________________________ hostname vofr1 ! <<<text omitted>>> ! voice-port 3/0/0 timeouts call-disconnect 0 ! voice-port 3/0/1 timeouts call-disconnect 0 ! voice-port 3/1/0 timeouts call-disconnect 0 ! voice-port 3/1/1 timeouts call-disconnect 0 ! dial-peer voice 11 pots destination-pattern 1111 port 3/0/0 ! dial-peer voice 2222 vofr destination-pattern 2222 session target Serial1/0 100 ! <<<text omitted>>> ! interface Serial1/0 no ip address no ip directed-broadcast encapsulation frame-relay no ip mroute-cache frame-relay traffic-shaping ! interface Serial1/0.1 point-to-point ip address 150.150.10.1 255.255.255.0 no ip directed-broadcast frame-relay interface-dlci 100 class voice vofr cisco ! <<<text omitted>>> ! ! map-class frame-relay vofr frame-relay voice bandwidth 64000 ! map-class frame-relay voice frame-relay cir 768000 frame-relay bc 1000 frame-relay mincir 120000 no frame-relay adaptive-shaping frame-relay fair-queue frame-relay voice bandwidth 78000 frame-relay fragment 1500 ! <<<text omitted>>> 2! end vofr1#