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This section provides specific configuration examples for different VoFR connections and call type scenarios. This section includes the following examples:
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Note In the examples, some commands are shown with a boldface lowercase letter. These letters indicate command settings that must match on the different routers. For example, the frame-relay cir s value indicates that the committed information rate "s" must match on the routers as shown. |
The examples do not provide complete configurations, but show the required commands to configure Voice over Frame Relay.
Figure 1 shows an example of Frame Relay fragmentation between two routers. This configuration uses FRF.12 fragmentation.
| Router A (Cisco 3600) | Router B (Cisco 7500) |
|---|---|
interface serial 0/0 | interface serial 0/0/0 |
encapsulation frame-relay | encapsulation frame-relay |
frame-relay traffic shaping | |
interface serial 0/0.1 point-to-point | interface serial 0/0/0.1 point-to-point |
| frame-relay interface-dlci 100 |
| class frf12-class |
map-class frame-relay frf12-class | map-class frame-relay frf12-class |
frame-relay fragment y | frame-relay fragment y |
frame-relay cir s | service-policy output llq-shape |
frame-relay bc u |
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Note The examples in this document assume that a map-class called frf12-class was previously configured. The service-policy output llq-shape command used on the Cisco 7500 series router in the above example assumes that the service policy called llq-shape was configured using low latency queuing and distributed traffic shaping. For information on low latency queueing on the VIP, see the Low Latency Queueing for the VIP feature module on CCO. For information on distributed traffic shaping, see the Distributed Traffic S haping feature module on CCO. The Configuration Examples section of this document assumes that the frf12-class map-class and the llq-shape service policy were previously configured. |
This example shows an example of Frame Relay fragmentation between a Cisco 7500 series router with a VIP and a Cisco 3600 series router.
| Router A (Cisco 3600) | Router B (Cisco 7500) |
|---|---|
interface serial 0/0 | interface serial 0/0/0 |
encapsulation frame-relay | encapsulation frame-relay |
frame-relay traffic shaping | |
interface serial 0/0.1 point-to-point | interface serial 0/0/0.1 point-to-point |
frame-relay interface-dlci 100 | frame-relay interface-dlci 100 |
| |
class frf11-class | class frf11-class |
map-class frame-relay frf11-class | map-class frame-relay frf11-class |
frame-relay fragment y | frame-relay fragment y |
frame-relay voice-bandwidth t | frame-relay voice-bandwidth t |
frame-relay cir s | service-policy llq-shape |
frame-relay bc u |
Figure 2 shows an example of a Cisco 7500 series router with a VIP with connections to a Cisco MC3810 using a VoFR PVC. In this example, the Voice over Frame Relay interface on the Cisco MC3810 is configured using the vofr cisco command.
This configuration uses FRF.11 Annex C fragmentation.
In this configuration, Low Latency Queuing is required in order to make a call. For information on configuring Low Latency Queueing, see the Low Latency Queueing for the VIP feature module on CCO.
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Note When a Cisco MC3810 is on a VoFR network, the configuration for connections to and from the Cisco MC3810 is slightly different than for other routers that support VoFR. |
| Router A (Cisco MC3810) | Router B (Cisco 7500) |
|---|---|
interface serial 0/0 | interface serial 0/0/0 |
encapsulation frame-relay | encapsulation frame-relay |
frame-relay traffic shaping | |
| interface serial 0/0/0.1 point-to-point |
frame-relay interface-dlci | frame-relay interface-dlci 100 |
| vofr cisco |
| class frf11-class |
map-class frame-relay frf11-class | map-class frame-realy frf11-class |
frame-relay fragment y | frame-relay fragment y |
frame-relay voice-bandwidth t | frame-relay voice-bandwidth t |
frame-relay cir s | service-policy llq-shape |
frame-relay bc u |
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Note The examples in this document assume that a map-class called frf11-class was previously configured. The service-policy output llq-shape command used on the Cisco 7500 series router in the above example assumes that the service policy called llq-shape was configured using low latency queuing and distributed traffic shaping. For information on low latency queueing on the VIP, see the Low Latency Queueing for the VIP feature module on CCO. For information on distributed traffic shaping, see the Distributed Traffic Shaping feature module on CCO. The Configuration Examples section of this document assumes that the frf-11 map-class and the llq-shape service policy were previously configured. |
Figure 3 shows an example of a tandem configuration with a Cisco 3600 as one endpoint and a Cisco MC3810 as another endpoint. The Cisco 7500 series router with a VIP as a tandem node.
| Router A (Cisco 3600) Endpoint | Router C (Cisco 7500) | Router B (Cisco MC3810) Endpoint |
|---|---|---|
interface serial 0/0 | interface serial 1/0/0 | interface serial 0/1 |
encapsulation frame-relay | encapsulation frame-relay | encapsulation frame-relay |
frame-relay traffic-shaping | interface serial 1/0/0.1 point-to-point | frame-relay traffic-shaping |
frame-relay interface-dlci 100 | frame-relay interface-dlci 100 | frame-relay interface-dlci 200 |
vofr data 4 call 5 | vofr data 4 call 5 | vofr cisco |
| | |
interface serial 1/0/0.2 point-to-point | ||
frame-relay interface-dlci 200 | ||
vofr cisco | ||
class voice | ||
map-class frame-relay voice | map-class frame-relay voice | map-class frame-relay voice |
| frame-relay fragment d | |
| | |
frame-relay cir a | service-policy output llq-shape | frame-relay cir a |
frame-relay min-cir t | frame-relay min-cir t | |
frame-relay bc b | frame-relay bc b | |
dial-peer voice 1 pots | dial-peer voice 1 vofr | dial-peer voice 1 vofr |
destination-pattern 1001 | destination-pattern 1001 | destination-pattern 1001 |
| session target serial 1/0/0 200 | session target serial 0/1 200 |
dial-peer voice 2 vofr | dial-peer voice 2 vofr | dial-peer voice 2 pots |
| destination-pattern 2001 | destination-pattern 2001 |
session target serial 0/0 100 | session target serial 1/0/0 200 | port 1/0/0 |
voice-port 1/0/0 | voice-port 1/0/0 |
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Note The examples in this document assume that a map-class called frf11-class was previously configured. The service-policy output llq-shape command used on the Cisco 7500 series router in the above example assumes that the service policy called llq-shape was configured using low latency queuing and distributed traffic shaping. For information on low latency queueing on the VIP, see the Low Latency Queueing for the VIP feature module on CCO. For information on distributed traffic shaping, see the Distributed Traffic Shaping feature module on CCO. The Configuration Examples section of this document assumes that the frf-11 map-class and the llq-shape service policy were previously configured. |
Figure 4 shows an example of a tandem configuration with a Cisco MC3810 acting as an endpoint node for Cisco-trunk (private line) calls.
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Note When a Cisco MC3810 is on a VoFR network, the configuration for connections to and from the Cisco MC3810 is slightly different from that of other routers that support VoFR. The vofr cisco command is required for those connections. |
| Router A (Cisco 3600) Endpoint | Router C (Cisco 7500) | Router B (Cisco MC3810) Endpoint |
|---|---|---|
interface serial 0/0 | interface serial 1/0/0 | interface serial 0/1 |
encapsulation frame-relay | encapsulation frame-relay | encapsulation frame-relay |
frame-relay traffic-shaping | interface serial 1/0/0.1 point-to-point | frame-relay traffic-shaping |
frame-relay interface-dlci 100 | frame-relay interface-dlci 100 | frame-relay interface-dlci 200 |
vofr data 4 call 5 | vofr data 4 call 5 | vofr cisco |
| | |
interface serial 1/0/0.2 point-to-point | ||
frame-relay interface-dlci 200 | ||
vofr cisco | ||
class voice | ||
map-class frame-relay voice | map-class frame-relay voice | map-class frame-relay voice |
| frame-relay fragment d | |
| | |
frame-relay cir a | service-policy output llq-shape | frame-relay cir a |
frame-relay min-cir t | frame-relay min-cir t | |
frame-relay bc b | frame-relay bc b | |
dial-peer voice 1 pots | dial-peer voice 1 vofr | dial-peer voice 1 vofr |
destination-pattern 1001 | destination-pattern 1001 | destination-pattern 1001 |
| session target serial 1/0/0 200 | session target serial 0/1 200 |
dial-peer voice 2 vofr | dial-peer voice 2 vofr | dial-peer voice 2 pots |
| destination-pattern 2001 | destination-pattern 2001 |
session target serial 0/0 100 | session target serial 1/0/0 200 | port 1/0/0 |
voice-port 1/0/0 | voice-port 1/1 | |
connection trunk 2001A answer-mode | connection trunk 1001A |
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Note The examples in this document assume that a map-class called frf12-class was previously configured. The service-policy output llq-shape command used on the Cisco 7500 series router in the above example assumes that the service policy called llq-shape was configured using low latency queuing and distributed traffic shaping. For information on low latency queueing on the VIP, see the Low Latency Queueing for the VIP feature module on CCO. For information on distributed traffic shaping, see the Distributed Traffic Shaping feature module on CCO. The Configuration Examples section of this document assumes that the frf-12 map-class and the llq-shape service policy were previously configured. |
Posted: Mon Jun 26 14:58:31 PDT 2000
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