- or its affiliates in the U.S. - Classification and Queuing on the IP Phone 2-7. - Catalyst 6000 2-9. - Classification and Queuing on the IP Phone 2-12. - Classification and Queuing on the IP Phone 2-15. - Classification and Queuing on the IP Phone 2-17. - Configuring QoS on the Native Cisco IOS Catalyst 6000 3-39. - Frame-Relay WAN 5-21. - FRF.12 for LFI on Frame-Relay WANs 5-25. - cRTP on Frame-Relay Connections 5-26. - LLQ for VoIP over Frame Relay 5-26. - Verifying Frame Relay Queuing, Fragmentation, and Interleaving 5-28. - Frame-Relay-to-ATM Interworking WAN 5-35. - LFI on Low-Speed ATM-to-Frame-Relay Interworking WANs 5-37. - Frame-Relay Configuration at Remote Sites 5-41. - cRTP on ATM-to-Frame-Relay Connections 5-41. - LLQ for Voice over ATM and Frame Relay 5-41. - Frame-Relay WAN A3-8. - You can access CCO in the following ways:. - This can occur on a campus Ethernet switch as easily as in the Frame Relay network of a service provider.. - IP WAN PPP Frame Relay. - On the Catalyst 3500 XL and 2900 XL switches, use the following commands to configure the ports properly for IP phones:. - The following example uses this command in the Catalyst 6000:. - The following example uses this command in the Catalyst 4000:. - To create the IP phone 802.1Q access trunks in the Catalyst 3500 XL and 2900 XL series, use the following commands:. - Classification and Queuing on the IP Phone. - Catalyst 6000. - In the following example, a Catalyst 6000 is used as a wiring closet switch. - in the algorithm name. - Examples of these configurations are detailed in the “Catalyst 6000 Access Layer” section on page 3-11. - The following commands enable QoS on the access layer Catalyst 6000 by performing these functions:. - VoIP Control (CoS=3) frames should be placed into the second queue in the Catalyst 4000. - This requires the following changes to the configuration of the distribution switches:. - Configuring QoS on the Native Cisco IOS Catalyst 6000. - To enable QoS on the Catalyst 6000 with Native Cisco IOS, use the following command:. - The size of the . - QoS is vlan-based on the following interfaces:. - In the recommended Cisco AVVID QoS design model, classification is done at both Layer 2 and Layer 3 on the IP phone. - This is quite common and, in fact, has been one of the big selling points for Frame Relay. - On Frame Relay links, the TX-ring is for the main interface, which all. - Frame Relay 4 Bytes of Header. - Frame-Relay WAN. - Figure 5-8 shows the general model for Frame-Relay WANs described in this guide.. - Figure 5-8 General Model for a Frame-Relay WAN. - When designing a Frame-Relay WAN for a Cisco AVVID network, keep the following recommendations in mind:. - Cisco IOS Release 12.1(2)T is the minimum recommended release for a Frame-Relay WAN.. - You must use traffic shaping with Frame-Relay WANs.. - Frame Relay WAN. - Chapter 5 Implementing a Wide Area Network Frame-Relay WAN. - Traffic shaping is required for Frame-Relay networks for three reasons:. - Oversubscription of sites is part of the nature of Frame-Relay networks.. - The following sections describe some of the aspects of traffic shaping for Frame-Relay networks.. - The following example shows a configuration for a remote site router connected to a 256-kbps Frame-Relay circuit:. - encapsulation frame-relay load-interval 30. - frame-relay traffic-shaping. - ip address frame-relay interface-dlci 71. - frame-relay bc 1000 frame-relay be 0. - FRF.12 for LFI on Frame-Relay WANs. - In Frame-Relay networks, the fragmentation size is based on the Permanent Virtual Circuit (PVC), not the actual serialization rate (clocking speed) of the interface. - cRTP on Frame-Relay Connections. - LLQ for VoIP over Frame Relay. - ip address frame-relay interface-dlci 71 class VoIP-256kbs. - Verifying Frame Relay Queuing, Fragmentation, and Interleaving. - Frame-Relay-to-ATM Interworking WAN. - The conversion is accomplished through ATM-to-Frame-Relay Service Interworking (FRF.8) in the carrier network.. - Chapter 5 Implementing a Wide Area Network Frame-Relay-to-ATM Interworking WAN. - Figure 5-10 General Model of a WAN Combining ATM and Frame Relay. - When designing a Frame-Relay-to-ATM Interworking WAN for a Cisco AVVID network, keep the following recommendations in mind:. - Cisco IOS Release 12.1(5)T for MLP over ATM and MLP over Frame Relay is the minimum recommended release for this configuration.. - FRF.8 Transparent Mode is the only support method for MLP over ATM and Frame-Relay Service Interworking.. - Frame-Relay Network. - LFI on Low-Speed ATM-to-Frame-Relay Interworking WANs. - FRF.8 supports two modes of operation of the Interworking Frame Relay (IWF) for upper-layer user protocol encapsulation, which differ in the following ways:. - Translation Mode — Maps between ATM and Frame-Relay encapsulation. - A packet is encapsulated in the MLP-over-Frame-Relay header by the sending router.. - MLP-over-Frame-Relay packet and sends it to the MLP layer for further processing.. - The following sections present example configurations for ATM at the central site and Frame Relay at the remote sites.. - Frame-Relay Configuration at Remote Sites. - The following example illustrates a Frame-Relay configuration at the remote sites:. - description T1 to Frame Relay switch no ip address. - no arp frame-relay. - cRTP on ATM-to-Frame-Relay Connections. - LLQ for Voice over ATM and Frame Relay. - Traffic shaping is required for all Frame-Relay and ATM deployments.. - MLP over ATM and Frame Relay is supported in Cisco IOS Release 12.1(5)T.. - ATM-to-Frame-Relay 5-35 audience for this guide xii. - design considerations 4-1 Frame-Relay 5-41 traffic classification 4-7 buffer. - Frame-Relay 5-21. - Frame-Relay-to-ATM 5-35 FRF.12 5-25. - Frame Relay WAN A3-8. - ATM-Frame Relay WAN A3-26. - Configuring QoS for IP telephony networks is not a trivial task, as the configurations detailed in the previous chapters of the Cisco IP Telephony QoS Design Guide (or herein also referred to as “the Guide”) make evident.. - Enter the following information for the network device in the related field:. - The Telnet login password – The enable password. - Click on the Next button to continue.. - Click on the OK button to continue. - This section corresponds to Chapter 3 of the main guide ( Cisco IP Telephony QoS Design Guide ) entitled “Designing a Campus.” The order in which topics are presented will follow the order in which they are presented within the Guide, beginning with classification policies for the three main VoIP Control Protocols:. - Click on the IP_Phones device group from the Tree-View window panel. - Click on the. - This will copy the policy that colors Skinny Protocol traffic and apply it also to the VoIP_Control device group ports (currently consisting of only one port: Port 4/2—the Cisco CallManager port)
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