Manual do usuário Cisco Systems 416

Manual para o dispositivo Cisco Systems 416

Dispositivo: Cisco Systems 416
Categoria: Placa de rede
Fabricante: Cisco Systems
Tamanho: 0.29 MB
Data de adição: 8/7/2013
Número de páginas: 22
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Resumo do conteúdo contido na página número 1


CHAPTER
7
Provisioning: Configuring QoS for IP Telephony
In an Architecture for Voice, Video, and Integrated Data (AVVID) network, you must configure QoS for
IP telephony to ensure voice quality.
The following topics provide information about the need for configuring QoS in an IP telephony
environment and the tools that enable you to do this.
• Understanding QoS for IP Telephony, page 7-1
� Using QPM to Configure QoS for IP Telephony, page 7-3
� Configuring QoS Using the IP Telephony Wizard

Resumo do conteúdo contido na página número 2

Chapter 7 Provisioning: Configuring QoS for IP Telephony Understanding QoS for IP Telephony QPM provides tools that can determine and configure the optimum QoS for a voice network. These include: � Provisioning tools—Lets you define the correct policies for interfaces on the voice paths. QPM provides voice policies that contain the QoS configurations and traffic rules required at each relevant point in the network that needs QoS for IP telephony. � Deployment tools—Lets you deploy the

Resumo do conteúdo contido na página número 3

Chapter 7 Provisioning: Configuring QoS for IP Telephony Using QPM to Configure QoS for IP Telephony Table 7-1 explains the network points that require QoS configuration for IP telephony. Table 7-1 Network Points Requiring QoS Configuration Network Point in Figure 7-1 Description 1 Access switch—IP phone ports 2 Layer 3 QoS-aware access switch (with PFC)—SoftPhone port 3 Layer 3 QoS-aware access switch (with PFC)—CallManager port 4 Layer 3 QoS-aware access switch (with PFC) uplink po

Resumo do conteúdo contido na página número 4

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard You can also create voice policies without the wizard, using the voice policy templates supplied by QPM. You assign the voice policies in the same way as you would data policies. After you have completed the IP Telephony wizard, you can modify properties and policies of the voice policies created by the voice wizard, to suit a specific network configuration. Related Topics � Configur

Resumo do conteúdo contido na página número 5

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard Using the IP Telephony Wizard This topic describes the following main features of the IP Telephony wizard pages, and how to use those features: � Description, page 7-5 � Advanced, page 7-5 � Selection Table, page 7-5 � Assignment Summary, page 7-5 � Saving Your Assignments, page 7-6 Description Each configuration step page of the wizard includes a description of the QoS policies that

Resumo do conteúdo contido na página número 6

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard The following assignments summary information may be displayed: � The total number of network elements you selected in this configuration step. � The number of network elements that were selected, but found to be previously assigned to voice policies with this voice role. � The number of network elements that were newly assigned to a voice policy with this voice role. (This may inclu

Resumo do conteúdo contido na página número 7

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard � Selecting IntraLAN Connections � Selecting Voice VLAN Connections � Selecting Switch to WAN Router Connections � Selecting Router WAN to Switch Connections � Selecting WAN Point to Point Connections � Selecting WAN Frame Relay Connections � End Before you Begin To run the wizard, it is assumed that the following preconditions have been met: � Voice VLANs have been configured on all t

Resumo do conteúdo contido na página número 8

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard If you are running the wizard for the first time, click the Before you run the wizard for the first time link. A window opens, prompting you to check the following: � If you opened the wizard before adding or importing your devices into QPM’s device inventory, click Cancel to exit the wizard, and add or import your devices before running the wizard. � Check if your devices support vo

Resumo do conteúdo contido na página número 9

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard Step 3 Select/deselect to view the Assignment Summary page: � If you want to view summary information about the assignments made at each configuration step of the wizard, select the Display Configuration Info check box and click Next. The Assignment Summary page appears. For information about the Assignment Summary page, see IP Telephony Wizard: Assignment Summary Page, page B-129.

Resumo do conteúdo contido na página número 10

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard Step 3 Click Next. If the Display Configuration Info. check box is selected, the Configuration Info page appears. After reviewing the assignments summary, click Next. The voice policy groups and your IP phones ports assignments will be saved, and the next configuration step of the wizard appears (Selecting SoftPhone Connections). Related Topics � Using QPM Tables, page 3-16 � Using t

Resumo do conteúdo contido na página número 11

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard Selecting CallManager Connections This step of the wizard describes the QoS requirements for Catalyst ports to which CallManagers or Voice Gateways are connected, and asks you to select the switch ports on which the wizard will configure the QoS settings for these connections in your network (network point 3 in Figure 7-1). To select Call Manager connections: Step 1 Select the switch

Resumo do conteúdo contido na página número 12

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard If QPM recognizes that the neighboring switch has Layer 3 QoS capabilities, it will trust DSCP from the Layer 3 switch. If there is no neighboring switch (or if the switch is of unknown type), QPM will configure QoS for a Layer 2 device. To select IntraLAN connections: Step 1 Select the switch interfaces on which to configure QoS for the LAN connections in the network, by selecting

Resumo do conteúdo contido na página número 13

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard To select Voice VLAN connections: Step 1 In the selection table, select the auxiliary VLANs on which to configure QoS on both the access and distribution layer switches. For more information about the columns in this table, see IP Telephony Wizard: Select Voice VLAN Connections Page, page B-138. Step 2 To remove any VLANs that were previously assigned for this voice role: a. Click t

Resumo do conteúdo contido na página número 14

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard For more information about this page, see IP Telephony Wizard: Remove Network Elements Page, page B-132. b. Select the interfaces you want to unassign and click Remove. The page closes. Step 3 Click Next. If the Display Configuration Info. check box is selected, the Configuration Info page appears. After reviewing the assignments summary, click Next. The voice policy groups and you

Resumo do conteúdo contido na página número 15

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard If the Display Configuration Info. check box is selected, the Configuration Info page appears. After reviewing the assignments summary, click Next. The voice policy groups and your Router-to-Switch interface assignments will be saved, and the next configuration step of the wizard appears (Selecting WAN Point to Point Connections). Related Topics � Using QPM Tables, page 3-16 � Using

Resumo do conteúdo contido na página número 16

Chapter 7 Provisioning: Configuring QoS for IP Telephony Configuring QoS Using the IP Telephony Wizard The voice policy groups and your WAN-Serial-Point-to-Point interface assignments will be saved, and the next configuration step of the wizard appears (Selecting WAN Frame Relay Connections). Related Topics � Using QPM Tables, page 3-16 � Using the IP Telephony Wizard, page 7-5 � Viewing Policy Information, page 8-14 � Troubleshooting the IP Telephony Network, page 14-14 Selecting WAN

Resumo do conteúdo contido na página número 17

Chapter 7 Provisioning: Configuring QoS for IP Telephony Modifying Voice Policies The voice policy groups and your WAN-Frame-Relay interface assignments will be saved, and the last step of the wizard appears (End, page 7-17). Related Topics � Using QPM Tables, page 3-16 � Using the IP Telephony Wizard, page 7-5 � Viewing Policy Information, page 8-14 � Troubleshooting the IP Telephony Network, page 14-14 End The final step of the IP Telephony wizard informs you that all the QoS setting

Resumo do conteúdo contido na página número 18

Chapter 7 Provisioning: Configuring QoS for IP Telephony Viewing the Voice Ready Report The Policy View page displays all voice policies together with non voice policies in the current policy group. For each voice policy, its associated voice role is displayed. You can modify any of the properties and traffic rules of a voice policy, except for its device constraints. Changing the device constraints will cause the voice policy to lose its voice role. In this case, the IP Telephony wi

Resumo do conteúdo contido na página número 19

Chapter 7 Provisioning: Configuring QoS for IP Telephony Advanced IP Telephony Network Configuration Related Topics � Introduction, page 7-7 � Selecting IP Telephony Devices, page 7-8 � Using QPM Tables, page 3-16 � Viewing and Editing Device Properties, page 4-10 Advanced IP Telephony Network Configuration Although QPM’s IP Telephony wizard can configure many of the QoS requirements for an AVVID network, there are some potential configurations you might need to consider that are beyon

Resumo do conteúdo contido na página número 20

Chapter 7 Provisioning: Configuring QoS for IP Telephony Advanced IP Telephony Network Configuration Configuring QoS on ATM Connections The QPM IP Telephony wizard does not configure ATM connections. However, QPM includes templates that you can use to create policy groups for your ATM interfaces. To configure QoS on ATM Connections: Step 1 Create and bind virtual template interfaces on the ATM PVC. For example, the bolded command in this configuration example shows the commands for bin


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