Cisco Systems OL-8978-02 manual SmartPorts-Cisco IP Phone, SmartPorts-Cisco Softphone, 55-39

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Chapter 55 Configuring a VoIP Network

Using SmartPorts

When you execute the ciscoipphone keyword on a port, in addition to the previous features, these features are also implemented:

•The specified auxiliary VLAN is associated with the port.

•The inline power is enabled.

•CDP is enabled globally and on the port.

•CDP is configured to version v2.

•The port-based automatic QoS command for the Cisco IP phone is executed.

When you execute the ciscosoftphone keyword on a port, in addition to the previous features, these features are also implemented:

•The auxiliary VLAN for the port is set to “none.”

•The port-based automatic QoS command for the Cisco SoftPhone is executed.

SmartPorts—Cisco IP Phone

In most configurations, the Cisco IP Phone 79xx is connected directly to the Catalyst switch port. Optionally, you can attach a PC to the phone and use the phone as a hop to the switch.

Typically, the traffic that comes from the phone and enters the switch is marked with a tag using the 802.1Q/p header. The header contains the VLAN information and the CoS 3-bit field. The CoS determines the priority of the packet. The switch uses the CoS field to distinguish the PC traffic from the phone traffic. The switch can also use the DSCP field for the same purpose.

In most Cisco IP Phone 79xx configurations, the traffic that comes from the phone and enters the switch is trusted. You set the port trust to trust-cos to properly prioritize the voice traffic over other types of traffic in the network.

The Cisco IP Phone 79xx has a built-in switch that mixes the traffic that comes from the PC, the phone, and the switch port. The Cisco IP Phone 79xx has the trust and classification capabilities that you need to configure.

The ports that connect the IP phones need to have several features enabled or disabled. SmartPorts ensures that the necessary features are enabled. Most of these features are implemented when you execute the set port host command (such as disabling channels, enabling PortFast, and so on). A VLAN and an auxiliary VLAN must be configured on the port for QoS to work. The inline power needs to be enabled (if available), and CDP must be enabled for the trusted boundary feature to work. QoS configuration is handled by the automatic QoS feature (see Chapter 52, “Using Automatic QoS”).

SmartPorts—Cisco Softphone

The Cisco SoftPhone is a software product that runs on a standard PC and emulates an IP phone. The main difference between the Cisco SoftPhone and the Cisco IP Phone 79xx is that the Cisco SoftPhone marks its voice traffic through a DSCP, while the Cisco IP Phone 79xx marks its traffic through a CoS. The QoS settings on the switch accommodate this behavior by trusting the Layer 3 marking of the traffic entering the port. All other behavior is similar to the Cisco IP Phone 79xx. Some features, such as CDP, do not need to be enabled because the trusted boundary does not support Cisco SoftPhone.

 

 

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Contents 55-1 A P T E R55-2 Cisco IP Phone55-3 55-4 55-5 Access GatewaysCisco CallManager Analog Station Gateway55-6 FXS Interface FeaturesAnalog Trunk Gateway Digital Trunk Gateway55-7 Digital Signal Processing Per T1/E1 PortConverged Voice Gateway Link Management55-8 How a Call Is Made55-9 Switch-to-Phone ConnectionsShow port inlinepower Voice-Related CLI CommandsCLI Commands Ethernet Module1 WS-X6608-T1/E12 WS-X6624-FXS3 Set port inlinepower Set inlinepower defaultallocationConfiguring Per-Port Power Management Show environment power55-11 Task Command Show module mod55-12 Power Management Modes Show version mod55-13 Power Requirements Phone Class Required Power W55-14 Phone Removal Available PowerWall-Powered Phones Powering Off the PhonePhone Detection Summary High-Availability Support55-16 55-17 Setting the Power Mode of a Port or a Group of PortsSetting the Default Power Allocation Set port inlinepower mod/port auto staticSet inlinepower notify-threshold percentage Show port inlinepower mod /port detail55-18 Console enable show environment power Displaying the Switch Power Environment for ModulesShow environment power mod Console show port inlinepower 4/1 detail55-20 Configuring the Auxiliary VLANs on Catalyst LAN SwitchesEnter the set port auxiliaryvlan mod/port auxvlanid command Understanding the Auxiliary VLANsUntagged dot1p none Auxiliary Vlan Configuration GuidelinesConfiguring the Auxiliary VLANs Set port auxiliaryvlan mod /ports vlan55-22 Verifying the Auxiliary Vlan ConfigurationDisabling the Auxiliary VLANs Until an IP Phone is Detected Keyword ActionConfiguring the Access Gateways Configuring a Port Voice Interface55-23 Show port voice fdl mod /port Displaying a Port Voice Interface ConfigurationDisplaying the FDL Statistics Show port voice interface mod /portShow port mod /port Displaying the Port Configuration for the Individual PortsConsole enable show port voice fdl 7/1-3 Field DescriptionPort T1/E1 Pstn Interface Module 55-26Console show port 55-27 55-28 Port FXS Analog Interface Module55-29 Displaying the Active Call InformationShow port voice active mod/port All call conference transcode ipaddr55-30 Console show port voice activeConsole show port voice active 3/2 Configuring QoS in the Cisco IP Phone Understanding How QoS Works in the Cisco IP Phone55-31 Untrusted Configuring QoS in the Cisco IP PhoneSetting the Phone Access Port Trust Mode Set port qos mod/ports...trust-ext trusted55-33 Configuring a Trusted Boundary to Ensure Port SecuritySetting the Phone Access Port CoS Value Verifying the Phone Access Port QoS Configuration55-34 QoS and Cisco IP Phone ConfigurationQoS, Cisco IP Phone, and PC Configuration Supported Cisco IP Phones55-35 Trusted Boundary Configuration Guidelines55-36 Configuring a Trusted Boundary55-37 Default ConfigurationSpecifying a Cisco IP Phone as the Trust Device Verifying a Port’s Trust-Device State55-38 Understanding SmartPorts MacrosSmartPorts-Cisco IP Phone SmartPorts-Cisco Softphone55-39 SmartPorts Guidelines and Restrictions 55-41 Command DescriptionCiscoipphone Command Output CLI Interface for SmartPortsDetailed SmartPorts Statements Ciscosoftphone Command OutputConsole enable set port macro 3/1 ciscoipphone vlan Console enable set port macro 3/1 ciscosoftphone vlanKeyword Port Type How to Use SmartPorts in Your NetworkCiscoipphone Macro Statement Ciscosoftphone Macro StatementSmartPorts Enhancements in Software Release Ciscorouter SmartPorts Template55-44 Set port macro mod/port ciscodesktop vlan vlan Ciscoswitch SmartPorts TemplateCiscodesktop SmartPorts Template 55-45Set port macro mod/port ciscosoftphone vlan nativevlan Ciscoipphone SmartPorts TemplateCiscosoftphone SmartPorts Template 55-4655-47 Configuring User-Definable SmartPorts MacrosGlobal SmartPorts Template Overview55-48 Using the CLI to Configure User-Definable SmartPorts MacrosConsole enable set macro name videophone Creating User-Defined MacrosModifying Existing User-Defined Macros Defining Variables55-49 Using Special Variables Applying a User-Defined Macro55-50 Console enable set port macro 3/2 videophone Console enable set port macro 3/7 videophone55-51 55-52 Displaying MacrosDisplaying Macro Variables Show macro name nameofmacro show macro allClearing Macros and Macro Variables Clear macro name nameofmacro clear macro all55-53 Displaying Macro Port Mappings Show macro map all name nameofmacro port mod/port55-54 Configuring a Macro within a Macro Console enable show macro map port 3/255-55 55-56

OL-8978-02 specifications

Cisco Systems OL-8978-02 is a comprehensive training curriculum designed to enhance the skills and knowledge of network professionals seeking to advance their careers in network management and security. This curriculum offers a significant focus on Cisco networking technologies and concepts, ensuring that learners are well-equipped to handle the intricacies of modern network environments.

One of the primary features of OL-8978-02 is its in-depth coverage of foundational networking concepts, which are crucial for effective network administration. The curriculum includes detailed modules on networking fundamentals, such as OSI and TCP/IP models, LAN and WAN architectures, and network protocols. This solid foundation enables learners to understand how different networking components interact and function together, forming the backbone of corporate and enterprise environments.

In addition to foundational knowledge, OL-8978-02 integrates a strong focus on security technologies and practices. Considering the increasing prevalence of cyber threats, the course emphasizes the importance of implementing robust security measures. Participants will learn about firewalls, intrusion prevention systems, VPNs, and other critical security technologies. This focus ensures that learners are prepared to safeguard networks against evolving security threats, a necessity in today’s digital landscape.

Another distinguishing characteristic of the OL-8978-02 curriculum is its emphasis on hands-on experience. The program often includes practical labs and simulations, allowing participants to apply theoretical knowledge in real-world scenarios. This experiential learning approach is pivotal for solidifying skills and boosting confidence in network management tasks.

Furthermore, OL-8978-02 addresses the latest advancements in networking technology, including software-defined networking (SDN) and cloud computing. By introducing emerging technologies, this curriculum ensures that professionals remain ahead of the curve, ready to adapt to the future demands of networking.

Finally, Cisco Systems OL-8978-02 positions itself not only as an educational tool but also as a career catalyst, providing learners with skills that are highly sought after in the IT job market. Upon completion, participants often find themselves well-prepared for various Cisco certifications, which can enhance their employability and professional growth opportunities in a competitive landscape. Through its thorough approach, OL-8978-02 plays a vital role in shaping the next generation of network professionals.
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