Cisco Systems 78-13983-04 Configuring Fast Ethernet Interfaces, Setting the Speed and Duplex Mode

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Chapter 4 Configuring with the Command-Line Interface

Configuring Fast Ethernet Interfaces

Configuring Fast Ethernet Interfaces

To configure the FE interface of the MWR 1900, complete the following tasks:

Configuring the FE Interface IP Address

Setting the Speed and Duplex Mode

Configuring Routing Protocol Attributes

Configuring PIM

Configuring HSRP Support

Enabling the FE Interface

Configuring the FE Interface IP Address

To configure the FE interface, do the following starting in global configuration mode:

Step 1 Specify the port adapter type and the location of the interface to be configured.

Router(config)# interface fastethernet slot/port

The slot is always 0 and the port is the number of the port (0 or 1).

Step 2 Assign an IP address and subnet mask to the interface.

Router(config-if)#ip address ip_address subnet_mask

Setting the Speed and Duplex Mode

The Fast Ethernet ports of the MWR 1900 can run in full or half duplex mode and at 100 Mbps or 10 Mbps. The MWR 1900 also has an auto-negotiation feature that allows the router to negotiate the speed and duplex mode with the corresponding interface on the other end of the connection.

Auto negotiation is the default setting for the speed and transmission mode.

When configuring an interface speed and duplex mode, note these guidelines:

If both ends of the line support auto negotiation, we highly recommend the default auto negotiation settings.

When the auto negotiation is turned on for either speed or duplex, it auto negotiates both speed and duplex.

If one interface supports auto negotiation and the other end does not, configure duplex and speed on both interfaces; do not use the auto setting on the supported side or the duplex setting will be half.

Cisco MWR 1900 Mobile Wireless Edge Router Software Configuration Guide

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78-13983-04

 

 

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Contents Corporate Headquarters Customer Order Number DOC-7813983= Text Part NumberCopyright 2002 Cisco Systems, Inc All rights reserved Software Features Limitations and Restrictions First-Time ConfigurationAbout This Guide AudienceUsing the Setup Command Facility Saving Configuration ChangesConfiguring PIM Configuring PPP MultiplexingConfiguring Redundancy Where to Go NextMode y-cable Assigning a QoS Boilerplate to an InterfacePage Objectives AudienceOrganization Chapter Title DescriptionDocument Conventions Convention DescriptionBoldface font Boldface screenAdditional Information Related DocumentationObtaining Documentation World Wide WebObtaining Technical Assistance Documentation CD-ROMOrdering Documentation Documentation FeedbackTechnical Assistance Center To access Cisco.com, go to the following websiteCisco.com Contacting TAC by Telephone Overview of the MWR BenefitsSoftware Features Cisco IOS SoftwareNetwork Processor Software MLP, PPP Control Path IPCP, NCP, LCP, ClnsPPP Multiplexing/Demultiplexing RTP/UDP Header CompressionRedundancy Support RTP Header CompressionMIB Support MWR 1900 supports the following MIBsRFC1213-MIB RFC1253-MIBLimitations and Restrictions 802.1Q VLANs Frame Relay FRUnderstanding Interface Numbering Understanding Boot ImagesBefore You Begin Interface type Slot number/Interface number Before Starting Your Router Using the Setup Command FacilityConfiguring Global Parameters Viewing the configuration Enter a host name for the router this example usesSummary of interfaces is displayed Completing the ConfigurationYou are then prompted to configure the specified interface Where to Go Next First-Time Configuration Where to Go NextCisco IOS Software Basics Getting HelpUnderstanding Command Modes Configure terminalExit , or logout As interface serial 0/0Undoing a Command or Feature Saving Configuration ChangesPage Configuring with the Command-Line Interface Configuring the Host Name and Password Enter global configuration modePrompt changes to Routerconfig# Verifying the Version of Cisco IOS SoftwareConfiguring Loopback Interfaces Exit to global configuration modeExit interface configuration mode Change the name of the router to a meaningful nameSetting the Speed and Duplex Mode Configuring Fast Ethernet InterfacesConfiguring the FE Interface IP Address Specify the speed Configuring Routing Protocol AttributesConfiguring PIM Configuring Hsrp Support Specify a priority Configuring Multilink InterfacesEnabling the FE Interface Enable multilink PPP operation Configuring Multilink PPPConfiguring IP Address Assignment Configuring PPP Multiplexing Configuring RTP/UDP CompressionTo set the default PPP protocol ID, enter To set the maximum length of the subframe, enterRPM-3config-if#ip rtp header-compression Configuring T1 and E1 Interfaces Configuring T1 InterfacesConfiguring E1 Interfaces Set the carrier delay for the serial interfaceConfiguring QoS Attributes Creating a Class Map Creating a Policy Map78-13983-04 Redundant MWR 1900s Configuring RedundancyAssigning a QoS Boilerplate to an Interface Specify the interface to be used for backhauling Exit y-mode configuration modeStand-Alone MWR Verifying the Configuration MWR1900-1#show running-configMatch access-group Ip ospf message-digest-key 1 md5 mymd5pw Ip ospf Hello-interval Ospf Dead-interval Monitoring and Managing the MWR Show Commands for Monitoring the MWR Command PurposeShow protocols Show controllersShow interface type slot / port Command Reference Clear ip rtp header-compression Command Modes Command History Usage Guidelines Examples Related Commands DescriptionClear ppp mux Clear ppp mux interface interfaceSyntax Description Defaults Command Modes Connections Interface configurationIp rtp header-compressionEnables RTP header compression Ip rtp compression-connectionsPassive Syntax Description Defaults Command Modes Command HistoryIp rtp header-compression Related Commands Description Mode y-cable Mode y-cableStandalone Standby use-interfaceCommand Modes Command History Ppp muxUsage Guidelines Examples Related Commands Ppp mux delayPpp mux delay integer no ppp mux delay Defaults Command Modes Command History Default maximum length is Interface configurationPpp mux frame Ppp mux frame integer no ppp mux framePpp mux pid Ppp mux pid integerPpp mux subframe length Ppp mux subframe length integer No ppp mux subframe lengthPpp mux subframe count integer No ppp mux subframe count Default maximum is Interface configurationPpp mux subframe count Global configuration Following example enables redundancy modeInvoked y-cable mode RedundancyShow ip rtp header-compression Show ip rtp header-compression type number detail1describes the significant fields shown in the display Field DescriptionThat can exist on an interface Show ppp mux Interface interfacePpp mux Enables PPP multiplexing/demultiplexing 2describes the significant fields shown in the displayThis command has no attributes Show redundancyInvokes y-cable mode Invokes redundancy modeStand-alone configuration StandbySyntax Description Defaults Cable configurationStandalone No standaloneStandby use-interface Standby use-interface interface health revertive backhaulStandby use-interface loopback102 revertive Page Counters, PPP multiplexing Cisco IOS About Command modes Enable modeIP address MIB support Mode y-cable IN-2Command ConfiguringIN-4