Cisco Systems PA-2E3, PA-E3 manual Using the loopback Command to Verify the Physical Interface

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Using the loopback Command to Verify the Physical Interface

•Set the interface into network payload loopback mode as follows:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

router(config)# interface serial 10/0/0 router(config-if)#loopback network payload

Network payload loopback loops just the payload data back toward the network at the E3 framer.

Configuring the PA-E3 Interfaces 8-21

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Contents Corporate Headquarters PA-E3 Serial Port Adapter Installation and ConfigurationPage Section Title Description PrefaceObjectives OrganizationRelated Documentation Section Title Description Related DocumentationRelated Documentation Documentation CD-ROM Cisco Connection OnlineCisco Connection Online Port Adapter Overview OverviewOne-Port PA-E3 Serial Port Adapter Port Adapter OverviewPA-E3 Port Adapter LEDs PA-E3 Serial Port Adapter FeaturesPA-E3 Serial Port Adapter Features Management Information BaseName Color State Description PA-E3 Receptacles and CablesPA-E3 Receptacles and Cables PA-E3 Port Adapter LEDsInteroperability Guidelines for PA-E3 DSUs 6PA-E3 Serial Port Adapter Installation and Configuration Parts and Tools Required Preparing for InstallationSoftware and Hardware Requirements Software and Hardware RequirementsPA-2E3 Safety Guidelines Safety Guidelines4PA-E3 Serial Port Adapter Installation and Configuration Electrical Equipment Guidelines Telephone Wiring GuidelinesElectrical Equipment Guidelines Preventing Electrostatic Discharge DamageTBR24 Compliance Compliance InformationBabt Compliance ITI-T ComplianceOverview VIP2 and the PA-E3Dimm U5 OverviewPA-E3 in port adapter Slot PA-E3 in port adapter slot Removing a Port Adapter Removing a Port AdapterInstalling a Port Adapter Installing a Port AdapterAligning a Port Adapter in a Port Adapter Slot H3152 8PA-E3 Serial Port Adapter Installation and Configuration Catalyst RSM/VIP2 and the PA-E3 Port adapter securing screw Removing a Port Adapter Installing a Port Adapter Aligning a Port Adapter in a Port Adapter Slot 6PA-E3 Serial Port Adapter Installation and Configuration Cisco 7206 with a PA-E3 in Port Adapter Slot Cisco 7200 Series and the PA-E3Port adapter Handle Lever unlocked Position Handling a Port Adapter Port adapter Handle Cisco uBR7200 Series and the PA-E3 Port adapters Port adapters Port adapter lever in unlocked position Inside slot guide PC board Metal carrier Port adapter retention clip in locked position 6PA-E3 Serial Port Adapter Installation and Configuration Cisco 7100 Series and the PA-E3 Installation OverviewCisco 7140 Series Router-Port Adapter Slot 4 Location Installing a Port Adapter Guides Using the Exec Command Interpreter Configuring the PA-E3 InterfacesCisco 7200 Series and Cisco uBR7200 Series Ports Cisco 7206 Serial Port Number Example Cisco 7200 Series and Cisco uBR7200 Series PortsPA-E3 Interface Port Address Example- Cisco uBR7246 Shown VIP2 PortsCatalyst RSM/VIP2 Ports Catalyst RSM/VIP2 PortsCisco 7100 Series Ports Route Switch ModuleWith port adapters Performing a Basic Conﬁguration Performing a Basic ConfigurationConﬁguration Example Configuration ExampleCustomizing the PA-E3 Deﬁning Set Bit National Setting the BandwidthDeﬁning the DSU Mode Setting the BandwidthSpecifying E3 Framing Setting the Cable LengthConfiguring Cyclic Redundancy Checks Conﬁguring Cyclic Redundancy ChecksChecking the Configuration Using show Commands to Verify StatusChecking the Conﬁguration Number Checking the Configuration StepRouter# show interfaces serial 2/0 14PA-E3 Serial Port Adapter Installation and Configuration Router# show controllers serial 0/1 Serial0/1 16PA-E3 Serial Port Adapter Installation and Configuration 73-1684-03 18PA-E3 Serial Port Adapter Installation and Configuration Using the ping Command to Verify Network Connection Using the ping Command to Verify Network ConnectionUsing the loopback Command to Verify the Physical Interface Using the loopback Command to Verify the Physical Interface 22PA-E3 Serial Port Adapter Installation and Configuration