Cisco Systems PA-T3 manual Using the ping Command to Verify Network Connection

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Checking the Configuration

For complete command descriptions and examples for the Cisco 7100 series routers, Cisco 7200 series routers, Cisco uBR7200 series routers, VIP2 and Catalyst RSM/VIP2, refer to the publications listed in the “Related Documentation” section on page vi.

Using the ping Command to Verify Network Connection

The ping command allows you to verify that an interface port is functioning properly and to check the path between a specific port and connected devices at various locations on the network. After you verify that the system has booted successfully and is operational, you can use the ping command to verify the status of interface ports. Refer to the publications listed in the “Related Documentation” section on page vi for detailed command descriptions and examples.

The ping command sends an echo request out to a remote device at an IP address that you specify. After sending a series of signals, the command waits a specified time for the remote device to echo the signals. Each returned signal is displayed as an exclamation point (!) on the console terminal; each signal that is not returned before the specified timeout is displayed as a period (.). A series of exclamation points (!!!!!) indicates a good connection; a series of periods (.....) or the message [timed

out] or [failed] indicates that the connection failed.

Following is an example of a successful ping command to a remote server with the address 10.0.0.0:

router# ping 10.0.0.0 <Return> Type escape sequence to abort.

Sending 5, 100-byte ICMP Echoes to 10.0.0.0, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms router#

If the connection fails, verify that you have the correct IP address for the server and that the server is active (powered on), and repeat the ping command. Refer to the publications listed in the “Related Documentation” section on page vi for complete descriptions of interface subcommands and the available configuration options.

Using the loopback Command to Verify the Physical Interface

Use the loopback {dte local network {line payload} remote} command to troubleshoot the PA-T3 serial port adapter at the physical interface level. The command loops all packets from the PA-T3 interface either back to the interface or from the network back out toward the network. Use the no form of the command to remove the loop.

The following examples of the loopback {dte local network {line payload} remote} command configure loopback modes on serial port 0 of a one-port PA-T3 serial port adapter installed in chassis slot 6 of a Cisco 7200 series router:

•Set the interface into loopback data terminal equipment (DTE) mode as follows:

Router# configure terminal

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

router(config)# interface serial 6/0

router(config-if)# loopback dte

Loopback DTE loops the router output data back toward the router (after the line interface unit [LIU]).

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Contents PA-T3 Serial Port Adapter Installation and Configuration Corporate HeadquartersPage Preface ObjectivesOrganization Section Title DescriptionRelated Documentation Related Documentation Section Title DescriptionCisco Connection Online Cisco Connection OnlineCisco Documentation CD-ROM Cisco Documentation CD-ROMOverview Port Adapter OverviewPA-T3 Serial Port Adapter Features PA-T3 Serial Port Adapter FeaturesManagement Information Base Management Information Base4PA-T3 Serial Port Adapter Installation and Configuration Preparing for Installation Parts and Tools RequiredPA-2T3 Software and Hardware RequirementsSoftware and Hardware Requirements Router show version PA-T3 Port Adapter LEDsPA-T3 Port Adapter LEDs LEDs for Uplink Port Status Color State DescriptionFeature Compatibilities of PA-T3 Serial Port Adapter DSUs PA-T3 Receptacles and CablesPA-T3 Receptacles and Cables Full Rate Scrambling Subrate MDL 1 SupportSafety Guidelines Safety GuidelinesElectrical Equipment Guidelines Telephone Wiring GuidelinesElectrical Equipment Guidelines FCC Class a Compliance FCC Class a CompliancePreventing Electrostatic Discharge Damage FCC Class a Compliance 10PA-T3 Serial Port Adapter Installation and Configuration VIP2 and the PA-T3 Port Adapter OverviewOverview Dimm U5PA-T3 in port adapter Slot PA-T3 in port adapter slot Removing a Port Adapter Removing a Port AdapterInstalling a Port Adapter Installing a Port AdapterH3152 Installing a Port Adapter 8PA-T3 Serial Port Adapter Installation and Configuration Catalyst RSM/VIP2 and the PA-T3 Port Adapter Standoff Removing a Port Adapter Installing a Port Adapter Aligning a Port Adapter in a Port Adapter Slot 6PA-T3 Serial Port Adapter Installation and Configuration Cisco 7200 Series PA-T3 Port Adapter Port adapter Handle Lever unlocked Position Handling a Port Adapter Port adapter Handle Cisco uBR7200 Series and the PA-T3 Port Adapter 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-T3 Serial Port Adapter Installation and Configuration Configuring the PA-T3 Interfaces Using the Exec Command Interpreter Using the Exec Command InterpreterIdentifying Port Adapter Slot and T3 Interface Port Numbers Cisco 7200 Series and Cisco uBR7200 Series PortsCisco 7200 Series and Cisco uBR7200 Series Ports Serial Port Number Example-CiscoVIP2 Ports Identifying Port Adapter Slot and T3 Interface Port NumbersCatalyst RSM/VIP2 Ports Catalyst RSM/VIP2 PortsCisco 7100 Series Ports PA-T3 Serial Port Adapter in the CatalystInterface Subcommand Syntax Platform Command Example Router# configure terminalShutting Down an Interface Shutting Down an InterfaceRouterconfig-if#interface serial 1/0 Routerconfig-if#interface serial 1/1Routerconfig-if#interface serial 1/1/0 Routerconfig-if#interface serial 1/1/1Routerconfig# interface serial 1/0 Router# copy running-config startup-config OKRouter# show interfaces serial 1/0 Router# show interfaces serial 1/1/0Performing a Basic Configuration Routerconfig# interface serial 1/1/0Routerconfig# interface serial 3/0 Performing a Basic ConfigurationConfiguration Example Configuration ExampleSetting the Bandwidth Defining the DSU ModeCustomizing the PA-T3 Serial Port Adapter Enabling T3 ScramblingSetting the Cable Length Configuring Cyclic Redundancy ChecksSpecifying T3 Framing Specifying T3 FramingChecking the Configuration Using show Commands to Verify StatusChecking the Configuration Show running-config command. Display Router# show interfaces serial 2/0 Router# show controllers 2/0 Router# show controllers serial 3/0Febe Router# show controllers serial 10/0/0 Serial10/0/0Router# show controllers serial 0/0 Serial0/0 Router# show version20PA-T3 Serial Port Adapter Installation and Configuration Router# show diag Router# show controllers cbus 1/0/0 Router# show controllers cbus 0/0 Routerconfig# interface serial 6/0 Using the ping Command to Verify Network ConnectionUsing the loopback Command to Verify the Physical Interface Set the interface into local loopback mode as follows Using the loopback Command to Verify the Physical Interface26PA-T3 Serial Port Adapter Installation and Configuration Cisco 7100 Series and the PA-T3 Port Adapter Cisco 7120 Series Router-Port Adapter Slot 3 LocationCisco 7140 Series Router-Port Adapter Slot 4 Location Installing a Port Adapter Guides
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