Cisco Systems PA-T3 manual Checking the Conﬁguration, Using show Commands to Verify Status

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Checking the Configuration

For a Cisco 7100 series, Cisco 7200 series, or Cisco uBR7200 series router, use the following example:

router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z. router(config)#

router(config)# interface serial 3/0 router(config-int)#crc 32

Ctrl-z

For a VIP2, use the following example:

router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z. router(config)#

router(config)# interface serial 1/0/0 router(config-if)#crc 32

Ctrl-z

For a Catalyst RSM/VIP2, use the following example:

router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z. router(config)#

router(config)# interface serial 0/0 router(config-if)#crc 32

Ctrl-z

To disable CRC-32 and return to the default CRC-16 setting, specify the slot and port address (and the interface port number for a VIP2) and use the no crc 32 command. For complete command descriptions and instructions, refer to the related software documentation.

Note When enabling a 32-bit CRC on an interface, ensure that the remote device is also conﬁgured for a 32-bit CRC. Both the sender and the receiver must use the same CRC setting.

To check the interface conﬁguration using show commands, proceed to the following section, “Checking the Conﬁguration.”

Checking the Conﬁguration

After conﬁguring the new interface, use the show commands to display the status of the new interface or all interfaces, the ping command to check connectivity, and the loopback command to troubleshoot the physical interface.

Using show Commands to Verify Status

Use the show commands to verify that the new interfaces are conﬁgured and operating correctly:

Step 1 Use the show version command to display the system hardware conﬁguration. Ensure that the list includes the new interfaces.

Step 2 Display all the current port adapters and their interfaces with the show controllers command. Verify that the new PA-T3 serial port adapter appears in the correct slot.

8-14PA-T3 Serial Port Adapter Installation and Configuration

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Contents PA-T3 Serial Port Adapter Installation and Configuration Corporate HeadquartersPage Organization PrefaceObjectives 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 RequiredSoftware and Hardware Requirements Software and Hardware RequirementsPA-2T3 PA-T3 Port Adapter LEDs PA-T3 Port Adapter LEDsRouter show version LEDs for Uplink Port Status Color State DescriptionPA-T3 Receptacles and Cables Feature Compatibilities of PA-T3 Serial Port Adapter DSUsPA-T3 Receptacles and Cables Full Rate Scrambling Subrate MDL 1 SupportSafety Guidelines Safety GuidelinesElectrical Equipment Guidelines Telephone Wiring GuidelinesElectrical Equipment Guidelines Preventing Electrostatic Discharge Damage FCC Class a ComplianceFCC Class a Compliance 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 Identifying Port Adapter Slot and T3 Interface Port Numbers Using the Exec Command InterpreterUsing the Exec Command Interpreter 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 CatalystShutting Down an Interface Interface Subcommand Syntax Platform Command ExampleRouter# configure terminal Shutting Down an InterfaceRouterconfig-if#interface serial 1/1/0 Routerconfig-if#interface serial 1/0Routerconfig-if#interface serial 1/1 Routerconfig-if#interface serial 1/1/1Router# show interfaces serial 1/0 Routerconfig# interface serial 1/0Router# copy running-config startup-config OK Router# show interfaces serial 1/1/0Routerconfig# interface serial 3/0 Performing a Basic ConfigurationRouterconfig# interface serial 1/1/0 Performing a Basic ConﬁgurationConfiguration Example Conﬁguration ExampleCustomizing the PA-T3 Serial Port Adapter Setting the BandwidthDeﬁning the DSU Mode Enabling T3 ScramblingSpecifying T3 Framing Setting the Cable LengthConﬁguring Cyclic Redundancy Checks 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 Using the loopback Command to Verify the Physical Interface Using the ping Command to Verify Network ConnectionRouterconfig# interface serial 6/0 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