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Checking the Configuration
PA-4T+ Synchronous Serial Port Adapter Installation and Configuration8-14
Table 8-1 Half-Duplex Timer Default Settings
Configuring Bisync
To configure PA-4T+ interfacesfor Bisync operationin Cisco 7200series routers, referto the“Block
Serial Tunneling (BSTUN)” section of the “Configuring Serial Tunnel (STUN) and Block Serial
Tunnel (BSTUN)” chapter of the Bridging and IBM Networking Configuration Guide.
Checking the Configuration
After configuring the new interface, use the show commands to display the status of the new
interface or all interfaces and the ping and loopback commands to check connectivity.
Using show Commands to Verify the New Interface Status
Use the following steps tiuse 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 serial interfaces.
Step 2 Displayall the current interface processors and theirinterfaces with the show controllers
command. Verify that the new PA-4T+ appears in the correct slot.
Step 3 Specify one of the new interfaces:
• Cisco 7100 series, Cisco 7200 series or Cisco uBR7200 series routers—Use the
show interfaces [type slot/port] command.
• VIP2—Use the show interfaces type slot/port-adapter/port command.
Verify that the first line of the display specifies the interface with the correct slot number.
Also verify that the interface and line protocol are in the correct state: up or down.
Step 4 Display the protocols configured for the entire system and specific interfaces with the
show protocols command. If necessary, return to configuration mode to add or remove
protocol routing on the system or specific interfaces.
Step 5 Display the running configuration file with the show running-config command. Display
the configuration stored in NVRAM using the show startup-config command. Verify
that the configuration is accurate for the system and each interface.
If the interface is down and you configured it as up, or if the displays indicate that the hardware is
not functioning properly, ensure that the network interface is properly connected and terminated. If
you still have problems bringing the interface up, contact a service representative for assistance.
Timer Command Syntax
Default Settings
(Milliseconds)
CTS delay half-duplex timer cts-delay 0
CTS drop timeout half-duplex timer cts-drop-timeout 250
DCD drop delay half-duplex timer dcd-drop-delay 100
DCD transmission start delay half-duplex timer dcd-txstart-delay 100
RTS drop delay half-duplex timer rts-drop-delay 3
RTS timeout half-duplex timer rts-timeout 3
Transmit delay half-duplex transmit-delay 0