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PA-4R Half-Duplex Token Ring Port Adapter Installation and Configuration
OL-3589-01
VIP2 and the 4R Port Adapter
For example, the addresses for the 4R interface ports on the first port adapter on a VIP2 (see ) are 3/0/0
through 3/0/3 (chassis slot 3, port adapter slot 0, and interface ports 0 through 3). If the 4R port adapter
were installed in port adapter slot 1, the interface addresses would be 3/1/0 through 3/1/3.
Note If you remove the 4R-equipped VIP2 (shown in ) from chassis slot 3 and install it in slot 2, the addresses
of those same ports become 2/0/0 through 2/0/3.
Figure 14 4R Token Ring Interface Port Number Example (Cisco 7505 Shown)
You can identify interface ports by physically checking the slot/port adapter/interface port location on
the back of the router or by using software commands to display information about a specific interface
or all interfaces in the router.
Using the EXEC Command Interpreter
You can modify the startup configuration for Cisco 7500 series routers through the software command
interpreter called EXEC. To configure the interfaces for interface processors, you can use either one of
the setup or configure EXEC commands.
The setup command facility can be used after first time startup to make basic changes at any time. The
changes you make will affect only the changed elements’ current memory values that are stored in
nonvolatile memory.
The configure privileged EXEC command enables you to perform advanced configurations such as
specifying interfaces. The EXEC interprets the commands you enter and carries out the corresponding
operations. You can list available EXEC commands by entering a question mark (?). You also can enter
a question mark to obtain more information about commands. For example, enter terminal ? to obtain
a list of terminal commands or show ? to obtain a list of show commands.
Before you use the setup or the configure command, you must have privileged access to the EXEC
command interpreter. The system prompt for the privileged level ends with a pound sign (#) instead of
an angle bracket (>). The EXEC enable command allows access to the privileged level, prompting for a
password if one has been set with the enable-password configuration command.
Follow these steps to enter the privileged level of the EXEC.
Step 1 At the EXEC prompt for a router, enter the enable command:
H5987
Slot 0
Slot 1
Slot 2
Slot 3
Interface
processor
slots
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ITCH PR
OCESSOR
4R port adapter
(port numbers 3/0/0, 3/0/1,
3/0/2, 3/0/3, from left to right)
FAST SER
IAL
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ENAB
IN USE
4/16 MB
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