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speed; you must configure each interface for either 4 or 16 Mbps. For complete descriptions of the
configuration subcommands, refer to the Router Products Configuration Guide and Router Products
Command Reference publications.
In the following sample configuration, two new Token Ring interfaces are enabled and assigned ring
speeds and IP addresses using the configure command from the terminal (the config term
command); then the configuration is written to memory (using the write memory command).
router# enable
Password:
router# config term
Enter configuration commands, one per line.
Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z
interface token ring 0
ring-speed 16
ip address 145.22.4.67 255.255.255.0
no shut
interface token ring 1
ring-speed 4
ip address 145.22.4.68 255.255.255.0
no shut
^z
router# write memory
[ok]
router#
The following steps provide instructions for a basic configuration: enabling an interface, setting the
ring speed, and specifying IP routing. You may also need to enter other configuration subcommands,
depending on the requirements for your system configuration. (Configuration subcommands are
described in the Router Products Configuration Guide and Router Products Command Reference
publications.) Refer to the previous example as necessary.
Caution
By default, all interfaces are configured as shut down until you enter no shut. After you
enter no shut (or if the interface is already configured as up), the interface is inserted into the ring
as soon as your press Return. Failure to match the interface speed to the ring speed will bring down
the ring. The speed of each interface on the CSC-C2CTR must be configured to match the speed of
the ring to which the interface is connected; only values of 4 or 16 will be accepted by the system.
Each interface on the CSC-C2CTR can be configured for either 4 or 16 Mbps (for instance, Token
Ring interface 0 can be set for 4 Mbps and Token Ring interface 1 set for 16 Mbps).
The following steps provide line-by-line instructions for configuring the interfaces. Refer to the
previous examples as necessary.
Step 1
To enter the EXEC command level, enter enable and the appropriate password and the
system prompt.
Enter configuration mode by entering the following:
Step 2
configure terminal <Return>
At the prompt, specify the first Token Ring interface to configure by entering the following:
Step 3
interface token ring 0 <Return>
ciscoBus Token Ring Card and Applique Installation and Upgrade Instructions
Configuring the Interfaces
31
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