Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
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Chapter 2 Cisco IGX 8400 Series Cards
Universal Router Module
For information on Cisco IOS commands, use one of the following sources:
• “Cisco IOS Software Commands for the URM” section on page 2-103
• Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.1
• Cisco IOS Configuration Fundamentals Configuration Guide, Release 12.2
• Cisco IOS Release 12.1
• Cisco IOS Release 12.2
or use any other Cisco IOS documentation supporting the Cisco IOS release being run on your URM (see
the “Accessing User Documentation” section on page -xii).
Note Not all features supported by Cisco IOS software are available on the URM. Please refer to the specific
platform release notes and feature modules that apply to your Cisco IOS release for information on the
Cisco IOS features supported by your URM configuration.
URM Cisco IOS CLI Access—Switch Software Release 9.3.x and Earlier
Releases
Before Cisco WAN Switching Software Release 9.4.0, you could access the URM Cisco IOS CLI by:
• A physical connection to the console or Ethernet port on the URM back card.
• Entering the window {a | c} command when the SCM auxiliary (a) or control (c) port is directly
connected to the console port on the URM back card. You can enter the window command:
– Locally on the IGX when directly connected to the SCM control port, auxiliary port, or LAN
port (Telnet)
– Remotely through the vt (virtual terminal) command or in-band Telnet
URM Cisco IOS CLI Access—Switch Software Release 9.4.0 and Later Releases
With Cisco WAN Switching Software Release 9.4.0 and later releases, you can use the window slot
command to access the Cisco IOS CLI, including ROM monitor mode (ROMMON), of any URM in the
IGX chassis without a cable connecting the SCM to the URM console port.
To access ROMMON mode through the window session, the URM internal serial port must function as
the console port. This means that the URM external serial port must be configured to function as the
auxiliary port.
The URM Cisco IOS CLI window session feature:
• Uses the internal cellbus for the window session between the NPM and URM. This means that you do
not need to configure an IP address on the URM to use the window session feature.
• Uses a configurable escape string to close the window session. The escape string can be up to 8
characters long, and the default value is “^^”.
• Uses a configurable command timeout period to close an idle window session. The default command
timeout is 3 minutes.