Configuration Backup; Override; Configuration Examples; Configuring The 1-Port Hssi Network Module - Cisco 2620 Configuration Manual

Configuring the 1-Port HSSI Network Module

Configuration Backup

The AIC CLI provides commands for storing and restoring configurations. Users can transfer the current
configuration of the AIC to or from the TFTP server whose address is given as a parameter to the
get config command. When a configuration file is transferred from the server to the AIC, the AIC takes
on the new configuration.
The configuration is stored as a list of commands (script) that can be applied to the CLI of an AIC for
configuration.
Two other useful commands are the get image and put config commands. Use the get image command
to get a new image, and the put config command to back up the configuration to the TFTP server.
Backup is not automatic, but the AIC reminds the user, on logout, to back up the configuration.

Override

In the case that bad software is resident on the AIC or that the configured administrator password is lost,
the AIC provides a method for recovering the card. Upon booting, the AIC begins a countdown, visible
at the AIC local CLI (Craft Port). If an ASCII character is received on that local CLI channel (DSCC4
channel 2) during this countdown, the AIC enters a mode in which a limited CLI is available. At this
limited CLI, available over the Craft Port only, no login is necessary. The user may enter commands for
software upgrade and configuration transfer. The new configuration takes effect upon a reset of the AIC
card.
After interrupting the countdown, the user will see an AIC Boot]: prompt. From this prompt, the user
can enter "?" to see the available commands, "g" to get a new application image, or "d" to delete the
current configuration and return to the defaults. (All commands require a carriage return.) In the case of
the get command, the user will be prompted for the name of the file, the IP address of the TFTP server,
and a confirmation.

Configuration Examples

The following configuration examples are shown in
•
•
Configuring the 1-Port HSSI Network Module
The Cisco 3600 series 1-port high-speed serial interface (HSSI) network module provides full-duplex
connectivity at Synchronous Optical Network (SONET) OC-1/STS-1 (51.840 Mhz), T3 (44.736 MHz),
and E3 (34.368 MHz) rates in conformance with the EIA/TIA-612 and EIA/TIA-613 specifications. The
actual rate of the interface depends on the external data service unit (DSU) and the type of service to
which it is connected. This 1-port HSSI network module can reach speeds of up to 52 Mbps in
unidirectional traffic with 1,548-byte packets and 4,250 packets per second. Asynchronous Transfer
Mode (ATM), High-Level Data Link Control (HDLC), Point-to-Point Protocol (PPP), Frame Relay, and
Switched Multi-Megabit Data Service (SMDS) WAN services are all fully supported.
The 1-port HSSI network module provides the following benefits:
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
3-46
AIC IP Address Configuration Example, page A-16
IP Route to the AIC Configuration Examples, page A-20
–
With an Unnumbered IP Address, page A-20
–
Without an Unnumbered IP Address, page A-21
Chapter 3 Configuring with the Command-Line Interface
Appendix A, "Configuration Examples":
OL-1957-04