Table Of Contents
Release Notes for ISDN Leased Line Support for C880 Platforms
Published: November 17, 2010OL-23614-01
These release notes describe the ISDN leased line support for C880 platforms. They should be used with the documents listed in the Related Documentation section.
These release notes are updated as needed. To ensure that you have the latest version of these release notes, go to http://www.cisco.com/en/US/products/hw/routers/ps380/prod_release_notes_list.html. In the Support box, click General Information > Release Notes and then find the latest release notes for your release.
This document contains the following sections:
The ISDN Leased Line Support for C880 Platforms feature allows the user to configure a dial-up interface to obtain a leased line, which is virtually a permanent connection. After an ISDN BRI interface is configured for access over leased lines, it is no longer a dialer interface, and signaling over the D channel no longer applies.
This feature configures the BRI interface to use the ISDN physical connection as a leased-line service.
For an ISDN line, you can use the following:
•Dial-on-Demand Routing (DDR) using snapshot routing—activated only when needed
•Permanent ISDN line lease
This section contains the following parts:
Table 1 lists the default memory configuration.
Table 1 Default Memory Configuration
Model Onboard Memory Memory Width Memory Configuration Memory Expansion Socket
256 MB-1 GB
One; 256 MB-1 GB
Table 2 lists the memory defaults and upgrade options of the C880 platforms.
The ISDN leased line supports the following Cisco 880 platforms:
The Cisco 880 models support two software images: Enhanced Security and Advanced IP Services.
Feature Set Tables
Table 3 lists the hardware feature matrix of C880 platforms.
Table 4 lists the ports availabilty for C880 platforms.
Limitations and Restrictions
The Cisco 880 series routers support ISDN leased-line speeds of 64 kbps and 128 kbps.
Table 5 describes the related documentation available for ISDN Leased Line Support for C880 Platforms.
This document is to be used in conjunction with the documents listed in the Related Documentation section.
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