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November 2, 1998
These release notes describe the new features and significant software components for Cisco IOS Release 12.0(1)XA for the Cisco 1401 router.
These release notes discuss the following topics:
This section describes the system requirements for Release 12.0(1)XA and includes the following sections:
Table 1 describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.0(1)XA on the Cisco 1401 router.
| Platform/Feature Set | Image Name | Minimum Required Code Memory | Required Main Memory | Release 12.0 Runs from |
|---|---|---|---|---|
IP | c1400-ny-mz | 4 MB Flash | 12 MB DRAM | RAM |
IP Plus | c1400-nsy-mz | 4 MB Flash | 16 MB DRAM | RAM |
IP/IPX | c1400-ny-mz | 4 MB Flash | 12 MB DRAM | RAM |
IP/IPX Plus | c1400-nsy-mz | 4 MB Flash | 16 MB DRAM | RAM |
The Cisco 1401 router is an ATM-25 router for Digital Subscriber Line (DSL) networks that connects small businesses and remote branch offices to the Internet or to larger, corporate networks. The router features one 10BaseT and one ATM-25 interface to provide a seamless connection from a 10BaseT local area network (LAN) to an ATM network. The ATM-25 interface can be connected to an external, DSL modem to provide a connection of up to 8 Mbps to the Internet or to corporate networks.
Following are some of the key features of the Cisco 1401 router:
The Cisco IOS software is packaged into "feature sets" (also called "software images"). There are many different feature sets available, and each feature set contains a specific subset of Cisco IOS features. The Plus keyword is used to identify feature sets with a value-added option that contains a variable set of additional features depending on the hardware platform selected.
The following list shows which feature sets are supported on the Cisco 1401 router. These feature sets only apply to Cisco IOS Release 12.0(1)XA:
To determine what features are available with each feature set (software image), see Table 2. The table summarizes the features you can use when running a specific feature set on the Cisco 1401 router for Cisco IOS Release 12.0(1)XA. The feature set table uses the following symbol conventions to identify features:
| Feature Set | ||||
|---|---|---|---|---|
| Features | IP | IP Plus | IP/IPX | IP/IPX Plus |
| IP Routing |
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| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| LAN Support |
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| No | Yes | No | Yes |
| Management |
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| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Miscellaneous |
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| Yes | Yes | Yes | Yes |
| Protocols |
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| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Security |
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| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| WAN Services |
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| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| No | Yes | No | Yes |
| No | Yes | No | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes |
The following sections list the new features supported by the Cisco 1401 router in Cisco IOS Release 12.0(1)XA.
The following new features in Cisco IOS Release 12.0(1)XA are available for the Cisco 1401 router. Release 12.0(1)XA also supports the features in Cisco IOS Release 12.0(1)T, which are described in the Release Notes for Cisco IOS Release 12.0 T. To access this document, see the section, "Related Documentation."
The following new features in Cisco IOS Release 12.0(1)XA are available for the Cisco 1401 router.
This is the first Cisco IOS release to include support for the Cisco 1401 router.
This section describes warnings and cautions about using the Cisco IOS Release 12.0(1)XA software.
When using a multipartition flash card, the various flash partitions are referred to as "flash:1:", "flash:2:", etc. If you specify only "flash" in a multipartition flash, the parser assumes "flash:1:." For example, if you type "show flash all" the parser defaults to "show flash:1: all" and only the flash information for the first partition displays. To see information for all flash partitions, type "show flash ?" This will list all of the valid partitions. Then enter "show flash:xx: all" on each valid partition.
On the ATM25 interface of the C1400 there are two types of traffic shaping: hardware-based and software-based. Hardware-based traffic shaping is provided by the ATM SAR chip and is enabled on a per-pvc basis by one of the following IOS PVC configuration commands:
ubr <peak-cell-rate>
ubr+ <peak-cell-rate> <mininum-guaranteed-cell-rate>
vbr-nrt <peak-cell-rate> <sustainable-cell-rate> <maximum-burst-size>
The SAR chip has "rate counters" that control the rate at which the current buffer up for segmentation is going to be transmitted. Ideally, the SAR chip could be programmed with values for all of the above command parameters. Unfortunately, it only has the rate counters, which specify a divisor of the basic line rate of 25 Mbps and which really sets the maximum transmission rate (peak-cell-rate) for the channel. Note that with the "ubr" and "ubr+" commands, the rate counter for the PVC is obtained from the <peak-cell-rate> parameter. With the "vbr-nrt" command, the rate counter is obtained from the <sustainable-cell-rate> parameter. While the <mininum-guaranteed-cell-rate> parameter in the "ubr+" command and the <peak-cell-rate> parameter in the "vbr-nrt" command can be specified by the user, they are ignored by the ATM25 driver.
Software-based traffic shaping is enabled on a per-interface basis via the "traffic-shape" interface configuration command. For performance reasons, and since for ATM interfaces you most likely want to do shaping on a per-pvc basis, the ATM driver does not support software-based traffic shaping while fastswitching. However, if fast-switching is disabled and the "traffic-shape" interface configuration command is enabled, then software traffic shaping will occur. (See CSCdk28377 for more information).
There are no new caveats in Cisco IOS Release 12.0(1)XA. However, the caveats in Cisco IOS Releases 12.0(1) T apply to Release 12.0(1)XA. For descriptions of Cisco IOS Release 12.0 T caveats, see the Cisco IOS Software Release 12.0 T Caveats. To access this document, see the section, "Related Documentation."
The following sections describe the documentation available for the Cisco 1401 router. Typically these documents consist of hardware installation guides, software installation guide guides, Cisco IOS configuration and command references, system error messages, and feature modules, which are updates to the Cisco IOS documentation. Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online only.
The most up-to-date documentation can be found on the Web via Cisco Connection Online (CCO) and on the latest Documentation CD-ROM. These electronic documents might contain updates and modifications made after the paper documents were printed. For information on CCO, refer to the "Cisco Connection Online" section later in this document. For more information on to the CD-ROM, refer to the "Documentation CD-ROM" section later in this document.
The following sections describe the documentation related to these release notes:
Release 12.0(1)XA release notes should be used in conjunction with the Release Notes for Cisco IOS Release 12.0 T. This document describes the release from which the current special release is derived.
Additional documentation for Cisco IOS Release 12.0 T is listed below.
To access release-specific documentation on the documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco Product Documentation/Cisco IOS Software Configuration/Cisco IOS Release 12.0
The following documents apply to Cisco IOS Release 12.0(1)T:
Hardware documentation for the Cisco 1401 router is listed below. These documents ship with the Cisco 1401 router.
To access hardware documents on CCO, follow this path:
Products and Ordering: Cisco Documentation: Cisco Product Documentation/DSL Products/Cisco 1401
To access hardware documentation on the documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco Product Documentation/DSL Products/Cisco 1401
The following documents are specific to the Cisco 1401 router:
Cisco IOS software documentation is listed in Table 3. Software documentation consists of the Cisco IOS configuration guides and command references and also includes several supporting documents. These documents are shipped with the Cisco 1401 router in electronic form on the Documentation CD-ROM, unless you specifically ordered the printed version of the documents.
To access software documents on CCO, follow this path:
Products and Ordering: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0
To access software documentation on the documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0
| Books | Chapter Topics |
|---|---|
· Configuration Fundamentals Configuration Guide · Configuration Fundamentals Command Reference | Configuration Fundamentals Overview |
· Network Protocols Configuration Guide, Part 1 · Network Protocols Command Reference, Part 1 | IP Addressing |
· Network Protocols Configuration Guide, Part 2 · Network Protocols Command Reference, Part 2 | AppleTalk |
· Network Protocols Configuration Guide, Part 3 · Network Protocols Command Reference, Part 3 | Apollo Domain |
· Wide-Area Networking Configuration Guide · Wide-Area Networking Command Reference | ATM |
· Security Configuration Guide · Security Command Reference | AAA Security Services |
· Dial Solutions Configuration Guide · Dial Solutions Command Reference | Dial Business Solutions and Examples |
· Cisco IOS Switching Services Configuration Guide · Cisco IOS Switching Services Command Reference | Switching Paths for IP Networks |
· Bridging and IBM Networking Configuration Guide · Bridging and IBM Networking Command Reference | Transparent Bridging |
· Cisco IOS Software Command Summary · Dial Solutions Quick Configuration Guide · System Error Messages · Debug Command Reference |
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Posted: Sun May 14 22:03:14 PDT 2000
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