Table Of Contents
Release Notes for Cisco MC3810 for
Cisco IOS Release 12.0Determining Your Cisco IOS Software Release
Serial Interface Command Change in Release 12.0(1)
Using the Cisco MC3810 with the PSTN
Resolved Caveats-Release 12.0(2)
Cisco IOS Software Document Set
Release 12.0 Documentation Set
Software Configuration Tips on the Cisco TAC Home Page
Release Notes for Cisco MC3810 for
Cisco IOS Release 12.0
December 7,1998
These release notes describe new features for the Cisco MC3810 multiservice access concentrator that support Cisco IOS Release 12.0, up to and including Release 12.0(2). Cisco IOS Release 12.0(2) is based on Cisco IOS Release 12.0(1). These release notes are updated with each maintenance release of the Cisco IOS software, which is typically every 6 weeks.
Use these release notes in conjunction with the Release Notes for Cisco IOS Release 12.0 located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
For a list of software caveats that apply to Release 12.0(2), see the "Caveats" section.
Contents
These release notes discuss the following topics:
Introduction
As part of an enterprise backbone or as customer premises equipment (CPE) to service provider-managed network services, the Cisco MC3810 multiservice access concentrator reduces operating costs and complexity and increases network throughput and performance. Interoperable with the broad Cisco networking portfolio, the Cisco MC3810 is a practical investment in today's networking requirements and a strategic investment in converging data, voice, and video applications. The MC3810 is fully supported by Cisco IOS software for multiprotocol routing, bridging, and Systems Network Architecture (SNA).
To make file management easier, the Cisco MC3810 provides a complete file system for software images, message files, and reports. The standard Flash memory size is 8 MB, and a 16-MB upgrade option is available. The 16-MB version can hold two code images simultaneously for fail-safe upgrades.
Management and configuration of the Cisco MC3810 should be familiar to the Cisco IOS user and compatible with existing management systems. As such, it provides a superset of the Cisco command-line interface (CLI). The Cisco MC3810 can be managed by standard Cisco management platforms and facilities such as CiscoView and the native remote log-in facilities provided by Telnet and rlogin. Three types of configuration interfaces are provided:
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Cisco CLI
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The HTTP-based interface allows configuration from any Web browser such as Netscape Navigator or Microsoft Explorer. The SNMP MIB allows management of the Cisco MC3810 from SNMP managers (for example, HP OpenView).
System Requirements
This section describes the system requirements for Release 12.0(2) and includes the following sections:
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Memory Requirements
Table 1 lists the memory requirements for the Cisco MC3810 multiservice concentrator for Cisco IOS Release 12.0(2).
Hardware Supported
Cisco IOS Release 12.0(2) supports the Cisco MC3810 multiservice access concentrator platform.
Determining Your Cisco IOS Software Release
To determine the version of Cisco IOS software currently running on the Cisco MC3810 multiservice access concentrator, log into the platform and use the show version EXEC command. The following is sample output from the show version command. The version number is indicated on the second line as shown below.
Cisco Internetwork Operating System Software IOS (tm) MC3810 Software (mc3810-binr3v2-mz), Version 12.0(2), RELEASE SOFTWAREAdditional command output lines include more information such as processor revision numbers, memory amounts, hardware IDs, and partition information.
Updating to a New Release
At the time of printing, no product bulletins were available for upgrading to Cisco IOS Release 12.0. For general information on updating to a new software release, refer to the Cisco IOS Software Release Upgrade Paths and Packaging Simplification product bulletin located on CCO. On CCO, follow this path:
Products and Ordering: More Information: Product Bulletins. Scroll to Software. Under Cisco IOS 11.3, click the Upgrade Paths bulletin.
This bulletin does not contain information specific to Release 12.0, but it does provide updating information that might apply to Release 12.0.
Feature Set Table
Cisco IOS software is packaged in feature sets (also called software images) depending on the platform. Each feature set contains a specific set of Cisco IOS features. The following section lists the feature set matrix and the features supported by each feature set.
The feature set matrix (see Table 2) shows the feature set organization and lists which feature sets are available on the MC3810 for Release 12.0(2), including the feature set name, the feature set matrix term, the software image name, and the platforms supported.
Table 2 lists the features and feature sets supported by the Cisco IOS Release 12.0 for the MC3810 platform. This table uses the following conventions to identify features:
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Table 2 Cisco IOS Feature Set for the Cisco MC3810
IBM/Voice
IBM/ATM/VoiceNo
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
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
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Stubby-Areas (NSSA)Yes
Yes
Yes
Yes
Yes
Yes
dent Multicast (PIM)Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
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Yes
Yes
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Yes
Yes
Yes
tary RADIUS AttributesYes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
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Yes
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Yes
Yes
Yes
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Yes
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Yes
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Yes
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Yes
Yes
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Yes
Yes
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Yes
No
No
No
DemandNo
No
No
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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Yes
Yes
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Yes
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Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
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No
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No
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No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
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No
No
Yes
Yes
Yes
No
No
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No
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No
1 Voice signaling on CES is not available.
2 ATM PVCs only. SVCs are not supported.
3 Includes T1 CAS protocols, plus UK Standard CAS (Mercury protocol) and CEPT standard E&M.
4 Applicable to data-only interfaces.
Caution
Important Notes
This section contains important information about use of your Cisco IOS release 12.0 software.
Serial Interface Command Change in Release 12.0(1)
Beginning with Cisco IOS Release 12.0(1), the interface serial 2 designation on the Cisco MC3810 is no longer valid. Depending on the application, you enter different designations for this interface as follows:
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Deprecated MIBs
Because the older Cisco Management Information Bases (MIBs) do not scale well across Cisco products, they will be replaced in a future release. As an initial step toward this, the OLD-CISCO-* MIBS are being deprecated now. This has no immediate impact on any Cisco existing Cisco IOS product or network management system (NMS) application. Application developers need to be aware that the following MIBS are being discontinued and should update their applications accordingly. lists the deprecated MIBs.
Using the Cisco MC3810 with the PSTN
This section describes important notes regarding use of the Cisco MC3810 with the Public Switched Telephone Network (PSTN).
Connections to the PSTN
Be careful when connecting switched voice ports on the Cisco MC3810 directly to the PSTN because improper configurations can expose the corporate network to telephone fraud.
Switched Access from the PSTN
The Cisco MC3810 has the capability to connect a user from the PSTN directly to the corporate wide-area telephone network. As a phone switch, the Cisco MC3810 can be configured to switch the user to any location in that network, even remote locations that are connected again to another PSTN. However, the Cisco MC3810 does not provide any mechanism to restrict users from calling after they are connected. Without proper network design, this condition could result in the unauthorized use of the corporate network for making calls at the corporation's expense. To prevent this from occurring, Cisco recommends that companies do not connect a switched voice interface on the Cisco MC3810 directly to the PSTN. Instead, connect the interface to a PBX that implements a security scheme designed to prevent unauthorized use.
Non-Switched Calls
The same opportunity for illicit use does not exist for non-switched call types such as pass-through connections (although the possibility for fraud does exist at the direct contact point). Pass-through calls create a path to only a single location specified by the network administrator. For example, a pass-through connection might be used to pass a trunk from a PBX to the PSTN. In this case, the trunk on the PBX will always pass straight through the Cisco MC3810 to the PSTN. As a result, the necessary security is provided by the PBX.
Caveats
This section contains open and resolved caveats for the Cisco IOS Software Release 12.0(2) maintenance release as it applies to the Cisco MC3810 product. This is a partial list. For the complete list of caveats in the Cisco IOS Release12.0, refer to the "Caveats" section in the cross-platform Release Notes for Cisco IOS Release 12.0 document located on CCO and the Documentation CD-ROM. This section contains caveats affecting all maintenance releases.
Note
Open Caveats-Release 12.0(2)
This section describes possibly unexpected behavior by Release 12.0(2). This section describes only severity 1 and 2 caveats.
Basic System Services
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When configuring a Cisco MC3810 for common-channel signaling (CCS) cross-connect, calls may stop being connected after a period of time.
Resolved Caveats-Release 12.0(2)
All the caveats listed in this section are resolved in Release 12.0(2). This section describes only severity 1 and 2 caveats.
Basic System Services
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A Cisco MC3810 with both a Multi-Flex Trunk (MFT) and a Digital Voice Module (DVM) installed may see T1 clock slips on the T1 controllers under certain circumstances. Clock slips are reported when viewing the T1 controller statistics with the exec command show controller t1.
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There appears to be a problem with signaling on timeslot 1 of a tdm-group configuration.
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Network Time Protocol (NTP) on the Cisco 2600 series and MC3810 platforms does not stay synchronized. After approximately five minutes, the clock wanders and NTP unsynchronizes. Removing the NTP configuration and adding it back causes the router to synchronize again, but later it becomes unsynchronized.
IP Routing Protocols
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In some network configurations, a Cisco MC3810 reloads with a CPU exception error,
reason = FORCE_CRASH(959fd4).Related Documentation
The following sections describe the documentation available for the Cisco MC3810 multiservice access concentrator. Typically, these documents consist of hardware installation guides, software installation 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 the Documentation CD-ROM. These electronic documents might contain updates and modifications made after the hard-copy documents were printed.
These release notes should be used in conjunction with the documents listed in the following sections:
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Release-Specific Documents
CCO and the Documentation CD-ROM contain documents specific to Release 12.0.
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To navigate to Release Notes for Cisco IOS Release 12.0, follow this path on CCO:
Products & Ordering: Documentation: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes
To navigate to the same document on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes for Cisco IOS Release 12.0
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To navigate to the Software Center, follow this path on CCO:
Software & Support: Software Center
Platform-Specific Documents
These documents are also available online at Cisco Connection Online (CCO) and on the Documentation CD-ROM. Documentation for spare parts can be found at the same location.
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To access platform documents on CCO, follow this path:
Products and Ordering: Cisco Documentation: Access Servers and Access Routers: Multiservice Access Concentrators
To access hardware documents on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Access Servers and Access Routers: Multiservice Access Concentrators
Cisco IOS Software Document Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. These documents are shipped with your order in electronic form on the Documentation CD-ROM, unless you specifically ordered the printed versions.
Documentation Modules
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Each configuration guide can be used in conjunction with its corresponding command reference.
To access these documentation modules on CCO, follow this path:
Products & Ordering: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Cisco IOS Release 12.0 Configuration Guides and Command References
To access these documentation modules on the Documentation CD-ROM, follow this path:
Cisco IOS Software Configuration: Cisco IOS Release 12.0: Cisco IOS Release 12.0 Configuration Guides and Command References
Release 12.0 Documentation Set
details the contents of the Cisco IOS Release 12.0 software documentation set. The document set is available in electronic form, and also in printed form upon request.
Note
To access the Cisco IOS documentation set on CCO, follow this path:
Products and Ordering: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0
To access the Cisco IOS documentation set on the Documentation CD-ROM, follow this path:
Cisco IOS Software Configuration: Cisco IOS Release 12.0
Service and Support
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section "Service and Support" in the information packet that shipped with your product.
Note
For service and support for a product purchased directly from Cisco, use CCO.
Software Configuration Tips on the Cisco TAC Home Page
For helpful tips on configuring Cisco products, follow this path on CCO:
Software & Support: Technical Tips (button on left margin)
"Hot Tips" are popular tips and hints gathered from Cisco's Technical Assistance Center (TAC). Most of these documents are also available from the TAC's Fax-on-Demand service. To access Fax-on-Demand and receive documents at your fax machine, call 888-50-CISCO (888-502-4726). From international areas, call 650-596-4408.
The following sections are provided from the Technical Tips page:
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Cisco Connection Online
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
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For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Note
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
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