Table Of Contents
Release Notes for Cisco 2600 Series for
Cisco IOS Release 12.0(2)XDDetermining Your Software Release
New Features in Release 12.0(2)XD
New Features in Release 12.0(1)T
Cisco IOS Firewall Feature Set Platform Support
Data Compression Advanced Interface Module
Open Caveats - Release 12.0(2)XD
Resolved Caveats - Release 12.0 T
Novell IPX, XNS, and Apollo Domain
Cisco IOS Software Document Set
Documentation Modules and Indexes
Release 12.0 Documentation Set
Software Configuration Tips on the Cisco TAC Home Page
Release Notes for Cisco 2600 Series for
Cisco IOS Release 12.0(2)XD
December 7, 1999
These release notes describe new features for the Cisco 2600 series routers that support Cisco IOS Release 12.0(2)XD. Cisco IOS Release 12.0(2)XD is based on Cisco IOS Release 12.0(2)T.
Use these release notes in conjunction with the cross-platform Release Notes for Cisco IOS Release 12.0 T located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
For a list of software caveats that apply to Release 12.0(2)XD, refer to the "Caveats" section.
Contents
These release notes discuss the following topics:
Introduction
Cisco 2600 series routers are cost-effective, modular access routers designed to enable customers to easily adopt future technologies and scale to accommodate network expansion, thereby protecting technology investments. The Cisco 2600 series offers network managers and service providers an attractively-priced solution for extending the versatility, integration, and power of the Cisco 3600 series to smaller branch offices. The Cisco 2600 shares modular interfaces with the popular Cisco 1600 and Cisco 3600 series, offering a solution both for today's branch office needs and increasing demands for applications such as:
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Multiservice data/voice/video integration
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Early Deployment Releases
This release notes is based on the Cisco 2600 for Cisco IOS Release 12.0(2)T. Release 12.0 T is an Early Deployment (ED) release, delivering both fixes to software caveats and support for new Cisco hardware. The following table briefly describes some of the ED releases currently available for the Cisco 2600 series.
System Requirements
This section describes the system requirements for Release 12.0(2)XD and includes the following sections:
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Memory Requirements
describes the memory requirements of the Cisco IOS feature sets for the Cisco 2600 series for Release 12.0(2)XD. All "Plus" feature sets include voice network support.
Hardware Supported
Cisco IOS Release 12.0(2)XD supports the Cisco 2600 series routers:
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For detailed descriptions of the new hardware features for Release 12.0, refer to the cross-platform Release Notes for Cisco IOS Release 12.0. lists the interfaces supported on the Cisco 2600 series.
Table 3 Supported Interfaces on the Cisco 2600 Series
1- or 2-port Ethernet (10BaseT)
Cisco 2610, Cisco 2611, Cisco 2612
1-port Token Ring (RJ-45)
Cisco 2612, Cisco 2613
1-port Ethernet
All Cisco 2600 series platforms
4-port Ethernet
All Cisco 2600 series platforms
1-port ATM-25 RJ-45 interface
All Cisco 2600 series platforms
6- or 32-port Asynchronous
All Cisco 2600 series platforms
4- or 8-port Asynchronous/ Synchronous Serial low speed
(128 kbps max)All Cisco 2600 series platforms
1- or 2-port Channelized T1/ISDN PRI
All Cisco 2600 series platforms
1- or 2-port Channelized T1/ISDN PRI with CSU
All Cisco 2600 series platforms
1- or 2-port Channelized E1/ISDN PRI balanced
All Cisco 2600 series platforms
1- or 2-port Channelized E1/ISDN PRI unbalanced
All Cisco 2600 series platforms
4-or 8-port ISDN BRI S/T interface
All Cisco 2600 series platforms
4- or 8-port ISDN BRI U (NT1) interface
All Cisco 2600 series platforms
8- or 16-port Analog modems
All Cisco 2600 series platforms
2-port ISDN BRI S/T TE Voice interface card
All Cisco 2600 series platforms
1- or 2- Voice interface card slots
All Cisco 2600 series platforms
2-port FXS Voice/Fax interface card2
All Cisco 2600 series platforms with Voice/Fax network modules
2-port E&M Voice/Fax interface card2
All Cisco 2600 series platforms with Voice/Fax network modules
2-port FXO Voice/Fax interface card2
All Cisco 2600 series platforms Voice/Fax network modules
1-port ISDN BRI S/T interface (requires external NT1)
All Cisco 2600 series platforms
1-port ISDN BRI (NT1) U
All Cisco 2600 series platforms
1-port 56/64-kbps DSU/CSU
All Cisco 2600 series platforms
1-port T1/Fractional T1 with DSU/CSU
All Cisco 2600 series platforms
1-port High-Speed Serial (up to 2.048 Mbps)
All Cisco 2600 series platforms
2-port Dual High-speed Serial (up to 2.048 Mbps; Synchronous/ Synchronous support)
All Cisco 2600 series platforms
2-port Asynchronous/ Synchronous (up to 128 kbps)
All Cisco 2600 series platforms
1 The Voice/Fax and ATM-25 network modules require Cisco IOS Plus feature sets.
2 This interface card requires the NM-1V or NM-2V network module.
Determining Your Software Release
To determine the version of Cisco IOS software currently running on a Cisco 2600 router, log into the router 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 SoftwareIOS (tm) 2600 Software (c2600-is-mz), Version 12.0(2)XD, RELEASE SOFTWAREAdditional command output lines include more information, such as processor revision numbers, memory amounts, hardware IDs, and partition information.
Upgrading to a New Release
For information on upgrading 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 & Ordering: More Information: Product Bulletins. Scroll to Software. Under Cisco IOS 12.0, click the Upgrade Paths bulletin.
Feature Set Table
To determine what features are available with each feature set, see and . The tables summarize what features you can use when running a specific feature set on a Cisco 2600 series router for Cisco IOS Release 12.0(2)XD. Both tables use the following conventions to identify features:
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New and Changed Information
The following sections list the new features supported by the Cisco 2600 for Cisco IOS Release 12.0(2)XD and Cisco IOS Release 12.0(1)T.
New Features in Release 12.0(2)XD
The following new features are supported by the Cisco 2600 in Cisco IOS Release 12.0(2)XD.
ISDN BRI VIC
The ISDN BRI VIC (Voice Interface Card) provides narrowband digital voice connectivity in Cisco's VoIP (and soon, VoFR) environments. It provides a client-side (TE) ISDN S/T physical interface for connection to an NT1 terminating an ISDN telephone network. Each of its two ports can carry two voice calls (one over each ISDN B channel) for a total of four calls per ISDN BRI card.
It is another VIC which supplements the current array of VICs, but is the first digital VIC available.
New Features in Release 12.0(1)T
The following new features are supported by the Cisco 2600 in Cisco IOS Release 12.0(1)T.
CLI String Search
The Command Line Interface (CLI) String Search feature allows you to search or filter any show or more command's output. This is useful when you need to sort though large amounts of output, or if you want to exclude output that you do not need to see. CLI String Search also allows for searching and filtering at --More-- paging prompts.
With the search function, you can begin unfiltered output at the first line that contains a regular expression you specify. You can specify a maximum of one filter per command to either include or exclude output lines that contain the specified regular expression.
A regular expression is any word, phrase, number, etc. that appears in show or more command output.
Cisco IOS Firewall Feature Set Platform Support
The Cisco IOS Firewall feature set extends the security technology currently available in Cisco IOS software to provide firewall specific capabilities:
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The Cisco IOS Firewall feature set adds advanced filtering capabilities to existing security functionality in Cisco routers. Some existing Cisco IOS security features include packet filtering via access control lists (ACLs), Network Address Translation (NAT), network-layer encryption, and TACACS+ authentication.
Data Compression Advanced Interface Module
The Data Compression Advanced Interface Module (AIM) provides hardware-based compression and decompression of packet data transmitted and received on the serial network interfaces of Cisco 2600 Series Routers without occupying the Port Module Slot, that might otherwise be used for additional customer network ports. Supported are the industry standard LZS and MPPC compression algorithms. The Data Compression AIM requires Cisco IOS Release 12.0(1) T, or later 12.0 T releases.
Mobile IP
Mobile IP provides users the freedom to roam beyond their home subnet while consistently maintaining their home IP address. This enables transparent routing of IP datagrams to mobile users during their movement, so that data sessions can be initiated to them while they roam; it also enables sessions to be maintained in spite of physical movement between points of attachment to the Internet or other networks. Cisco's implementation of Mobile IP is fully compliant with the Internet Engineering Task Force's (IETF's) proposed standard defined in Request for Comments (RFC) 2002.
Time-Based Access Lists
Time-based Access Lists allow you to implement access lists based on the time of day. To do so, you create a time range that defines specific times of the day and week. The time range is identified by a name, and then referenced by a function, so that those time restrictions are imposed on the function itself.
Currently, IP and IPX extended access lists are the only functions that can use time ranges. The time range allows the network administrator to define when the permit or deny statements in the access list are in effect. Prior to this feature, access list statements were always in effect once they were applied. Both named or numbered access lists can reference a time range.
Important Notes
This section contains important information about use of your Cisco IOS Release 12.0(2)XD software.
Deprecated MIBs
Older Cisco Management Information Bases (MIBs) will be replaced in a future release. OLD-CISCO-* MIBS are currently being migrated into more scalable MIBs, without affecting existing Cisco IOS products or NMS applications. Application developers should update from deprecated MIBs to the replacement MIBs as shown in the following table.
Caveats
This section contains the open caveats for the current Cisco IOS maintenance release only. The software caveats are also located in the Caveats for Cisco IOS Release 12.0 T document that accompanies these release notes.The caveats document is located on CCO and the Documentation CD-ROM.
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Open Caveats - Release 12.0(2)XD
This section describes possibly unexpected behavior by Release 12.0(2)XD. Unless otherwise noted, these caveats apply to all 12.0 releases up to and including 12.0(2)XD.
Basic System Services
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Configuring the layer3 switching with access filter in and out on the hssi interface with the Frame relay ietf encap, then try to configure the smds encap will cause the router to crash.
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When configuring a mc3810 for CCS cross-connect, it's possible that calls will stop getting connected after a period of time.
DECnet
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This problem is specific to the RSM platform and for DECnet over VLANs.
The code for DECnet support over VLANs uses a cache to store VLAN-header information, and this cache is used in the fast-switch path.
When there is a routing topology change, the fast-switching code continues to look at the stale cache entry, and as a result, packets destined via the new route end up getting black-holed.
The work-around is to disable DECnet fast-switching on the relevant interface.
IBM Connectivity
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Router running DLSw with FST/Direct/LLC2(Lite) encapsulations could crash.
Workaround for this is to use DLSw with TCP encapsulation.
Interfaces and Bridging
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FDDI PA will now have a software address filter at VIP level to filter out unwanted multicast packets. This helps performance and also unnecessary entries in netflow tables.
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If "no keepalive" (or 0 keepalive) is configured on fastethernet, the line will stay up even though the MII is removed or the cable is disconnected. If the interface is then reconfigured with "keepalive" (of non-zero value) while the physical media stayed down, the link would still indicate up. The only workaround is by doing a shut/no shut, or clear interface command.
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A large packet sent over a MLP bundle of over 2 links with VPDN on a ATM PPP tunnel on a ATM-Lite interface will be corrupted sometimes. A workaround is to disable the fastswitching on the ATM-lite interface.
IP Routing Protocols
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If ospf has both an external and a summary route to the same network and a partial spf run deletes the summary route, the external route will not be installed.
The external LSA may have the routing bit set, even if it is not installed in the routing table. This is caused by a failure to reset the external's routing bit when the summary route replaces the external route in the ip routing table. The following sequence of events illustrates the problem, given external and summary routes to network 1.0.0.0:
1. ospf installs external route to 1.0.0.0. The external LSA for 1.0.0.0 has its routing bit set 2. ospf installs summary route to 1.0.0.0, replacing the external route. The routing bit is not reset on the external LSA for 1.0.0.0. 3. ospf performs a partial spf to remove the summary route to 1.0.0.0. The external route to 1.0.0.0 is not installed. To add to the confusion, the routing bit is still set on the external LSA for 1.0.0.0.
Eclair ip route *' will force the installation of the external route. Alternatively, a'clear ip ospf redist' at the router that originates the external route will trigger installation of the external route.
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Guaranteed service flowspec in RSVP RESV messages must contain certain fields within a certain range (as indicated by RFC 2212). This fix puts these checks in the code
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With sync and certain topologies, some bgp routes may not get advertised after peer reset.
The workaround is to configure "no sync", or "clear ip bgp x.x.x.x".
ISO CLNS
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On all platforms which do not use the old mci controller, fast-switching of clns traffic with non-zero N-Selector does not work.
Miscellaneous
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When running 2523 and 2524 serial ports in asynchronous mode, modem control is only supported when using DTE style 5-in-1 cables (in order to connect to DCE devices). The DCE 5-in-1 cable (in order to connect to DTE devices) will not support modem control for the asynchronous mode. In order to support DTE devices with modem control, it is required to use the DTE style cables with a null modem adapter.
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When you configure Bisync (encapsulation bstun) with the ASCII character set (bsc char-set ascii) on the first port of a serial WIC (1T, 2T, or 2A/S) in WIC slot 0 of a Cisco 2600 series router, only the first character of each frame is received, and the BSTUN tunnel is not established. This only affects Bisync mode when it is configured with the ASCII character set. Other encapsulations are not affected, and using the EBCDIC character set with Bisync works correctly.
For the first serial port in WIC slot 0, the parity detection is not configured correctly for Bisync in ASCII mode. The first character of each frame generates a parity error that causes the receiver to discard the frame after the first character received.
Workaround: Use a different serial port: either the second serial port (port 1) on a 2T or 2A/S WIC in WIC slot 0 or any serial port in WIC slot 1. If you have only one serial WIC, moving it from WIC slot 0 to WIC slot 1 fixes this problem.
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When running Tag Switching and CEF on an Ethernet interface, it is possible for the interface to get into a state where the IP packets are not forwarded properly.
The problem occurs when a CEF entry is improperly pointing at a Tag data structure. To check whether this is the problem, do
show adjacency detail
for the next hop on the failing route. In the failure case, the packet counts on the "IP" adjacency will not be increasing, but those on the "TAG" one will.
Workaround: disable Tag switching on the interface
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When enrolling certificate with Entrust VPN, you might fail to get CA certificates. So far, this problem only happened on the Cisco 2500 platform and there is no work around. Please upgrade to the next build.
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In Release 11.2P and 11.3 when Fast Ethernet subinterfaces are configured for encryption, if the crypto map is only applied to the main interface and the IP address is configured in the subinterface, the packets could be switched in the clear. In Release 12.0, enabling CEF could cause the packets to get dropped.
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When you run TRISL to a Cisco 7000 family router, some frames larger than 1535 bytes might not be forwarded. This condition occurs when you run TRISL between two VLANs that are on switches.
Workaround: Do not use TRISL. Use an external device to router or bridge between the two different VLANs. Or modify the end devices so that they do not send packets larger than 1500 bytes.
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From enclosure: Release-note
A Cisco 1600 router or Cisco 3600 series router will reload when IPSEC is configured over the ISDN link. This condition is caused by the IP route-cache that is enabled by default on all interfaces.
The workaround is to turn off fast switching with the no ip route-cache command on the ISDN interfaces.
From enclosure: Release-note-2
This crash has also been seen on the 3600 platform.
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If a UDP packet with an invalid length is sent to port 514 (the "syslog" port) on an IOS device, the device is likely to crash, possibly without saving a stack trace. Such packets are sent by the popular "nmap" port scanning program.
Wide-Area Networking
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StatusMsg with endpointRef is not processed in multipoint state table. This could result in releasing multipoint vc.
Resolved Caveats - Release 12.0 T
All the caveats listed in this section are resolved in release 12.0(2)T.
IP Routing Protocols
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workaround:
The workaround is to configure "router rip" on the router first, before configuring the address on the interface.
Miscellaneous
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RADIUS accounting does not work if you have separate authentication and accounting servers.
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An IP client might not be able to ping the Route Switch Module (RSM). This situation might occur during Token-Ring Virtual LAN (TR VLAN) configuration on the RSM. It is most common when the IP client sends an address resolution protocol (ARP) without a routing information field (RIF), then sends an ARP with a RIF. The situation might also occur if the concentrator relay function (CRF), to which the client is connected, is configured for source-route bridging (SRB). Workaround: Change the CRF mode from SRB to source-route transparent (SRT) bridging.
Novell IPX, XNS, and Apollo Domain
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The Internetwork Packet Exchange (IPX) input process might run out of stack, causing a system reload or reduced performance. There is no workaround.
Related Documentation
The following sections describe the documentation available for the Cisco 2600. 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 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
The following documents are specific to Release 12.0 T, on which Release 12.0(2)XD is based. They are located on CCO and the Documentation CD-ROM:
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To reach the cross-platform Release Notes for Cisco IOS Release 12.0 T on CCO, follow this path:
Software & Support: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes: Cross-Platform Release Notes for Cisco IOS Release 12.0 T
To reach the cross-platform Release Notes for Cisco IOS Release 12.0 on the Documentation CD-ROM, follow this path:
Cisco IOS Software Configuration: Cisco IOS Release 12.0: Release Notes: Cross-Platform Release Notes for Cisco IOS Release 12.0 T
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To reach these documents, refer to the Software Center at this path on CCO:
Software & Support: Software Center: Cisco IOS Software
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As a supplement to the caveats listed in the "Caveats" section in these release notes, see the Caveats for Cisco IOS Release 12.0 T document, which contains caveats applicable to all platforms for all maintenance releases of Release 12.0 T.
To reach the caveat document on CCO, follow this path:
Products & Ordering: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Caveats: Caveats for Cisco IOS Release 12.0 T
To reach the caveat document on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS 12.0: Caveats: Caveats for Cisco IOS Release 12.0 T
Note
Feature Modules
Feature modules describe new features supported by Release 12.0 T and are an update to the Cisco IOS documentation set. They consist of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the features modules are available online only. The feature module information is included in the next printing of the Cisco IOS documentation set.
To reach the feature modules on CCO, follow this path:
Products & Ordering: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: New Feature Documentation: New Features in Release 12.0 T
To reach the feature modules on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: New Feature Documentation: New Features in Release 12.0 T
Platform-Specific Documents
The documents listed in are available for the Cisco 2600 series. These documents are also available online at Cisco Connection Online (CCO) and on the Documentation CD-ROM.
To reach Cisco 2600 documentation on CCO, follow this path:
Products & Ordering: Cisco Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers
To reach Cisco 2600 documentation on the Documentation CD-ROM, follow this path:
Access Servers and Access Routers: Modular Access Routers: Cisco 2600 Series Routers
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 and Indexes
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.
On CCO and the Documentation CD-ROM, two master hot-linked indexes provide indexing information for the Cisco IOS software documentation set: an index for the configuration guides and an index for the command references. In addition, individual books contain a book-specific index.
To reach these indexes 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: Configuration Guide Master Index or Command Reference Master Index
To reach these indexes 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: Configuration Guide Master Index or Command Reference Master Index
To reach documentation related to an index entry, click on the page number following the entry.
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 reach the Cisco IOS documentation set on CCO, follow this path:
Products & Ordering: Cisco Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0
To reach the Cisco IOS documentation set on the Documentation CD-ROM, follow this path:
Cisco IOS Software Configuration: Cisco IOS Release 12.0
Table 8 Cisco IOS Software Documentation Set for Release 12.0
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Configuration Fundamentals Overview
Cisco IOS User Interfaces
File Management
System Management•
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Transparent Bridging
Source-Route Bridging
Token Ring Inter-Switch Link
Remote Source-Route Bridging
DLSw+
STUN and BSTUN
LLC2 and SDLC
IBM Network Media Translation
DSPU and SNA Service Point
SNA Frame Relay Access Support
APPN
NCIA Client/Server Topologies
Cisco Mainframe Channel Connection
Airline Product Set•
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Dial-In Port Setup
Dial-In Terminal Services
Dial-on-Demand Routing (DDR)
Dial Backup
Dial-Out Modem Pooling
Large-Scale Dial Solutions
Cost-Control Solutions
ISDN
X.25 over ISDN
VPDN
Dial Business Solutions and Examples•
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Interface Configuration Overview
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IP Addressing
IP Services
IP Routing Protocols•
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AppleTalk
Novell IPX•
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Apollo Domain
Banyan VINES
DECnet
ISO CLNS
XNS•
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AAA Security Services
Security Server Protocols
Traffic Filtering and Firewalls
IP Security and Encryption
Passwords and Privileges
Neighbor Router Authentication
IP Security Options•
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Switching Paths for IP Networks
Virtual LAN (VLAN) Switching and Routing•
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ATM
Frame Relay
SMDS
X.25 and LAPB•
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Voice over IP
Voice over Frame Relay
Voice over ATM
Voice over HDLC
Video Support
Universal Broadband Features•
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Classification
Scheduling
Packet Drop
Traffic Shaping
ATM QoS
SNA QoS
Line Protocols•
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1 This book will not be available until January 1999.
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 reach 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 reach 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 reach 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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