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Document ID: 12274
Contents
Introduction
Before You Begin
Conventions
Prerequisites
Components Used
Background Theory
Configuration Example
Related Information
Introduction
This document explains how to use the Synchronous Data Link Control (SDLC)address FF for local acknowledgement using the sdlc address FF ack-mode command.
Before You Begin
Conventions
For more information on document conventions, see the Cisco Technical Tips Conventions.
Prerequisites
To support certain applications that require local-termination of SDLC connection with address FF, the keyword "ack-mode" must be added to the sdlc address command to allow the user to configure the FF as a valid local address. This, in conjuction with the "local-ack" keyword in the stun route command, enables local-acknowledgement of SDLC address FF. This command should be used only if the SDLC address FF is used just like any other address and not as a broadcast address.
Components Used
This document is not restricted to specific software and hardware versions.
The information presented in this document was created from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.
Background Theory
The FF is an IBM-reserved address, typically used as a broadcast address. The original Serial Tunneling (STUN) design supports FF only in passthrough mode since the FF address is not a valid local SDLC address.
Configuration Example
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Cisco Router |
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stun peer-name xxx.xxx.xxx.xxx stun protocol-group 1 sdlc interface serial 1 encapsulation stun stun group 1 stun sdlc-role secondary sdlc address C1 sdlc address FF ack-mode stun route address C1 tcp yyy.yyy.yyy.yyy local-ack stun route address FF tcp yyy.yyy.yyy.yyy local-ack |
Note: The above description of the changes is taken from the Release Notes of the Bug ID CSCdi23181, which was used to commit this fix.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool (registered customers only) .
Related Information
| Updated: Sep 09, 2005 | Document ID: 12274 |