3Com MSR 30, MSR 50 manual Sdlc controller, Field Description

360CHAPTER 21: BASIC DLSW CONFIGURATION COMMANDS

Table 38 Description on the fields of the reset dlsw tcp command

Field	Description
Error: Wrong IP address	Invalid IP address entered
Error: No specified peer is found	The specified peer does not exist.

sdlc controller

Syntax sdlc controller sdlc-address

undo sdlc controller sdlc-address

View Synchronous serial interface view

Parameter sdlc-address: Address of the secondary SDLC station to be configured, in the range of 0x01 to 0xFE.

Description Use the sdlc controller command to configure the address of a secondary SDLC station address.

Use the undo sdlc controller command to delete the address of an secondary

SDLC station.

By default, no secondary SDLC station address is configured.

The SDLC protocol allows multiple virtual circuits to run on an SDLC physical link, with one end connected to the primary station and the other end connected to the secondary station. In order to distinguish different virtual circuits, you need to specify an SDLC address for each virtual circuit.

SDLC is an “unbalanced” protocol: a primary station can be connected with multiple secondary devices through a multi-user system or an SDLC switch, while the secondary devices cannot be connected with one another. Therefore, the communication between the primary station and each secondary station can be guaranteed as long as each secondary device is identified with an SDLC address. This command is used to specify an SDLC address for a virtual circuit, which is unique on a physical interface.

The configured SDLC address on a synchronous serial interface is actually the address of a secondary SDLC station.

■On the serial interface of the DLSw router connected with the primary SDLC station, you need to configure the address of each secondary SDLC station that communicates with the primary station.

■On the serial interface of the DLSw router connected with a secondary SDLC station, you need to configure the address of each secondary SDLC station connected with the serial interface.

An SDLC address ranges from 0x01 to 0xFE. The SDLC address of a router is valid on only one physical interface. That is, the SDLC addresses configured on different interfaces may be the identical.