Command Reference Guide

3Com Router 5000 Family and Router 6000 Family sdlc controller ● 165
Command Reference
sdlc controller
Purpose Use the sdlc controller command to configure the secondary station address of
the SDLC.
Use the undo sdlc controller command to delete the secondary station
address of the SDLC.
Syntax sdlc controller sdlc-address
undo sdlc controller sdlc-address
Parameters sdlc-address
The secondary station address of the SDLC.
Default By default, the secondary station address of the SDLC is not configured.
Example Configure the secondary station address of the SDLC on the Serial1/0/0 as 0x05.
[3Com -Serial1/0/0] sdlc controller 05
View This command can be used in the following views:
■ Synchronous Serial Interface view
Description The SDLC protocol permits several virtual circuits running on a single SDLC physical
link, with one end connected with the primary station and the other end connected
with the secondary station. In order to distinguish each virtual circuit, their SDLC
addresses need to be designated. Because the SDLC is in unbalanced mode, a primary
device can connects with several secondary devices through the medium of shared
machine or SDLC switch, while the secondary devices cannot be connected with each
other. And there can exist one and only primary device if any. In this sense, the SDLC
devices in the same group can be guaranteed to communicate with each other
normally only if the addresses of the secondary devices are specified. This command
specifies the SDLC address, which is unique on a physical interface, for the virtual
circuit. The configured SDLC address on synchronous serial interface is virtually the
address of the SDLC secondary station.
The SDLC address ranges from 0x01 to 0xFE. The SDLC address of a router is only
valid on one physical interface, that is, the SDLC addresses configured on different
interfaces can be same.