3Com 3031 Command Reference Manual page 524

524 C 5: N
HAPTER ETWORK
sdlc mac-map local
P
ROTOCOL
View
Synchronous serial interface view
Parameter
sdlc-address: The secondary station address of the SDLC.
Description
Using the sdlc controller command, you can configure the secondary station
address of the SDLC. Using the undo sdlc controller command, you can delete the
secondary station address of the SDLC.
By default, the secondary station address of the SDLC is not configured.
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.
Example
Configure the secondary station address of the SDLC on the Serial1/0/0 as 0x05.
[3Com-Serial1/0/0] sdlc controller 05
Syntax
sdlc mac-map local mac-address
undo sdlc mac-map local
View
Synchronous serial interface view
Parameter
mac-address: The virtual MAC address of the SDLC.
Description
Using the sdlc mac-map local command, you can configure the virtual MAC
address of the SDLC. Using the undo sdlc mac-map local command, you can
delete the virtual MAC address of the SDLC.
By default, the SDLC has no virtual MAC address.