3Com 3031 Command Reference Manual page 532

532 C 5: N
HAPTER ETWORK
P
ROTOCOL
undo sdlc xid sdlc-address
View
Synchronous serial interface view
Parameter
sdlc-address: The SDLC address of the XID, which should be configured
beforehand.
xid-number: An integer with a length of 4 bytes, ranging from 1 to 0xFFFFFFFF.
The first 12 bits are network numbers, and the last 20 bytes are node numbers.
Description
Using the sdlc xid command, you can configure the XID of the SDLC. Using the
undo sdlc xid command, you can delete the XID of the SDLC.
By default, the synchronous serial interface has no XID of the SDLC.
The XID is the ID of a device in the SNA world. Generally speaking, there are two
kinds of devices: PU2.0 and PU2.1. The XID has been automatically configured on
the PU2.1 devices and they can announce their IDs by exchanging the XID. The
PU2.0 devices did not exchange the ID, so they can not get ID automatically.
Therefore, this command needs not to be configured on PU2.1 typed devices,
whereas it is needed to specify an XID for PU2.0 typed devices.
Example
Configure the XID of the SDLC, in which the xid-number is 0x2000.
[3Com3Com-Serial1/0/0] sdlc xid 05 2000