3Com 10014299 manual Configure maximum receivable frame length of Sdlc

394CHAPTER 25: CONFIGURING DLSW

By default, the modulo value of SDLC is 8.

dConfigure Maximum Receivable Frame Length N1 of SDLC

Maximum frame length of SDLC refers to byte number of maximum transmissible and receivable message, not including parity bit and stop bit.

Please process the following configurations in the synchronous interface view.

Table 457 Configure maximum receivable frame length of SDLC

Operation	Command
Configure Maximum Receivable Frame Length of SDLC	sdlc	max-pdu n
Restore the default value of maximum receivable frame	undo	sdlc max-pdu
length of SDLC

By default, the maximum receivable frame length of SDLC is 265 bytes.

Generally, the length is 265 for some PU2.0 equipment and 521 for IBM AS/400. We often need to configure our equipment to be of the same values as the connected SDLC equipment.

eConfigure Retransmission Number N2 of SDLC

The retransmission number N2 of SDLC refers to the retransmission number before receiving no acknowledgement packet sent by the other part.

Please process the following configurations in the synchronous interface view.

Table 458 Configure retransmission number of SDLC

Operation	Command
Configure retransmission number of SDLC	sdlc	max-transmission
	retries
Restore the default value of the retransmission	undo	sdlc max-transmission
number of SDLC

By default, the retransmission number of SDLC is 20.

fConfigure Poll Time Interval of SDLC

Poll time interval of SDLC refers to wait time interval between two SDLC nodes polled by SDLC primary station.

Please process the following configurations in the synchronous interface view.

Table 459 Configure poll time interval of SDLC

Operation	Command
Configure poll time interval of SDLC	sdlc	timer poll mseconds
Restore the default value of poll time interval of SDLC	undo	sdlc timer poll

By default, the poll time interval of SDLC is 100 ms.

gConfigure SAP address for transforming SDLC to LLC2

When transforming SDLC message to LLC2 message, it needs both SAP and MAC addresses. This command is used to specify SAP address used when transforming LLC2 for a SDLC byte.

Generally, the SAP address used by SNA protocol is 0x04, 0x08 or 0x0C. Please process the following configurations in the synchronous interface view.