3Com MSR 30, MSR 50 manual Sdlc xid, Undo sdlc xid sdlc-address

370CHAPTER 21: BASIC DLSW CONFIGURATION COMMANDS

Use the undo sdlc window command to restore the default setting.

By default, the maximum number of consecutive frames the device can send before receiving an acknowledgement from the peer is 7.

Example # Set the maximum number of consecutive frames the device can send before receiving an acknowledgement from the peer to 5 on Serial 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] sdlc window 5

sdlc xid

Syntax sdlc xid sdlc-address xid-number

undo sdlc xid sdlc-address

View Synchronous serial interface view

Parameter sdlc-address: SDLC address corresponding to the XID to be configured, in the range of 0x01 to 0xFE. This address should be configured beforehand.

xid-number: XID of the SDLC-enabled device, a 4-byte integer, in the range of 1 to 0xFFFFFFFF. The first 12 bits indicate the network address, and the last 20 bits indicate the node number.

Description Use the sdlc xid command to configure the XID of the SDLC.

Use the undo sdlc xid command to delete the XID of the SDLC.

By default, no SDLC XID is configured on a synchronous serial interface.

An XID identifies a device in an SNA system. When configuring an SDLC connection, pay attention to the types of the connected SNA devices. Generally, there are two types of devices in an SNA system: PU2.0 and PU2.1. An XID has been configured on PU2.1 devices, so they can announce their identity by exchanging the XID. A PU2.0 device does not come with an XID. Therefore, this command is not needed on PU2.1 devices, but it is required on PU2.0 devices to specify an XID.

Example # Set the XID of the device whose SDLC address is 0x05 to 0x2000 on Serial 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] sdlc xid 05 2000