3Com MSR 30, MSR 50 manual Llc2 max-ack, Llc2 max-pdu, Syntax llc2 max-ack length Undo llc2 max-ack

352CHAPTER 21: BASIC DLSW CONFIGURATION COMMANDS

Note that you need to remove all IP related configurations on the interface before enabling SDLC, because SDLC cannot underlie the IP protocol. For example, you need to delete the IP address of the interface.

Example # Configure Serial 2/0 to use SDLC as the link layer encapsulation protocol.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial2/0] link-protocol sdlc

llc2 max-ack

Syntax llc2 max-ack length

undo llc2 max-ack

View Ethernet interface view

Parameter length: The maximum number of information frames the router can receive before it must send an acknowledgment, in the range of 1 to 127.

Description Use the llc2 max-ackcommand to configure namely the maximum number of information frames the device can receive before it must send an acknowledgment to the peer router.

Use the undo llc2 max-ackcommand to restore the default setting.

By default, the maximum number of information frames the router can receive before it must send an acknowledgment is 3.

Example # Set the maximum number of information frames the router can receive before it must send an acknowledgment to 5 on Ethernet 1/0.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] llc2 max-ack 5

llc2 max-pdu

Syntax llc2 max-pdu length

undo llc2 max-pdu

View Ethernet interface view

Parameter length: Maximum LLC2 PDU size in bytes, in the range of 1 to 1,700.

Description Use the max-pducommand to configure the maximum LLC2 PDU size.