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352 CHAPTER 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-ack command 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-ack command 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-pdu command to configure the maximum LLC2 PDU size.